very polished, wish there was an in game tutorial to show you how to play, always better than in the description! I love these types of games, and I think if you wanted to make it feel more complete, you could add more towers with different attacks, to make you feel like you're really progressing. Theres also no punishment for death, so I would just kill myself whenever I leveled up to buy something. This is one of the best ones I've seen on here, great job!