Let us start here, from square one. No, from Zero!

games/rb/rb.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include "games/game.h"
+
+namespace games::rb {
+
+    class RBGame : public games::Game {
+    public:
+        RBGame();
+        virtual void attach();
+        virtual void detach();
+    };
+}