Crypt is a dungeon crawler, but with a twist. That twist being moving to the beat of awesome electronic music by the amazing Danny Brananowsky (Who also worked on Binding of Issac's and Super Meat Boy's music, so have high expectations.)
...No literally, you MOVE to the beat. So do the monsters. That's what I like about this game, you got to keep with the rhythm of the game while you're simultaniously exploring the cave and seeing what you can get. It's two genres I couldn't think be combined, but it works beautifully. You have entities like health, and item slots for armor and weapon and magic, etc. However, the whole gameplay is composed of moving around to the soundtrack.
It's exciting keeping your mind on two things at once, and mastering it in the end. Enemies all have their own movement patterns according to the music, so you're not the only one that has to deal with the beat. I must admit it's very exhilirating to learn every little bit of enemy movement, and gracefully going through the dungeon with the head bopping tunes in your head.
However, if you wanna add your own music to the mix, you can! Any MP3 file you have can be implimented in the game. Experiment, and see what you get.
Overall, this game is tons of fun, and is looking to be one of my favorite indie games out there. I'm not even that big a fan of dungeon crawlers, but I'm a sucker for rhythm games. I HIGHLY recommend this to anyone looking for a good, repetitive time.