diff --git a/binaries/system/readme.txt b/binaries/system/readme.txt
index d92c56d925..d6234632ac 100644
--- a/binaries/system/readme.txt
+++ b/binaries/system/readme.txt
@@ -3,7 +3,7 @@ COMMAND LINE OPTIONS
 Basic gameplay:
 -autostart=...		load a map instead of showing main menu (see below)
 -editor				launch the Atlas scenario editor
--mod NAME			start the game using NAME mod
+-mod=NAME			start the game using NAME mod
 -quickstart			load faster (disables audio and some system info logging)
 
 Autostart:
@@ -67,6 +67,7 @@ Windows-specific:
 
 Archive builder:
 -archivebuild=PATH				system PATH of the base directory containing mod data to be archived/precached
+								specify all mods it depends on with -mod=NAME
 -archivebuild-output=PATH		system PATH to output of the resulting .zip archive (use with archivebuild)
 -archivebuild-compress			enable deflate compression in the .zip
 								(no zip compression by default since it hurts compression of release packages)
diff --git a/source/main.cpp b/source/main.cpp
index f8458b3302..db8feca3f5 100644
--- a/source/main.cpp
+++ b/source/main.cpp
@@ -1,4 +1,4 @@
-/* Copyright (C) 2013 Wildfire Games.
+/* Copyright (C) 2014 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -461,6 +461,13 @@ static void RunGameOrAtlas(int argc, const char* argv[])
 			zip = mod.Filename().ChangeExtension(L".zip");
 
 		CArchiveBuilder builder(mod, paths.Cache());
+
+		// Add mods provided on the command line
+		// NOTE: We do not handle mods in the user mod path here
+		std::vector<CStr> mods = args.GetMultiple("mod");
+		for (size_t i = 0; i < mods.size(); ++i)
+			builder.AddBaseMod(paths.RData()/"mods"/mods[i]);
+
 		builder.Build(zip, args.Has("archivebuild-compress"));
 
 		CXeromyces::Terminate();
diff --git a/source/ps/ArchiveBuilder.cpp b/source/ps/ArchiveBuilder.cpp
index c21f5b44eb..f9525d8124 100644
--- a/source/ps/ArchiveBuilder.cpp
+++ b/source/ps/ArchiveBuilder.cpp
@@ -1,4 +1,4 @@
-/* Copyright (C) 2012 Wildfire Games.
+/* Copyright (C) 2014 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -34,7 +34,7 @@
 #include <boost/algorithm/string.hpp>
 
 CArchiveBuilder::CArchiveBuilder(const OsPath& mod, const OsPath& tempdir) :
-	m_TempDir(tempdir)
+	m_TempDir(tempdir), m_NumBaseMods(0)
 {
 	m_VFS = CreateVfs(20*MiB);
 
@@ -42,7 +42,8 @@ CArchiveBuilder::CArchiveBuilder(const OsPath& mod, const OsPath& tempdir) :
 
 	m_VFS->Mount(L"cache/", m_TempDir/"_archivecache"/"");
 
-	m_VFS->Mount(L"", mod/"", VFS_MOUNT_MUST_EXIST | VFS_MOUNT_KEEP_DELETED);
+	// Mount with highest priority so base mods do not overwrite files in this mod
+	m_VFS->Mount(L"", mod/"", VFS_MOUNT_MUST_EXIST | VFS_MOUNT_KEEP_DELETED, (size_t)-1);
 
 	// Collect the list of files before loading any base mods
 	vfs::ForEachFile(m_VFS, L"", &CollectFileCB, (uintptr_t)static_cast<void*>(this), 0, vfs::DIR_RECURSIVE);
@@ -57,7 +58,9 @@ CArchiveBuilder::~CArchiveBuilder()
 
 void CArchiveBuilder::AddBaseMod(const OsPath& mod)
 {
-	m_VFS->Mount(L"", mod/"", VFS_MOUNT_MUST_EXIST);
+	// Increase priority for each additional base mod, so that the
+	// mods are mounted in the same way as when starting the game.
+	m_VFS->Mount(L"", mod/"", VFS_MOUNT_MUST_EXIST, ++m_NumBaseMods);
 }
 
 void CArchiveBuilder::Build(const OsPath& archive, bool compress)
diff --git a/source/ps/ArchiveBuilder.h b/source/ps/ArchiveBuilder.h
index e51f9b5aa8..3e578e6345 100644
--- a/source/ps/ArchiveBuilder.h
+++ b/source/ps/ArchiveBuilder.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2010 Wildfire Games.
+/* Copyright (C) 2014 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -43,6 +43,7 @@ public:
 	/**
 	 * Add a mod which will be loaded but not archived, to provide
 	 * files like textures.xml needed for the conversion.
+	 * Added mods will be mounted with increasing priority.
 	 * Typically this will be called with 'public', when packaging
 	 * a user's mod.
 	 * @param mod path to data/mods/foo directory, containing files for loading
@@ -62,6 +63,7 @@ private:
 	PIVFS m_VFS;
 	std::vector<VfsPath> m_Files;
 	OsPath m_TempDir;
+	size_t m_NumBaseMods;
 };
 
 #endif // INCLUDED_ARCHIVEBUILDER