I really like this kind of genre—I guess you'd call them "3D upgrade-style games"? I love that feeling of getting stronger as you keep upgrading. If I were to offer one piece of advice, though: it would be great if you could long-press on an upgrade to see the details of what it actually does.Feel free to check out other titles, too—and don't forget to leave a comment and cast a vote (at least five of them)!