If you're a fan of creature collecting and in-depth RPG mechanics, I've got a game for you: Siralim Ultimate, the latest release in the indie RPG series of monster collecting and combining games. It's all about building up a party of powerful monsters, combining the best into other, more powerful monsters, throwing them into 6v6 monster battles, and using them to clear not just a main story but bojillions of procedurally generated dungeons.
Read more on pcgamer.com