diff --git a/engines/kingdom/kingdom.cpp b/engines/kingdom/kingdom.cpp
index aca893bb913..9f850d62adb 100644
--- a/engines/kingdom/kingdom.cpp
+++ b/engines/kingdom/kingdom.cpp
@@ -142,6 +142,8 @@ void KingdomGame::initVariables() {
 }
 
 KingdomGame::~KingdomGame() {
+	_mixer->stopAll();
+
 	unloadKingArt();
 
 	delete[] _asPtr;
@@ -149,6 +151,11 @@ KingdomGame::~KingdomGame() {
 	delete _rnd;
 }
 
+bool KingdomGame::hasFeature(EngineFeature f) const {
+	return
+		f == kSupportsReturnToLauncher;
+}
+
 bool KingdomGame::isDemo() const {
 	return (bool)(_gameDescription->flags & ADGF_DEMO);
 }
diff --git a/engines/kingdom/kingdom.h b/engines/kingdom/kingdom.h
index 37ea2f7ac8b..83160cf879d 100644
--- a/engines/kingdom/kingdom.h
+++ b/engines/kingdom/kingdom.h
@@ -89,9 +89,10 @@ namespace Kingdom {
 	class KingdomGame : public Engine {
 	public:
 		KingdomGame(OSystem *syst, const ADGameDescription *gameDesc);
-		~KingdomGame();
+		~KingdomGame() override;
 
-		virtual Common::Error run();
+		bool hasFeature(EngineFeature f) const override;
+		Common::Error run() override;
 
 		// Detection related functions
 		const ADGameDescription *_gameDescription;
@@ -229,8 +230,8 @@ namespace Kingdom {
 		void cursorTypeExit();
 		void saveGame();
 		void restoreGame();
-		virtual Common::Error loadGameState(int slot);
-		virtual Common::Error saveGameState(int slot, const Common::String &desc, bool isAutosave = false);
+		Common::Error loadGameState(int slot) override;
+		Common::Error saveGameState(int slot, const Common::String &desc, bool isAutosave = false) override;
 		Common::String getSavegameFilename(int slot);
 		void writeSavegameHeader(Common::OutSaveFile *out, KingdomSavegameHeader &header);
 		void synchronize(Common::Serializer &s);