It's an RPG with strategic elements. The world isn't open, your base acts as a hub. From there you can do several sidequests. Leveling up gives you only 1 attribute point at a time, and 1 skill point. So it isn't very deep. The combat is, however. You use the goblin for stealth and 1-on-1 fights, the orc can be used as a tank and he can take on multiple enemies at a time. The graphics are beautiful and moody and the voice acting isn't all that bad either. The main characters do a great job, though the other characters could use some work at times. Now, it doesn't sound all that exciting, but the game hardly explains anything to you, so you have to figure things out yourself when you start the game. It's a great feeling when you beat bigger groups later on. You learn to use them in your own way; it's not as straightforward as you might think, since there are several ways to use these characters in combat. Also, there's very little loot. Occasionally you'll find a chest or receive an item, but that's it. This is no Diablo or Torchlight. It's a (mostly) story driven game.
That's about it, I think. I'm having way too much fun with it at the moment