It's free and fun, it's Brogue. I haven't beaten it yet, but I'm enjoying it. The terrain is pretty easy to understand, for ASCII graphics, the items are interesting, varied, and fairly intuitive to use. I'm reeeeeally beating myself up about failing hard at my first playthrough. I had THREE STAVES by the 3rd floor. I didn't even try one of them out. I used two scrolls of identify on my OTHER gear instead of learning the exact stats and limitations of my staves. (I didn't know staves were rechargeable though). I haven't had such good luck since - I die on floor 5 to 7 often without having found ANY staves. Oh to try that game again! What have your experiences been with it?