10. Enter the Gungeon
Copies Sold: 419,000
Metacritic Rating: 83
Enter the Gungeon is classified as a bullet hell dungeon crawler which you have to survive numerous levels of enemies, bullets, dodge rolling, table flipping, and shooting. The game really goes over-the-top, giving players access to numerous types of guns for all out madness. The game features numerous bosses, items, NPCs, traps, and a lot of unforgiving moments.