diff --git a/build/premake/extern_libs4.lua b/build/premake/extern_libs4.lua
index 91f25ee499..747d678ede 100644
--- a/build/premake/extern_libs4.lua
+++ b/build/premake/extern_libs4.lua
@@ -585,16 +585,9 @@ extern_lib_defs = {
 				includedirs { libraries_dir .. "sdl2/include/SDL" }
 			elseif not _OPTIONS["android"] then
 				-- Support SDL*_CONFIG for overriding the default PATH-based sdl*-config
-				if _OPTIONS["sdl1"] then
-					sdl_config_path = os.getenv("SDL_CONFIG")
-					if not sdl_config_path then
-						sdl_config_path = "sdl-config"
-					end
-				else
-					sdl_config_path = os.getenv("SDL2_CONFIG")
-					if not sdl_config_path then
-						sdl_config_path = "sdl2-config"
-					end
+				sdl_config_path = os.getenv("SDL2_CONFIG")
+				if not sdl_config_path then
+					sdl_config_path = "sdl2-config"
 				end
 
 				pkgconfig_cflags(nil, sdl_config_path.." --cflags")
@@ -604,16 +597,9 @@ extern_lib_defs = {
 			if os.is("windows") then
 				add_default_lib_paths("sdl2")
 			elseif not _OPTIONS["android"] then
-				if _OPTIONS["sdl1"] then
-					sdl_config_path = os.getenv("SDL_CONFIG")
-					if not sdl_config_path then
-						sdl_config_path = "sdl-config"
-					end
-				else
-					sdl_config_path = os.getenv("SDL2_CONFIG")
-					if not sdl_config_path then
-						sdl_config_path = "sdl2-config"
-					end
+				sdl_config_path = os.getenv("SDL2_CONFIG")
+				if not sdl_config_path then
+					sdl_config_path = "sdl2-config"
 				end
 				pkgconfig_libs(nil, sdl_config_path.." --libs")
 			end
diff --git a/source/gui/CDropDown.cpp b/source/gui/CDropDown.cpp
index 8fd393c8c3..be0b68d8e8 100644
--- a/source/gui/CDropDown.cpp
+++ b/source/gui/CDropDown.cpp
@@ -321,11 +321,7 @@ InReaction CDropDown::ManuallyHandleEvent(const SDL_Event_* ev)
 			// TODO: not too nice and doesn't deal with dashes.
 			if (m_Open && ((szChar >= SDLK_a && szChar <= SDLK_z) || szChar == SDLK_SPACE
 						   || (szChar >= SDLK_0 && szChar <= SDLK_9)
-	#if !SDL_VERSION_ATLEAST(2,0,0)
-						   || (szChar >= SDLK_KP0 && szChar <= SDLK_KP9)))
-	#else // SDL2
 						   || (szChar >= SDLK_KP_0 && szChar <= SDLK_KP_9)))
-	#endif
 			{
 				// arbitrary 1 second limit to add to string or start fresh.
 				// maximal amount of characters is 100, which imo is far more than enough.
diff --git a/source/gui/CGUI.cpp b/source/gui/CGUI.cpp
index f16c96d438..55c57f7b65 100644
--- a/source/gui/CGUI.cpp
+++ b/source/gui/CGUI.cpp
@@ -146,22 +146,10 @@ InReaction CGUI::HandleEvent(const SDL_Event_* ev)
 					ret = pNearest->SendEvent(GUIM_MOUSE_PRESS_RIGHT, "mouserightpress");
 				break;
 
-#if !SDL_VERSION_ATLEAST(2, 0, 0)
-			case SDL_BUTTON_WHEELDOWN: // wheel down
-				if (pNearest)
-					ret = pNearest->SendEvent(GUIM_MOUSE_WHEEL_DOWN, "mousewheeldown");
-				break;
-
-			case SDL_BUTTON_WHEELUP: // wheel up
-				if (pNearest)
-					ret = pNearest->SendEvent(GUIM_MOUSE_WHEEL_UP, "mousewheelup");
-				break;
-#endif
 			default:
 				break;
 			}
 		}
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 		else if (ev->ev.type == SDL_MOUSEWHEEL)
 		{
 			if (ev->ev.wheel.y < 0)
@@ -175,7 +163,6 @@ InReaction CGUI::HandleEvent(const SDL_Event_* ev)
 					ret = pNearest->SendEvent(GUIM_MOUSE_WHEEL_UP, "mousewheelup");
 			}
 		}
-#endif
 		else if (ev->ev.type == SDL_MOUSEBUTTONUP)
 		{
 			switch (ev->ev.button.button)
@@ -265,9 +252,7 @@ InReaction CGUI::HandleEvent(const SDL_Event_* ev)
 				!g_keys[SDLK_LCTRL] && !g_keys[SDLK_RCTRL] &&
 				!g_keys[SDLK_LALT] && !g_keys[SDLK_RALT])
 			|| ev->ev.type == SDL_HOTKEYDOWN
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 			|| ev->ev.type == SDL_TEXTINPUT || ev->ev.type == SDL_TEXTEDITING
-#endif
 			)
 		{
 			ret = GetFocusedObject()->ManuallyHandleEvent(ev);
diff --git a/source/gui/CInput.cpp b/source/gui/CInput.cpp
index 123387a491..d4722ba356 100644
--- a/source/gui/CInput.cpp
+++ b/source/gui/CInput.cpp
@@ -101,7 +101,6 @@ InReaction CInput::ManuallyHandleEvent(const SDL_Event_* ev)
 			return IN_HANDLED;
 		return(ManuallyHandleHotkeyEvent(ev));
 	}
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	// SDL2 has a new method of text input that better supports Unicode and CJK
 	// see https://wiki.libsdl.org/Tutorials/TextInput
 	else if (ev->ev.type == SDL_TEXTINPUT)
@@ -182,7 +181,6 @@ InReaction CInput::ManuallyHandleEvent(const SDL_Event_* ev)
 
 		return IN_HANDLED;
 	}
-#endif
 	else if (ev->ev.type == SDL_KEYDOWN)
 	{
 		if (m_ComposingText)
@@ -193,15 +191,10 @@ InReaction CInput::ManuallyHandleEvent(const SDL_Event_* ev)
 		CStrW* pCaption = (CStrW*)m_Settings["caption"].m_pSetting;
 		bool shiftKeyPressed = g_keys[SDLK_RSHIFT] || g_keys[SDLK_LSHIFT];
 
-#if !SDL_VERSION_ATLEAST(2, 0, 0)
-		int szChar = ev->ev.key.keysym.sym;
-		wchar_t cooked = (wchar_t)ev->ev.key.keysym.unicode;
-#else // SDL2
 		int szChar = 0;
 		if (ev->ev.type == SDL_KEYDOWN)
 			szChar = ev->ev.key.keysym.sym;
 		wchar_t cooked = 0;
-#endif
 
 		switch (szChar)
 		{
@@ -492,15 +485,10 @@ InReaction CInput::ManuallyHandleEvent(const SDL_Event_* ev)
 		}
 		default: // Insert a character
 		{
-#if !SDL_VERSION_ATLEAST(2, 0, 0)
-			if (cooked == 0)
-				return IN_PASS; // Important, because we didn't use any key
-#else // SDL2
 			// In SDL2, we no longer get Unicode wchars via SDL_Keysym
 			// we use text input events instead and they provide UTF-8 chars
 			if (ev->ev.type == SDL_KEYDOWN && cooked == 0)
 				return IN_HANDLED;
-#endif
 
 			// check max length
 			int max_length;
@@ -1041,7 +1029,6 @@ void CInput::HandleMessage(SGUIMessage& Message)
 		m_PrevTime = 0.0;
 		m_CursorVisState = false;
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 		// Tell the IME where to draw the candidate list
 		SDL_Rect rect;
 		rect.h = m_CachedActualSize.GetSize().cy;
@@ -1050,11 +1037,9 @@ void CInput::HandleMessage(SGUIMessage& Message)
 		rect.y = m_CachedActualSize.TopLeft().y;
 		SDL_SetTextInputRect(&rect);
 		SDL_StartTextInput();
-#endif
 		break;
 
 	case GUIM_LOST_FOCUS:
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 		if (m_ComposingText)
 		{
 			// Simulate a final text editing event to clear the composition
@@ -1066,7 +1051,6 @@ void CInput::HandleMessage(SGUIMessage& Message)
 			ManuallyHandleEvent(&evt);
 		}
 		SDL_StopTextInput();
-#endif
 
 		m_iBufferPos = -1;
 		m_iBufferPos_Tail = -1;
diff --git a/source/gui/scripting/GuiScriptConversions.cpp b/source/gui/scripting/GuiScriptConversions.cpp
index 4c874f3c93..9056335a1f 100644
--- a/source/gui/scripting/GuiScriptConversions.cpp
+++ b/source/gui/scripting/GuiScriptConversions.cpp
@@ -34,13 +34,7 @@ template<> void ScriptInterface::ToJSVal<SDL_Event_>(JSContext* cx, JS::MutableH
 
 	switch (val.ev.type)
 	{
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	case SDL_WINDOWEVENT: typeName = "windowevent"; break;
-#else
-	case SDL_ACTIVEEVENT: typeName = "activeevent"; break;
-	case SDL_VIDEOEXPOSE: typeName = "videoexpose"; break;
-	case SDL_VIDEORESIZE: typeName = "videoresize"; break;
-#endif
 	case SDL_KEYDOWN: typeName = "keydown"; break;
 	case SDL_KEYUP: typeName = "keyup"; break;
 	case SDL_MOUSEMOTION: typeName = "mousemotion"; break;
@@ -63,14 +57,6 @@ template<> void ScriptInterface::ToJSVal<SDL_Event_>(JSContext* cx, JS::MutableH
 
 	switch (val.ev.type)
 	{
-#if !SDL_VERSION_ATLEAST(2, 0, 0)
-	case SDL_ACTIVEEVENT:
-	{
-		SET(obj, "gain", (int)val.ev.active.gain);
-		SET(obj, "state", (int)val.ev.active.state);
-		break;
-	}
-#endif
 	case SDL_KEYDOWN:
 	case SDL_KEYUP:
 	{
@@ -89,14 +75,6 @@ template<> void ScriptInterface::ToJSVal<SDL_Event_>(JSContext* cx, JS::MutableH
 		// SET(keysym, "scancode", (int)val.ev.key.keysym.scancode); // (not in wsdl.h)
 		SET(keysym, "sym", (int)val.ev.key.keysym.sym);
 		// SET(keysym, "mod", (int)val.ev.key.keysym.mod); // (not in wsdl.h)
-#if !SDL_VERSION_ATLEAST(2, 0, 0)
-		if (val.ev.key.keysym.unicode)
-		{
-			std::wstring unicode(1, (wchar_t)val.ev.key.keysym.unicode);
-			SET(keysym, "unicode", unicode);
-		}
-		else
-#endif
 		{
 			SET(keysym, "unicode", JS::UndefinedHandleValue);
 		}
diff --git a/source/lib/external_libraries/libsdl.h b/source/lib/external_libraries/libsdl.h
index c9ae1afdeb..d53d53b320 100644
--- a/source/lib/external_libraries/libsdl.h
+++ b/source/lib/external_libraries/libsdl.h
@@ -32,12 +32,8 @@
 # include "SDL.h"
 # include "SDL_thread.h"
 
-#if SDL_VERSION_ATLEAST(2,0,0)
-# if !SDL_VERSION_ATLEAST(2,0,2)
-#  error You are using an old, untested libsdl2 release. It is \
-recommended to use libsdl2 >= 2.0.2. Alternatively, remove this \
-error message from this file, but remember you may encounter issues.
-# endif
+#if !SDL_VERSION_ATLEAST(2,0,2)
+#error You are using an old libsdl release. At least libsdl2 >= 2.0.2 is required.
 #endif
 
 // if the compiler doesn't support inlining, this header will pull
@@ -47,13 +43,8 @@ error message from this file, but remember you may encounter issues.
 # include "SDL_endian.h"
 
 # if MSC_VERSION
-#  if SDL_VERSION_ATLEAST(2,0,0)
-#   pragma comment(lib, "SDL2")
-#   pragma comment(lib, "SDL2main")
-#  else
-#   pragma comment(lib, "SDL")
-#   pragma comment(lib, "SDLmain")
-#  endif
+#  pragma comment(lib, "SDL2")
+#  pragma comment(lib, "SDL2main")
 # endif
 
 // complete definition of our forward-declared SDL_Event (see sdl_fwd.h)
diff --git a/source/lib/res/graphics/cursor.cpp b/source/lib/res/graphics/cursor.cpp
index fa7d167403..68ef96faff 100644
--- a/source/lib/res/graphics/cursor.cpp
+++ b/source/lib/res/graphics/cursor.cpp
@@ -46,38 +46,6 @@
 # define ALLOW_SYS_CURSOR 0
 #endif
 
-#if !SDL_VERSION_ATLEAST(2,0,0)
-static Status load_sys_cursor(const PIVFS& vfs, const VfsPath& pathname, int hx, int hy, sys_cursor* cursor)
-{
-# if !ALLOW_SYS_CURSOR
-	UNUSED2(vfs);
-	UNUSED2(pathname);
-	UNUSED2(hx);
-	UNUSED2(hy);
-	UNUSED2(cursor);
-
-	return ERR::FAIL;
-# else
-	shared_ptr<u8> file; size_t fileSize;
-	RETURN_STATUS_IF_ERR(vfs->LoadFile(pathname, file, fileSize));
-
-	Tex t;
-	RETURN_STATUS_IF_ERR(t.decode(file, fileSize));
-
-	// convert to required BGRA format.
-	const size_t flags = (t.m_Flags | TEX_BGR) & ~TEX_DXT;
-	RETURN_STATUS_IF_ERR(t.transform_to(flags));
-	void* bgra_img = t.get_data();
-	if(!bgra_img)
-		WARN_RETURN(ERR::FAIL);
-
-	RETURN_STATUS_IF_ERR(sys_cursor_create((int)t.m_Width, (int)t.m_Height, bgra_img, hx, hy, cursor));
-	return INFO::OK;
-# endif // ALLOW_SYS_CURSOR
-}
-
-#else // SDL_VERSION_ATLEAST(2,0,0)
-
 class SDLCursor
 {
 	SDL_Surface* surface;
@@ -120,7 +88,6 @@ public:
 		SDL_FreeSurface(surface);
 	}
 };
-#endif // SDL_VERSION_ATLEAST(2,0,0)
 
 // no init is necessary because this is stored in struct Cursor, which
 // is 0-initialized by h_mgr.
@@ -196,11 +163,7 @@ public:
 enum CursorKind
 {
 	CK_Default,
-#if !SDL_VERSION_ATLEAST(2,0,0)
-	CK_System,
-#else
 	CK_SDL,
-#endif
 	CK_OpenGL
 };
 
@@ -211,19 +174,11 @@ struct Cursor
 
 	CursorKind kind;
 
-#if !SDL_VERSION_ATLEAST(2,0,0)
-	// valid iff kind == CK_System
-	sys_cursor system_cursor;
-#else
 	// valid iff kind == CK_SDL
 	SDLCursor sdl_cursor;
-#endif
 
 	// valid iff kind == CK_OpenGL
 	GLCursor gl_cursor;
-#if !SDL_VERSION_ATLEAST(2,0,0)
-	sys_cursor gl_empty_system_cursor;
-#endif
 };
 
 H_TYPE_DEFINE(Cursor);
@@ -240,21 +195,12 @@ static void Cursor_dtor(Cursor* c)
 	case CK_Default:
 		break;	// nothing to do
 
-#if !SDL_VERSION_ATLEAST(2,0,0)
-	case CK_System:
-		sys_cursor_free(c->system_cursor);
-		break;
-#else
 	case CK_SDL:
 		c->sdl_cursor.destroy();
 		break;
-#endif
 
 	case CK_OpenGL:
 		c->gl_cursor.destroy();
-#if !SDL_VERSION_ATLEAST(2, 0, 0)
-		sys_cursor_free(c->gl_empty_system_cursor);
-#endif
 		break;
 
 	default:
@@ -280,23 +226,13 @@ static Status Cursor_reload(Cursor* c, const PIVFS& vfs, const VfsPath& name, Ha
 
 	const VfsPath pathnameImage = pathname.ChangeExtension(L".png");
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	// try loading as SDL2 cursor
 	if (!c->forceGL && c->sdl_cursor.create(vfs, pathnameImage, hotspotx, hotspoty) == INFO::OK)
 		c->kind = CK_SDL;
-#else
-	// try loading as system cursor (2d, hardware accelerated)
-	if (!c->forceGL && load_sys_cursor(vfs, pathnameImage, hotspotx, hotspoty, &c->system_cursor) == INFO::OK)
-		c->kind = CK_System;
-#endif
 	// fall back to GLCursor (system cursor code is disabled or failed)
 	else if(c->gl_cursor.create(vfs, pathnameImage, hotspotx, hotspoty) == INFO::OK)
 	{
 		c->kind = CK_OpenGL;
-#if !SDL_VERSION_ATLEAST(2, 0, 0)
-		// (we need to hide the system cursor when using a OpenGL cursor)
-		sys_cursor_create_empty(&c->gl_empty_system_cursor);
-#endif
 	}
 	// everything failed, leave cursor unchanged
 	else
@@ -312,15 +248,8 @@ static Status Cursor_validate(const Cursor* c)
 	case CK_Default:
 		break;	// nothing to do
 
-#if !SDL_VERSION_ATLEAST(2,0,0)
-	case CK_System:
-		if(c->system_cursor == 0)
-			WARN_RETURN(ERR::_1);
-		break;
-#else
 	case CK_SDL:
 		break;	// nothing to do
-#endif
 
 	case CK_OpenGL:
 		RETURN_STATUS_IF_ERR(c->gl_cursor.validate());
@@ -343,15 +272,9 @@ static Status Cursor_to_string(const Cursor* c, wchar_t* buf)
 		type = L"default";
 		break;
 
-#if !SDL_VERSION_ATLEAST(2,0,0)
-	case CK_System:
-		type = L"sys";
-		break;
-#else
 	case CK_SDL:
 		type = L"sdl";
 		break;
-#endif
 
 	case CK_OpenGL:
 		type = L"gl";
@@ -395,11 +318,7 @@ Status cursor_draw(const PIVFS& vfs, const wchar_t* name, int x, int y, bool for
 	// hide the cursor
 	if(!name)
 	{
-#if !SDL_VERSION_ATLEAST(2, 0, 0)
-		sys_cursor_set(0);
-#else
 		SDL_ShowCursor(SDL_DISABLE);
-#endif
 		return INFO::OK;
 	}
 
@@ -416,29 +335,14 @@ Status cursor_draw(const PIVFS& vfs, const wchar_t* name, int x, int y, bool for
 	case CK_Default:
 		break;
 
-#if !SDL_VERSION_ATLEAST(2,0,0)
-	case CK_System:
-		sys_cursor_set(c->system_cursor);
-		break;
-#else
 	case CK_SDL:
 		c->sdl_cursor.set();
 		SDL_ShowCursor(SDL_ENABLE);
 		break;
-#endif
 
 	case CK_OpenGL:
 		c->gl_cursor.draw(x, y);
-#if !SDL_VERSION_ATLEAST(2, 0, 0)
-		// note: gl_empty_system_cursor can be 0 if sys_cursor_create_empty
-		// failed; in that case we don't want to sys_cursor_set because that
-		// would restore the default cursor (which is exactly what we're
-		// trying to avoid here)
-		if(c->gl_empty_system_cursor)
-			sys_cursor_set(c->gl_empty_system_cursor);
-#else
 		SDL_ShowCursor(SDL_DISABLE);
-#endif
 		break;
 
 	default:
diff --git a/source/lib/sysdep/os/unix/x/x.cpp b/source/lib/sysdep/os/unix/x/x.cpp
index 2684ae5494..d4e1b3119b 100644
--- a/source/lib/sysdep/os/unix/x/x.cpp
+++ b/source/lib/sysdep/os/unix/x/x.cpp
@@ -55,10 +55,6 @@
 
 static Display *g_SDL_Display;
 static Window g_SDL_Window;
-#if !SDL_VERSION_ATLEAST(1, 3, 0)
-static void (*g_Lock_Display)(void);
-static void (*g_Unlock_Display)(void);
-#endif
 static wchar_t *selection_data=NULL;
 static size_t selection_size=0;
 
@@ -118,11 +114,8 @@ static bool get_wminfo(SDL_SysWMinfo& wminfo)
 {
 	SDL_VERSION(&wminfo.version);
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	const int ret = SDL_GetWindowWMInfo(g_VideoMode.GetWindow(), &wminfo);
-#else
-	const int ret = SDL_GetWMInfo(&wminfo);
-#endif
+
 	if(ret == 1)
 		return true;
 
@@ -261,11 +254,7 @@ Status sys_clipboard_free(wchar_t *clip_buf)
  * @see x11_clipboard_init
  * @see sys_clipboard_set
  */
-#if SDL_VERSION_ATLEAST(1, 3, 0)
 int clipboard_filter(void* UNUSED(userdata), SDL_Event* event)
-#else
-int clipboard_filter(const SDL_Event* event)
-#endif
 {
 	/* Pass on all non-window manager specific events immediately */
 	/* And do nothing if we don't actually have a clip-out to send out */
@@ -275,11 +264,7 @@ int clipboard_filter(const SDL_Event* event)
 	/* Handle window-manager specific clipboard events */
 	/* (Note: libsdl must be compiled with X11 support (SDL_VIDEO_DRIVER_X11 in SDL_config.h) -
 	   else you'll get errors like "'struct SDL_SysWMmsg' has no member named 'xevent'") */
-#if SDL_VERSION_ATLEAST(1, 3, 0)
 	XEvent* xevent = &event->syswm.msg->msg.x11.event;
-#else
-	XEvent* xevent = &event->syswm.msg->event.xevent;
-#endif
 	switch(xevent->type) {
 		/* Copy the selection from our buffer to the requested property, and
 		convert to the requested target format */
@@ -337,18 +322,10 @@ Status x11_clipboard_init()
 		{
 			g_SDL_Display = info.info.x11.display;
 			g_SDL_Window = info.info.x11.window;
-#if !SDL_VERSION_ATLEAST(1, 3, 0)
-			g_Lock_Display = info.info.x11.lock_func;
-			g_Unlock_Display = info.info.x11.unlock_func;
-#endif
 
 			/* Enable the special window hook events */
 			SDL_EventState(SDL_SYSWMEVENT, SDL_ENABLE);
-#if SDL_VERSION_ATLEAST(1, 3, 0)
 			SDL_SetEventFilter(clipboard_filter, NULL);
-#else
-			SDL_SetEventFilter(clipboard_filter);
-#endif
 
 			return INFO::OK;
 		}
@@ -387,23 +364,15 @@ Status sys_clipboard_set(const wchar_t *str)
 	selection_data = (wchar_t *)malloc(selection_size);
 	wcscpy(selection_data, str);
 
-#if !SDL_VERSION_ATLEAST(1, 3, 0)
-	g_Lock_Display();
-#endif
-
 	// Like for the clipboard_get code above, we rather use CLIPBOARD than
 	// PRIMARY - more windows'y behaviour there.
 	Atom clipboard_atom = XInternAtom(g_SDL_Display, "CLIPBOARD", False);
 	XSetSelectionOwner(g_SDL_Display, clipboard_atom, g_SDL_Window, CurrentTime);
 	XSetSelectionOwner(g_SDL_Display, XA_PRIMARY, g_SDL_Window, CurrentTime);
 
-#if !SDL_VERSION_ATLEAST(1, 3, 0)
-	g_Unlock_Display();
-#else
-	// SDL 1.3 doesn't have a lockable event thread, so it just uses
+	// SDL2 doesn't have a lockable event thread, so it just uses
 	// XSync directly instead of lock_func/unlock_func
 	XSync(g_SDL_Display, False);
-#endif
 
 	return INFO::OK;
 }
@@ -478,35 +447,19 @@ Status sys_cursor_set(sys_cursor cursor)
 		if(wminfo.subsystem != SDL_SYSWM_X11)
 			WARN_RETURN(ERR::FAIL);
 
-#if !SDL_VERSION_ATLEAST(1, 3, 0)
-		wminfo.info.x11.lock_func();
-#endif
-		
 		SDL_ShowCursor(SDL_ENABLE);
 
 		Window window;
 		if(wminfo.info.x11.window)
 			window = wminfo.info.x11.window;
 		else
-		{
-#if !SDL_VERSION_ATLEAST(1, 3, 0)
-			// wminfo.info.x11.window is sometimes 0, in which case
-			// it causes a crash; in these cases use fswindow instead
-			window = wminfo.info.x11.fswindow;
-#else
 			WARN_RETURN(ERR::FAIL);
-#endif
-		}
 
 		XDefineCursor(wminfo.info.x11.display, window,
 			static_cast<sys_cursor_impl*>(cursor)->cursor);
-#if !SDL_VERSION_ATLEAST(1, 3, 0)
-		wminfo.info.x11.unlock_func();
-#else
-		// SDL 1.3 doesn't have a lockable event thread, so it just uses
+		// SDL2 doesn't have a lockable event thread, so it just uses
 		// XSync directly instead of lock_func/unlock_func
 		XSync(wminfo.info.x11.display, False);
-#endif
 	}
 
 	return INFO::OK;}
diff --git a/source/main.cpp b/source/main.cpp
index c455b01ee0..c881fa17da 100644
--- a/source/main.cpp
+++ b/source/main.cpp
@@ -96,7 +96,6 @@ static InReaction MainInputHandler(const SDL_Event_* ev)
 {
 	switch(ev->ev.type)
 	{
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	case SDL_WINDOWEVENT:
 		switch(ev->ev.window.event)
 		{
@@ -114,24 +113,6 @@ static InReaction MainInputHandler(const SDL_Event_* ev)
 			g_VideoMode.UpdatePosition(ev->ev.window.data1, ev->ev.window.data2);
 		}
 		break;
-#else
-	case SDL_ACTIVEEVENT:
-		if (ev->ev.active.state & SDL_APPMOUSEFOCUS)
-		{
-			// Tell renderer not to render cursor if mouse focus is lost
-			//	this restores system cursor, until/if focus is regained
-			if (!ev->ev.active.gain)
-				RenderCursor(false);
-			else
-				RenderCursor(true);
-		}
-		break;
-
-	case SDL_VIDEORESIZE:
-		g_ResizedW = ev->ev.resize.w;
-		g_ResizedH = ev->ev.resize.h;
-		break;
-#endif
 
 	case SDL_QUIT:
 		kill_mainloop();
@@ -374,11 +355,7 @@ static void Frame()
 		Render();
 
 		PROFILE3("swap buffers");
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 		SDL_GL_SwapWindow(g_VideoMode.GetWindow());
-#else
-		SDL_GL_SwapBuffers();
-#endif
 	}
 	ogl_WarnIfError();
 
diff --git a/source/ps/CConsole.cpp b/source/ps/CConsole.cpp
index 526e61b459..df987659c6 100644
--- a/source/ps/CConsole.cpp
+++ b/source/ps/CConsole.cpp
@@ -93,13 +93,11 @@ void CConsole::ToggleVisible()
 	m_bToggle = true;
 	m_bVisible = !m_bVisible;
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	// TODO: this should be based on input focus, not visibility
 	if (m_bVisible)
 		SDL_StartTextInput();
 	else
 		SDL_StopTextInput();
-#endif
 }
 
 void CConsole::SetVisible(bool visible)
@@ -611,17 +609,8 @@ void CConsole::SaveHistory()
 	g_VFS->CreateFile(m_sHistoryFile, buffer.Data(), buffer.Size());
 }
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 static bool isUnprintableChar(SDL_Keysym key)
-#else
-static bool isUnprintableChar(SDL_keysym key)
-#endif
 {
-#if !SDL_VERSION_ATLEAST(2, 0, 0)
-	// U+0000 to U+001F are control characters
-	if (key.unicode < 0x20)
-	{
-#endif
 		switch (key.sym)
 		{
 			// We want to allow some, which are handled specially
@@ -637,10 +626,6 @@ static bool isUnprintableChar(SDL_keysym key)
 		default:
 			return true;
 		}
-#if !SDL_VERSION_ATLEAST(2, 0, 0)
-	}
-	return false;
-#endif
 }
 
 InReaction conInputHandler(const SDL_Event_* ev)
@@ -676,7 +661,6 @@ InReaction conInputHandler(const SDL_Event_* ev)
 	if (!g_Console->IsActive())
 		return IN_PASS;
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	// In SDL2, we no longer get Unicode wchars via SDL_Keysym
 	// we use text input events instead and they provide UTF-8 chars
 	if (ev->ev.type == SDL_TEXTINPUT && !HotkeyIsPressed("console.toggle"))
@@ -688,7 +672,6 @@ InReaction conInputHandler(const SDL_Event_* ev)
 		return IN_HANDLED;
 	}
 	// TODO: text editing events for IME support
-#endif
 
 	if (ev->ev.type != SDL_KEYDOWN)
 		return IN_PASS;
@@ -700,11 +683,7 @@ InReaction conInputHandler(const SDL_Event_* ev)
 	if (!isUnprintableChar(ev->ev.key.keysym) &&
 		!HotkeyIsPressed("console.toggle"))
 	{
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 		g_Console->InsertChar(sym, 0);
-#else
-		g_Console->InsertChar(sym, (wchar_t)ev->ev.key.keysym.unicode);
-#endif
 		return IN_HANDLED;
 	}
 
diff --git a/source/ps/GameSetup/GameSetup.cpp b/source/ps/GameSetup/GameSetup.cpp
index 9407688c0e..ed34ba1fc2 100644
--- a/source/ps/GameSetup/GameSetup.cpp
+++ b/source/ps/GameSetup/GameSetup.cpp
@@ -545,10 +545,6 @@ static void InitPs(bool setup_gui, const CStrW& gui_page, ScriptInterface* srcSc
 
 static void InitInput()
 {
-#if !SDL_VERSION_ATLEAST(2, 0, 0)
-	SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
-#endif
-
 	g_Joystick.Initialise();
 
 	// register input handlers
@@ -663,11 +659,7 @@ static void InitSDL()
 	}
 	atexit(SDL_Quit);
 
-#if !SDL_VERSION_ATLEAST(2, 0, 0)
-	SDL_EnableUNICODE(1);
-#endif
-
-#if OS_MACOSX && SDL_VERSION_ATLEAST(2, 0, 0)
+#if OS_MACOSX
 	// Some Mac mice only have one button, so they can't right-click
 	// but SDL2 can emulate that with Ctrl+Click
 	bool macMouse = false;
@@ -993,10 +985,6 @@ void InitGraphics(const CmdLineArgs& args, int flags)
 
 		if (!g_VideoMode.InitSDL())
 			throw PSERROR_System_VmodeFailed(); // abort startup
-
-#if !SDL_VERSION_ATLEAST(2, 0, 0)
-		SDL_WM_SetCaption("0 A.D.", "0 A.D.");
-#endif
 	}
 
 	RunHardwareDetection();
diff --git a/source/ps/GameSetup/HWDetect.cpp b/source/ps/GameSetup/HWDetect.cpp
index 6fb09cdb12..13dc77ce0d 100644
--- a/source/ps/GameSetup/HWDetect.cpp
+++ b/source/ps/GameSetup/HWDetect.cpp
@@ -729,18 +729,10 @@ static void ReportGLLimits(ScriptInterface& scriptInterface, JS::HandleValue set
 
 	SDL_SysWMinfo wminfo;
 	SDL_VERSION(&wminfo.version);
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	const int ret = SDL_GetWindowWMInfo(g_VideoMode.GetWindow(), &wminfo);
-#else
-	const int ret = SDL_GetWMInfo(&wminfo);
-#endif
 	if (ret && wminfo.subsystem == SDL_SYSWM_X11)
 	{
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 		Display* dpy = wminfo.info.x11.display;
-#else
-		Display* dpy = wminfo.info.x11.gfxdisplay;
-#endif
 		int scrnum = DefaultScreen(dpy);
 
 		const char* glxexts = glXQueryExtensionsString(dpy, scrnum);
diff --git a/source/ps/Globals.cpp b/source/ps/Globals.cpp
index 811054998a..3c6e6394dd 100644
--- a/source/ps/Globals.cpp
+++ b/source/ps/Globals.cpp
@@ -43,7 +43,6 @@ InReaction GlobalsInputHandler(const SDL_Event_* ev)
 
 	switch(ev->ev.type)
 	{
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	case SDL_WINDOWEVENT:
 		switch(ev->ev.window.event)
 		{
@@ -68,26 +67,6 @@ InReaction GlobalsInputHandler(const SDL_Event_* ev)
 			break;
 		}
 		return IN_PASS;
-#else
-	case SDL_ACTIVEEVENT:
-		if(ev->ev.active.state & SDL_APPACTIVE)
-		{
-			g_app_minimized = (ev->ev.active.gain == 0);	// negated
-
-			if ( g_SoundManager )
-				g_SoundManager->Pause( g_app_minimized && g_PauseOnFocusLoss && !g_NetClient );
-		}
-		if(ev->ev.active.state & SDL_APPINPUTFOCUS)
-		{
-			g_app_has_focus = (ev->ev.active.gain != 0);
-
-			if ( g_SoundManager )
-				g_SoundManager->Pause( !g_app_has_focus && g_PauseOnFocusLoss && !g_NetClient );
-		}
-		if(ev->ev.active.state & SDL_APPMOUSEFOCUS)
-			g_mouse_active = (ev->ev.active.gain != 0);
-		return IN_PASS;
-#endif
 
 	case SDL_MOUSEMOTION:
 		g_mouse_x = ev->ev.motion.x;
diff --git a/source/ps/Hotkey.cpp b/source/ps/Hotkey.cpp
index fa17af1f6a..6dc3a3d194 100644
--- a/source/ps/Hotkey.cpp
+++ b/source/ps/Hotkey.cpp
@@ -30,11 +30,7 @@
 
 static bool unified[UNIFIED_LAST - UNIFIED_SHIFT];
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 #define SDLKEY SDL_Keycode
-#else
-#define SDLKEY SDLKey
-#endif
 
 struct SKey
 {
@@ -167,17 +163,14 @@ InReaction HotkeyInputHandler(const SDL_Event_* ev)
 
 	case SDL_MOUSEBUTTONDOWN:
 	case SDL_MOUSEBUTTONUP:
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 		// Mousewheel events are no longer buttons, but we want to maintain the order
 		// expected by g_mouse_buttons for compatibility
 		if (ev->ev.button.button >= SDL_BUTTON_X1)
 			keycode = MOUSE_BASE + (int)ev->ev.button.button + 2;
 		else
-#endif
 		keycode = MOUSE_BASE + (int)ev->ev.button.button;
 		break;
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	case SDL_MOUSEWHEEL:
 		if (ev->ev.wheel.y > 0)
 		{
@@ -200,7 +193,6 @@ InReaction HotkeyInputHandler(const SDL_Event_* ev)
 			break;
 		}
 		return IN_PASS;
-#endif
 
 	case SDL_HOTKEYDOWN:
 		g_HotkeyStatus[static_cast<const char*>(ev->ev.user.data1)] = true;
@@ -214,13 +206,6 @@ InReaction HotkeyInputHandler(const SDL_Event_* ev)
 		return IN_PASS;
 	}
 
-#if !SDL_VERSION_ATLEAST(2, 0, 0)
-	// Rather ugly hack to make the '"' key work better on a MacBook Pro on Windows so it doesn't
-	// always close the console. (Maybe this would be better handled in wsdl or something?)
-	if (keycode == SDLK_BACKQUOTE && (ev->ev.key.keysym.unicode == '\'' || ev->ev.key.keysym.unicode == '"'))
-		keycode = ev->ev.key.keysym.unicode;
-#endif
-
 	// Somewhat hackish:
 	// Create phantom 'unified-modifier' events when left- or right- modifier keys are pressed
 	// Just send them to this handler; don't let the imaginary event codes leak back to real SDL.
@@ -245,11 +230,7 @@ InReaction HotkeyInputHandler(const SDL_Event_* ev)
 		unified[2] = (phantom.ev.type == SDL_KEYDOWN);
 		HotkeyInputHandler(&phantom);
 	}
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	else if ((keycode == SDLK_LGUI) || (keycode == SDLK_RGUI))
-#else // SDL 1.2
-	else if ((keycode == SDLK_LSUPER) || (keycode == SDLK_RSUPER) || (keycode == SDLK_LMETA) || (keycode == SDLK_RMETA))
-#endif
 	{
 		phantom.ev.key.keysym.sym = (SDLKEY)UNIFIED_SUPER;
 		unified[3] = (phantom.ev.type == SDL_KEYDOWN);
@@ -278,11 +259,7 @@ InReaction HotkeyInputHandler(const SDL_Event_* ev)
 	// matching the conditions (i.e. the event with the highest number of auxiliary
 	// keys, providing they're all down)
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	bool typeKeyDown = ( ev->ev.type == SDL_KEYDOWN ) || ( ev->ev.type == SDL_MOUSEBUTTONDOWN ) || (ev->ev.type == SDL_MOUSEWHEEL);
-#else
-	bool typeKeyDown = ( ev->ev.type == SDL_KEYDOWN ) || ( ev->ev.type == SDL_MOUSEBUTTONDOWN );
-#endif
 
 	// -- KEYDOWN SECTION -- 
 
diff --git a/source/ps/Joystick.cpp b/source/ps/Joystick.cpp
index d219f1d37f..c3083dd769 100644
--- a/source/ps/Joystick.cpp
+++ b/source/ps/Joystick.cpp
@@ -51,7 +51,6 @@ void CJoystick::Initialise()
 
 	for (int i = 0; i < numJoysticks; ++i)
 	{
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 		SDL_Joystick* stick = SDL_JoystickOpen(i);
 		if (!stick)
 		{
@@ -59,13 +58,8 @@ void CJoystick::Initialise()
 			continue;
 		}
 		const char* name = SDL_JoystickName(stick);
-#else // SDL 1.2
-		const char* name = SDL_JoystickName(i);
-#endif
 		LOGMESSAGE("Joystick %d: %s", i, name);
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 		SDL_JoystickClose(stick);
-#endif
 	}
 
 	if (numJoysticks)
diff --git a/source/ps/KeyName.cpp b/source/ps/KeyName.cpp
index 059033978d..0246f833c7 100644
--- a/source/ps/KeyName.cpp
+++ b/source/ps/KeyName.cpp
@@ -112,7 +112,6 @@ static const SKeycodeMapping keycodeMapping[] =
 	{ SDLK_z, "Z", 0 },
 	{ SDLK_DELETE, "Delete", "Del" },
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	{ SDLK_KP_0, "Numpad 0", "Num0" },
 	{ SDLK_KP_1, "Numpad 1", "Num1" },
 	{ SDLK_KP_2, "Numpad 2", "Num2" },
@@ -123,115 +122,6 @@ static const SKeycodeMapping keycodeMapping[] =
 	{ SDLK_KP_7, "Numpad 7", "Num7" },
 	{ SDLK_KP_8, "Numpad 8", "Num8" },
 	{ SDLK_KP_9, "Numpad 9", "Num9" },
-#else
-	{ SDLK_WORLD_0, "World0", "W0" },
-	{ SDLK_WORLD_1, "World1", "W1" },
-	{ SDLK_WORLD_2, "World2", "W2" },
-	{ SDLK_WORLD_3, "World3", "W3" },
-	{ SDLK_WORLD_4, "World4", "W4" },
-	{ SDLK_WORLD_5, "World5", "W5" },
-	{ SDLK_WORLD_6, "World6", "W6" },
-	{ SDLK_WORLD_7, "World7", "W7" },
-	{ SDLK_WORLD_8, "World8", "W8" },
-	{ SDLK_WORLD_9, "World9", "W9" },
-	{ SDLK_WORLD_10, "World10", "W10" },
-	{ SDLK_WORLD_11, "World11", "W11" },
-	{ SDLK_WORLD_12, "World12", "W12" },
-	{ SDLK_WORLD_13, "World13", "W13" },
-	{ SDLK_WORLD_14, "World14", "W14" },
-	{ SDLK_WORLD_15, "World15", "W15" },
-	{ SDLK_WORLD_16, "World16", "W16" },
-	{ SDLK_WORLD_17, "World17", "W17" },
-	{ SDLK_WORLD_18, "World18", "W18" },
-	{ SDLK_WORLD_19, "World19", "W19" },
-	{ SDLK_WORLD_20, "World20", "W20" },
-	{ SDLK_WORLD_21, "World21", "W21" },
-	{ SDLK_WORLD_22, "World22", "W22" },
-	{ SDLK_WORLD_23, "World23", "W23" },
-	{ SDLK_WORLD_24, "World24", "W24" },
-	{ SDLK_WORLD_25, "World25", "W25" },
-	{ SDLK_WORLD_26, "World26", "W26" },
-	{ SDLK_WORLD_27, "World27", "W27" },
-	{ SDLK_WORLD_28, "World28", "W28" },
-	{ SDLK_WORLD_29, "World29", "W29" },
-	{ SDLK_WORLD_30, "World30", "W30" },
-	{ SDLK_WORLD_31, "World31", "W31" },
-	{ SDLK_WORLD_32, "World32", "W32" },
-	{ SDLK_WORLD_33, "World33", "W33" },
-	{ SDLK_WORLD_34, "World34", "W34" },
-	{ SDLK_WORLD_35, "World35", "W35" },
-	{ SDLK_WORLD_36, "World36", "W36" },
-	{ SDLK_WORLD_37, "World37", "W37" },
-	{ SDLK_WORLD_38, "World38", "W38" },
-	{ SDLK_WORLD_39, "World39", "W39" },
-	{ SDLK_WORLD_40, "World40", "W40" },
-	{ SDLK_WORLD_41, "World41", "W41" },
-	{ SDLK_WORLD_42, "World42", "W42" },
-	{ SDLK_WORLD_43, "World43", "W43" },
-	{ SDLK_WORLD_44, "World44", "W44" },
-	{ SDLK_WORLD_45, "World45", "W45" },
-	{ SDLK_WORLD_46, "World46", "W46" },
-	{ SDLK_WORLD_47, "World47", "W47" },
-	{ SDLK_WORLD_48, "World48", "W48" },
-	{ SDLK_WORLD_49, "World49", "W49" },
-	{ SDLK_WORLD_50, "World50", "W50" },
-	{ SDLK_WORLD_51, "World51", "W51" },
-	{ SDLK_WORLD_52, "World52", "W52" },
-	{ SDLK_WORLD_53, "World53", "W53" },
-	{ SDLK_WORLD_54, "World54", "W54" },
-	{ SDLK_WORLD_55, "World55", "W55" },
-	{ SDLK_WORLD_56, "World56", "W56" },
-	{ SDLK_WORLD_57, "World57", "W57" },
-	{ SDLK_WORLD_58, "World58", "W58" },
-	{ SDLK_WORLD_59, "World59", "W59" },
-	{ SDLK_WORLD_60, "World60", "W60" },
-	{ SDLK_WORLD_61, "World61", "W61" },
-	{ SDLK_WORLD_62, "World62", "W62" },
-	{ SDLK_WORLD_63, "World63", "W63" },
-	{ SDLK_WORLD_64, "World64", "W64" },
-	{ SDLK_WORLD_65, "World65", "W65" },
-	{ SDLK_WORLD_66, "World66", "W66" },
-	{ SDLK_WORLD_67, "World67", "W67" },
-	{ SDLK_WORLD_68, "World68", "W68" },
-	{ SDLK_WORLD_69, "World69", "W69" },
-	{ SDLK_WORLD_70, "World70", "W70" },
-	{ SDLK_WORLD_71, "World71", "W71" },
-	{ SDLK_WORLD_72, "World72", "W72" },
-	{ SDLK_WORLD_73, "World73", "W73" },
-	{ SDLK_WORLD_74, "World74", "W74" },
-	{ SDLK_WORLD_75, "World75", "W75" },
-	{ SDLK_WORLD_76, "World76", "W76" },
-	{ SDLK_WORLD_77, "World77", "W77" },
-	{ SDLK_WORLD_78, "World78", "W78" },
-	{ SDLK_WORLD_79, "World79", "W79" },
-	{ SDLK_WORLD_80, "World80", "W80" },
-	{ SDLK_WORLD_81, "World81", "W81" },
-	{ SDLK_WORLD_82, "World82", "W82" },
-	{ SDLK_WORLD_83, "World83", "W83" },
-	{ SDLK_WORLD_84, "World84", "W84" },
-	{ SDLK_WORLD_85, "World85", "W85" },
-	{ SDLK_WORLD_86, "World86", "W86" },
-	{ SDLK_WORLD_87, "World87", "W87" },
-	{ SDLK_WORLD_88, "World88", "W88" },
-	{ SDLK_WORLD_89, "World89", "W89" },
-	{ SDLK_WORLD_90, "World90", "W90" },
-	{ SDLK_WORLD_91, "World91", "W91" },
-	{ SDLK_WORLD_92, "World92", "W92" },
-	{ SDLK_WORLD_93, "World93", "W93" },
-	{ SDLK_WORLD_94, "World94", "W94" },
-	{ SDLK_WORLD_95, "World95", "W95" },
-
-	{ SDLK_KP0, "Numpad 0", "Num0" },
-	{ SDLK_KP1, "Numpad 1", "Num1" },
-	{ SDLK_KP2, "Numpad 2", "Num2" },
-	{ SDLK_KP3, "Numpad 3", "Num3" },
-	{ SDLK_KP4, "Numpad 4", "Num4" },
-	{ SDLK_KP5, "Numpad 5", "Num5" },
-	{ SDLK_KP6, "Numpad 6", "Num6" },
-	{ SDLK_KP7, "Numpad 7", "Num7" },
-	{ SDLK_KP8, "Numpad 8", "Num8" },
-	{ SDLK_KP9, "Numpad 9", "Num9" },
-#endif
 
 	{ SDLK_KP_PERIOD, "Numpad .", "NumPoint" },
 	{ SDLK_KP_DIVIDE, "Numpad /", "NumDivide" },
@@ -267,19 +157,11 @@ static const SKeycodeMapping keycodeMapping[] =
 	{ SDLK_F14, "F14", 0 },
 	{ SDLK_F15, "F15", 0 },
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	{ SDLK_NUMLOCKCLEAR, "Num Lock", "NumLock" },
-#else
-	{ SDLK_NUMLOCK, "Num Lock", "NumLock" },
-#endif
 
 	{ SDLK_CAPSLOCK, "Caps Lock", "CapsLock" },
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	{ SDLK_SCROLLLOCK, "Scroll Lock", "ScrlLock" },
-#else
-	{ SDLK_SCROLLOCK, "Scroll Lock", "ScrlLock" },
-#endif
 
 	{ SDLK_RSHIFT, "Right Shift", "RightShift" },
 	{ SDLK_LSHIFT, "Left Shift", "LeftShift" },
@@ -288,31 +170,18 @@ static const SKeycodeMapping keycodeMapping[] =
 	{ SDLK_RALT, "Right Alt", "RightAlt" },
 	{ SDLK_LALT, "Left Alt", "LeftAlt" },
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	{ SDLK_LGUI, "Left Super", "LeftWin" },        /* "Windows" keys */
 	{ SDLK_RGUI, "Right Super", "RightWin" },        
-#else
-	{ SDLK_LSUPER, "Left Super", "LeftWin" },        /* "Windows" keys */
-	{ SDLK_RSUPER, "Right Super", "RightWin" },        
-#endif
 
 	{ SDLK_MODE, "Alt Gr", "AltGr" },
 
 	{ SDLK_HELP, "Help", 0 }, // ?
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	{ SDLK_PRINTSCREEN, "Print Screen", "PrtSc" },
-#else
-	{ SDLK_PRINT, "Print Screen", "PrtSc" },
-#endif
 
 	{ SDLK_SYSREQ, "SysRq", 0 },
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	{ SDLK_STOP, "Break", 0 },
-#else
-	{ SDLK_BREAK, "Break", 0 },
-#endif
 
 	{ SDLK_MENU, "Menu", 0 }, // ?
 	{ SDLK_POWER, "Power", 0 }, // ?
diff --git a/source/ps/KeyName.h b/source/ps/KeyName.h
index e4bef52692..9718fcafff 100644
--- a/source/ps/KeyName.h
+++ b/source/ps/KeyName.h
@@ -28,11 +28,7 @@ extern CStr8 FindKeyName(int keycode);
 extern int FindKeyCode(const CStr8& keyname);
 
 // Pick a code which is greater than any keycodes used by SDL itself
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 # define CUSTOM_SDL_KEYCODE SDL_SCANCODE_TO_KEYCODE(SDL_NUM_SCANCODES)
-#else
-# define CUSTOM_SDL_KEYCODE SDLK_LAST
-#endif
 
 enum {
 	// Start sequential IDs in the right place
@@ -51,26 +47,11 @@ enum {
 	MOUSE_LEFT = MOUSE_BASE + SDL_BUTTON_LEFT,
 	MOUSE_MIDDLE = MOUSE_BASE + SDL_BUTTON_MIDDLE,
 	MOUSE_RIGHT = MOUSE_BASE + SDL_BUTTON_RIGHT,
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	// SDL2 doesn't count wheels as buttons, so just give them the previous sequential IDs
 	MOUSE_WHEELUP = MOUSE_BASE + 4,
 	MOUSE_WHEELDOWN = MOUSE_BASE + 5,
 	MOUSE_X1 = MOUSE_BASE + SDL_BUTTON_X1 + 2,
 	MOUSE_X2 = MOUSE_BASE + SDL_BUTTON_X2 + 2,
-#elif SDL_VERSION_ATLEAST(1, 2, 13)
-	// SDL 1.2 defines wheel buttons before X1/X2 buttons
-	MOUSE_WHEELUP = MOUSE_BASE + SDL_BUTTON_WHEELUP,
-	MOUSE_WHEELDOWN = MOUSE_BASE + SDL_BUTTON_WHEELDOWN,
-	MOUSE_X1 = MOUSE_BASE + SDL_BUTTON_X1,
-	MOUSE_X2 = MOUSE_BASE + SDL_BUTTON_X2,
-#else
-	// SDL <1.2.13 doesn't support X1/X2 buttons, so define them manually
-	MOUSE_WHEELUP = MOUSE_BASE + SDL_BUTTON_WHEELUP,
-	MOUSE_WHEELDOWN = MOUSE_BASE + SDL_BUTTON_WHEELDOWN,
-	MOUSE_X1 = MOUSE_BASE + SDL_BUTTON_WHEELDOWN + 1,
-	MOUSE_X2 = MOUSE_BASE + SDL_BUTTON_WHEELDOWN + 2,
-#endif
-
 }; 
 
 #endif	// #ifndef INCLUDED_KEYNAME
diff --git a/source/ps/TouchInput.cpp b/source/ps/TouchInput.cpp
index dc4704a98f..33b05bbf49 100644
--- a/source/ps/TouchInput.cpp
+++ b/source/ps/TouchInput.cpp
@@ -261,7 +261,6 @@ InReaction CTouchInput::HandleEvent(const SDL_Event_* ev)
 	}
 #endif
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	switch(ev->ev.type)
 	{
 	case SDL_FINGERDOWN:
@@ -285,7 +284,6 @@ InReaction CTouchInput::HandleEvent(const SDL_Event_* ev)
 		return IN_HANDLED;
 	}
 	}
-#endif
 
 	return IN_PASS;
 }
diff --git a/source/ps/VideoMode.cpp b/source/ps/VideoMode.cpp
index b87a93e037..c1aa2cb89e 100644
--- a/source/ps/VideoMode.cpp
+++ b/source/ps/VideoMode.cpp
@@ -71,7 +71,6 @@ void CVideoMode::ReadConfig()
 
 bool CVideoMode::SetVideoMode(int w, int h, int bpp, bool fullscreen)
 {
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	Uint32 flags = 0;
 	if (fullscreen)
 		flags |= SDL_WINDOW_FULLSCREEN_DESKTOP;
@@ -154,47 +153,6 @@ bool CVideoMode::SetVideoMode(int w, int h, int bpp, bool fullscreen)
 	else
 		SDL_SetWindowGrab(m_Window, SDL_FALSE);
 
-#else // SDL 1.2:
-
-	Uint32 flags = SDL_OPENGL;
-	if (fullscreen)
-		flags |= SDL_FULLSCREEN;
-	else
-		flags |= SDL_RESIZABLE;
-
-	SDL_Surface* screen = SDL_SetVideoMode(w, h, bpp, flags);
-
-	if (!screen)
-	{
-		// If fullscreen fails, try windowed mode
-		if (fullscreen)
-		{
-			LOGWARNING("Failed to set the video mode to fullscreen for the chosen resolution "
-				"%dx%d:%d (\"%hs\"), falling back to windowed mode",
-				w, h, bpp, SDL_GetError());
-			// Using default size for the window for now, as the attempted setting
-			// could be as large, or larger than the screen size.
-			return SetVideoMode(DEFAULT_WINDOW_W, DEFAULT_WINDOW_H, bpp, false);		
-		}
-		else
-		{
-			LOGERROR("SetVideoMode failed: %dx%d:%d %d (\"%s\")",
-				w, h, bpp, fullscreen ? 1 : 0, SDL_GetError());
-			return false;
-		}
-	}
-
-	// Grab the current video settings
-	m_CurrentW = screen->w;
-	m_CurrentH = screen->h;
-	m_CurrentBPP = screen->format->BitsPerPixel;
-
-	if (fullscreen)
-		SDL_WM_GrabInput(SDL_GRAB_ON);
-	else
-		SDL_WM_GrabInput(SDL_GRAB_OFF);
-#endif
-
 	m_IsFullscreen = fullscreen;
 
 	g_xres = m_CurrentW;
@@ -249,11 +207,8 @@ bool CVideoMode::InitSDL()
 	SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
 	SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
 	SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
-#if !SDL_VERSION_ATLEAST(2, 0, 0)
-	SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL, g_VSync ? 1 : 0);
-#endif
 
-#if CONFIG2_GLES && SDL_VERSION_ATLEAST(2, 0, 0)
+#if CONFIG2_GLES
 	// Require GLES 2.0
 	SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
 	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
@@ -270,9 +225,7 @@ bool CVideoMode::InitSDL()
 			return false;
 	}
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	SDL_GL_SetSwapInterval(g_VSync ? 1 : 0);
-#endif
 
 	// Work around a bug in the proprietary Linux ATI driver (at least versions 8.16.20 and 8.14.13).
 	// The driver appears to register its own atexit hook on context creation.
@@ -287,26 +240,11 @@ bool CVideoMode::InitSDL()
 	ogl_Init(); // required after each mode change
 	// (TODO: does that mean we need to call this when toggling fullscreen later?)
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 #if !OS_ANDROID
 	u16 ramp[256];
 	SDL_CalculateGammaRamp(g_Gamma, ramp);
 	if (SDL_SetWindowGammaRamp(m_Window, ramp, ramp, ramp) < 0)
 		LOGWARNING("SDL_SetWindowGammaRamp failed");
-#endif
-#else
-# if OS_MACOSX
-	// Workaround for crash on Mavericks, see http://trac.wildfiregames.com/ticket/2272
-	int major, minor, bugfix;
-	GetSystemVersion(major, minor, bugfix);
-	if (minor < 9)
-	{
-# endif
-	if (SDL_SetGamma(g_Gamma, g_Gamma, g_Gamma) < 0)
-		LOGWARNING("SDL_SetGamma failed");
-# if OS_MACOSX
-	}
-# endif
 #endif
 
 	m_IsInitialised = true;
@@ -339,13 +277,11 @@ void CVideoMode::Shutdown()
 
 	m_IsFullscreen = false;
 	m_IsInitialised = false;
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	if (m_Window)
 	{
 		SDL_DestroyWindow(m_Window);
 		m_Window = NULL;
 	}
-#endif
 }
 
 void CVideoMode::EnableS3TC()
diff --git a/source/tools/atlas/AtlasUI/Misc/KeyMap.cpp b/source/tools/atlas/AtlasUI/Misc/KeyMap.cpp
index cc9f9a8c81..f8e118b6f5 100644
--- a/source/tools/atlas/AtlasUI/Misc/KeyMap.cpp
+++ b/source/tools/atlas/AtlasUI/Misc/KeyMap.cpp
@@ -20,11 +20,7 @@
 #include "KeyMap.h"
 
 #include "SDL_version.h"
-#if SDL_VERSION_ATLEAST(2, 0, 0)
-# include "SDL_keycode.h"
-#else // SDL 1.2
-# include "SDL_keysym.h"
-#endif
+#include "SDL_keycode.h"
 
 int GetSDLKeyFromWxKeyCode(int wxkey)
 {
@@ -37,7 +33,6 @@ int GetSDLKeyFromWxKeyCode(int wxkey)
 
 	switch (wxkey)
 	{
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	case WXK_NUMPAD0: return SDLK_KP_0;
 	case WXK_NUMPAD1: return SDLK_KP_1;
 	case WXK_NUMPAD2: return SDLK_KP_2;
@@ -48,18 +43,6 @@ int GetSDLKeyFromWxKeyCode(int wxkey)
 	case WXK_NUMPAD7: return SDLK_KP_7;
 	case WXK_NUMPAD8: return SDLK_KP_8;
 	case WXK_NUMPAD9: return SDLK_KP_9;
-#else // SDL 1.2
-	case WXK_NUMPAD0: return SDLK_KP0;
-	case WXK_NUMPAD1: return SDLK_KP1;
-	case WXK_NUMPAD2: return SDLK_KP2;
-	case WXK_NUMPAD3: return SDLK_KP3;
-	case WXK_NUMPAD4: return SDLK_KP4;
-	case WXK_NUMPAD5: return SDLK_KP5;
-	case WXK_NUMPAD6: return SDLK_KP6;
-	case WXK_NUMPAD7: return SDLK_KP7;
-	case WXK_NUMPAD8: return SDLK_KP8;
-	case WXK_NUMPAD9: return SDLK_KP9;
-#endif
 	case WXK_NUMPAD_DECIMAL: return SDLK_KP_PERIOD;
 	case WXK_NUMPAD_DIVIDE: return SDLK_KP_DIVIDE;
 	case WXK_NUMPAD_MULTIPLY: return SDLK_KP_MULTIPLY;
@@ -94,13 +77,8 @@ int GetSDLKeyFromWxKeyCode(int wxkey)
 	case WXK_F14: return SDLK_F14;
 	case WXK_F15: return SDLK_F15;
 
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	case WXK_NUMLOCK: return SDLK_NUMLOCKCLEAR;
 	case WXK_SCROLL: return SDLK_SCROLLLOCK;
-#else // SDL 1.2
-	case WXK_NUMLOCK: return SDLK_NUMLOCK;
-	case WXK_SCROLL: return SDLK_SCROLLOCK;
-#endif
 //	case WXK_: return SDLK_CAPSLOCK;
 	case WXK_SHIFT: return SDLK_RSHIFT;
 //	case WXK_: return SDLK_LSHIFT;
@@ -116,11 +94,7 @@ int GetSDLKeyFromWxKeyCode(int wxkey)
 //	case WXK_: return SDLK_COMPOSE;
 
 	case WXK_HELP: return SDLK_HELP;
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	case WXK_PRINT: return SDLK_PRINTSCREEN;
-#else // SDL 1.2
-	case WXK_PRINT: return SDLK_PRINT;
-#endif
 //	case WXK_: return SDLK_SYSREQ;
 //	case WXK_: return SDLK_BREAK;
 	case WXK_MENU: return SDLK_MENU;
diff --git a/source/tools/atlas/GameInterface/Handlers/MiscHandlers.cpp b/source/tools/atlas/GameInterface/Handlers/MiscHandlers.cpp
index 098e93787a..6cb2f89de2 100644
--- a/source/tools/atlas/GameInterface/Handlers/MiscHandlers.cpp
+++ b/source/tools/atlas/GameInterface/Handlers/MiscHandlers.cpp
@@ -196,12 +196,7 @@ MESSAGEHANDLER(GuiKeyEvent)
 {
 	SDL_Event_ ev = { { 0 } };
 	ev.ev.type = msg->pressed ? SDL_KEYDOWN : SDL_KEYUP;
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	ev.ev.key.keysym.sym = (SDL_Keycode)(int)msg->sdlkey;
-#else
-	ev.ev.key.keysym.sym = (SDLKey)(int)msg->sdlkey;
-	ev.ev.key.keysym.unicode = msg->unichar;
-#endif
 	in_dispatch_event(&ev);
 }
 
@@ -213,12 +208,7 @@ MESSAGEHANDLER(GuiCharEvent)
 
 	SDL_Event_ ev = { { 0 } };
 	ev.ev.type = SDL_KEYDOWN;
-#if SDL_VERSION_ATLEAST(2, 0, 0)
 	ev.ev.key.keysym.sym = (SDL_Keycode)(int)msg->sdlkey;
-#else
-	ev.ev.key.keysym.sym = (SDLKey)(int)msg->sdlkey;
-	ev.ev.key.keysym.unicode = msg->unichar;
-#endif
 	in_dispatch_event(&ev);
 
 	ev.ev.type = SDL_KEYUP;