diff --git a/android/src/main/java/com/shatteredpixel/shatteredpixeldungeon/android/AndroidGame.java b/android/src/main/java/com/shatteredpixel/shatteredpixeldungeon/android/AndroidGame.java
index ef445a179..487da017a 100644
--- a/android/src/main/java/com/shatteredpixel/shatteredpixeldungeon/android/AndroidGame.java
+++ b/android/src/main/java/com/shatteredpixel/shatteredpixeldungeon/android/AndroidGame.java
@@ -28,6 +28,7 @@ import android.os.Build;
 import android.os.Bundle;
 
 import com.badlogic.gdx.Files;
+import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.backends.android.AndroidApplication;
 import com.badlogic.gdx.backends.android.AndroidApplicationConfiguration;
 import com.shatteredpixel.shatteredpixeldungeon.SPDSettings;
@@ -115,6 +116,38 @@ public class AndroidGame extends AndroidApplication {
 		
 	}
 
+	@Override
+	protected void onResume() {
+		//prevents weird rare cases where the app is running twice
+		if (instance != this){
+			if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+				finishAndRemoveTask();
+			} else {
+				finish();
+			}
+		}
+		super.onResume();
+	}
+
+	@Override
+	protected void onDestroy() {
+		//LibGDX itself doesn't clear these in every case, so we do it ourselves to be sure
+		graphics.clearManagedCaches();
+		audio.dispose();
+		Gdx.app = null;
+		Gdx.input = null;
+		Gdx.audio = null;
+		Gdx.files = null;
+		Gdx.graphics = null;
+		Gdx.net = null;
+
+		if (instance == this) {
+			instance = null;
+			view = null;
+		}
+		super.onDestroy();
+	}
+
 	@Override
 	public void onBackPressed() {
 		//do nothing, game should catch all back presses