Comparing it to Civ 4..

[WonderLlama]

Incursion is a roguelike that is heavily based on D&D. It's more about creating and powering up your character than most roguelikes. It has a very complete D&D character system, with over a hundred feats fully implemented, and I'd guess 20ish skills. Somehow the developer found a way to make almost every skill useful in a dungeon crawl too. It also has birth perks that make a very big difference to the character. One of my favorites is clairvoyance, which lets you peak around the nearby dungeon for free at any time. But there are lots, and many are very nice. The religion system is similar to many roguelikes, but I find that it is more fun in incursion because of the way the god granted abilities can complement the already complex characters. The god favor/conduct system is very cool, although last I played, it had a lot of tweaking and bugfixing left to do.

The dungeon is fairly typical roguelike. Probably the coolest unusual feature is all the detail that has gone into non-hostile creatures. You can attempt to trade with and recruit almost all of them. Which is especially nice when they pick something up that you want; you have the option of demanding it or buying from them instead of killing them. I don't think anyone will ever write an NPC system that eliminates annoyance completely, but this one is relatively good.

I'd say if you like complex character design and random dungeon crawls, you'll like this game.