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

games/otoca/otoca.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include "games/game.h"
+
+namespace games::otoca {
+
+    class OtocaGame : public games::Game {
+    public:
+        OtocaGame();
+        ~OtocaGame() override;
+
+        virtual void attach() override;
+    };
+}