I had a ton of fun with this one so far: It gives you a lot of freedom to learn about the mechanics, but without being so opaque that you have to stumble forever. There's a very classical feel to it in terms of both roguelike mechanics and old-school... I'm not sure if there's a word for them. Robotron-esques? Space Dungeons? It's got both genres down pat in a compact package, and while I don't have every unlock at time of commenting (still missing two unknown classes) I like the game a lot.