diff --git a/build/resources/0ad.appdata.xml b/build/resources/0ad.appdata.xml
index 0433116531..5f7eba4ab3 100644
--- a/build/resources/0ad.appdata.xml
+++ b/build/resources/0ad.appdata.xml
@@ -27,4 +27,26 @@
     <screenshot>http://play0ad.com/wp-content/gallery/screenshots/athenian_gymnasion.jpg</screenshot>
   </screenshots>
   <updatecontact>webmaster@wildfiregames.com</updatecontact>
+  <content_rating type="oars-1.0">
+    <content_attribute id="violence-cartoon">none</content_attribute>
+    <content_attribute id="violence-fantasy">none</content_attribute>
+    <content_attribute id="violence-realistic">intense</content_attribute>
+    <content_attribute id="violence-bloodshed">moderate</content_attribute>
+    <content_attribute id="violence-sexual">none</content_attribute>
+    <content_attribute id="drugs-alcohol">none</content_attribute>
+    <content_attribute id="drugs-narcotics">none</content_attribute>
+    <content_attribute id="drugs-tobacco">none</content_attribute>
+    <content_attribute id="sex-nudity">none</content_attribute>
+    <content_attribute id="sex-themes">none</content_attribute>
+    <content_attribute id="language-profanity">none</content_attribute>
+    <content_attribute id="language-humor">none</content_attribute>
+    <content_attribute id="language-discrimination">none</content_attribute>
+    <content_attribute id="social-chat">intense</content_attribute>
+    <content_attribute id="social-info">intense</content_attribute>
+    <content_attribute id="social-audio">none</content_attribute>
+    <content_attribute id="social-location">none</content_attribute>
+    <content_attribute id="social-contacts">none</content_attribute>
+    <content_attribute id="money-purchasing">none</content_attribute>
+    <content_attribute id="money-gambling">none</content_attribute>
+  </content_rating>
 </application>