If you like rpgs and are not turned off by the turn-based gameplay, this game has a lot to offer. You create a group of 4 adventures and control the whole party, first person, through the mountain of Grimrock. There are puzzles to solve and enemies to kill. The game is not strong on story but it is interesting; you are simply dumped in the mountain as punishment for your crimes leaving you with hope of survival and finding the exit.
Everything in the main game is predefined, so nothing changes if you decide to play through more than once. It limits the replay but the game is heavy on puzzles which will keep you playing for a while. A level editor is also included which from my brief time with has proven to be very easy to use.
Well worth the money, especially if you can nab it on sale!