Dredmor is a lot of fun, the skill trees you can choose provide some really interesting combinations. Some are more useful, some are funny, and some are pretty useless for a while, but they all add to the experience.
It's not a game that takes itself too seriously, though, there is a lot of humor in the game and the game itself is meant to kill you, so keep that in mind. Unlike other roguelikes, you do have the option to save and load, though. You also have the option to have smaller floors but with the same experience per floor, making some of the game sessions go faster.
I wouldn't say the game allows you to grind, though. It's a floor by floor progression, similar to a number of other RLs. I don't think grinding really fits in the RL genre, but RL is a phrase used to describe everything these days, so it's hard to tell.
I've also really enjoyed SotS: The Pit, recently released here. I find it along very similar lines as DoD, but the scifi atmosphere is cool. I like SotS because the play sessions are shorter (I die faster), the levels get larger as you go on, and you have more weapon options. The biggest downside is just that, the levels are shorter and you don't have a lot of cool skill combinations like you do with DoD. I like the visual presentation of SotS better than DoD as well.
ToME is fun, the social aspects make it interesting. It's also free and open source, which is nice. I haven't played it extensively, but did enjoy the time I spent with it.
I'll probably get flamed for this, but I -REALLY- wish a decent graphic RL would come out for the iPad. I keep hoping DoD, SotS: The Pit, or ToME will announce development for mobile devices, but it never seems to happen. I know DoD has a port in progress, but it's been stalled to work on Clockwork, SotS didn't meet it's funding goal, and ToME is written in LUA, which I don't think Apple will approve in the App Store.
I find all these games would be great with touch interfaces and I'd be able to play them more, so it makes me sad it doesn't appear to be happening. I'm open to recommendations of others, though :)
Post edited April 23, 2013 by Shinook