If Bioshock, Half-Life 2 and Portal had a baby. In some ways it seems like a formulaic cash in, but the story and setting (time travel in Russia) were unique and cool enough that I was really invested in it to the end. There are some neat puzzles, the gun play is satisfying, and the TMD device's powers are fun to mess around with. The early levels can be frustrating because of limited ammo and firepower, but soon you power up enough that it's no longer an issue. Overall a fun time and a game I'm really glad I played.