diff --git a/xwords4/android/XWords4/res/values/common_rsrc.xml b/xwords4/android/XWords4/res/values/common_rsrc.xml
index ed105a95d..f7af55629 100644
--- a/xwords4/android/XWords4/res/values/common_rsrc.xml
+++ b/xwords4/android/XWords4/res/values/common_rsrc.xml
@@ -80,6 +80,7 @@
 
   <string name="key_notagain_sync">key_notagain_sync</string>
   <string name="key_notagain_newselect">key_notagain_newselect</string>
+  <string name="key_notagain_backclears">key_notagain_backclears</string>
   <string name="key_notagain_chat">key_notagain_chat</string>
   <string name="key_notagain_relay">key_notagain_relay</string>
   <string name="key_notagain_hintprev">key_notagain_hintprev</string>
diff --git a/xwords4/android/XWords4/res/values/strings.xml b/xwords4/android/XWords4/res/values/strings.xml
index 9199a8ef1..6a147a98c 100644
--- a/xwords4/android/XWords4/res/values/strings.xml
+++ b/xwords4/android/XWords4/res/values/strings.xml
@@ -2167,6 +2167,10 @@
     then act on selected games, e.g. to delete them, using the menu or
     \"Actionbar.\"</string>
 
+    <string name="not_again_backclears">New feature: The back button
+    now clears any selection instead of exiting. Hit it again to exit
+    the app.</string>
+
     <string name="sel_gamesf">Games: %d"</string>
     <string name="sel_groupsf">Groups: %d"</string>
 </resources>
diff --git a/xwords4/android/XWords4/src/org/eehouse/android/xw4/GamesList.java b/xwords4/android/XWords4/src/org/eehouse/android/xw4/GamesList.java
index 50235adcf..cbac7fb8a 100644
--- a/xwords4/android/XWords4/src/org/eehouse/android/xw4/GamesList.java
+++ b/xwords4/android/XWords4/src/org/eehouse/android/xw4/GamesList.java
@@ -84,13 +84,14 @@ public class GamesList extends XWExpandableListActivity
     private static final String REMATCH_ROWID_EXTRA = "rowid_rm";
     private static final String ALERT_MSG = "alert_msg";
 
-    private static enum GamesActions { NEW_NET_GAME,
-            RESET_GAMES,
-            SYNC_MENU,
-            NEW_FROM,
-            DELETE_GAMES,
-            DELETE_GROUPS,
-            OPEN_GAME
+    private static enum GamesActions { NEW_NET_GAME
+            ,RESET_GAMES
+            ,SYNC_MENU
+            ,NEW_FROM
+            ,DELETE_GAMES
+            ,DELETE_GROUPS
+            ,OPEN_GAME
+            ,CLEAR_SELS
             };
 
     private static final int[] DEBUGITEMS = { 
@@ -616,6 +617,9 @@ public class GamesList extends XWExpandableListActivity
             case OPEN_GAME:
                 doOpenGame( params );
                 break;
+            case CLEAR_SELS:
+                clearSelections();
+                break;
             default:
                 Assert.fail();
             }
@@ -636,7 +640,9 @@ public class GamesList extends XWExpandableListActivity
         if ( 0 == m_selGames.size() && 0 == m_selGroupIDs.size() ) {
             super.onBackPressed();
         } else {
-            clearSelections();
+            showNotAgainDlgThen( R.string.not_again_backclears, 
+                                 R.string.key_notagain_backclears,
+                                 GamesActions.CLEAR_SELS.ordinal() );
         }
     }