It’s been so long since we first previewed this game that we’d almost given up on it seeing the light of day. Delay after delay blighted what always looked to be one of the more interesting shooters to hit the shelves for a while, but Raven Software soldiered on and did their best to ensure that we actually got a decent game. In fact the end result was far more than just a decent game; it’s our favourite shooter so far this year. Think Half Life 2 meets BioShock and you’ll have a rough idea of what to expect here. Its single player campaign is a story driven affair, and while it doesn’t provide any twists of the calibre of BioShock, it does offer a fairly strong and enjoyable narrative even if some of the voice acting is a bit rubbish. The time-warping aspect of the game brings fresh breath to an increasingly tired FPS genre, and the Time Manipulation Device (TMD) adds a whole new dimension to gameplay… literally. You can age or renew objects in your environment as well as enemies, or shoot energy pulses as well as use regular weapons, and the gravity gun feature makes for some particularly interesting puzzles along the way. The multiplayer side of things is oddly limited with few options beyond choosing whether you’d like to be human or a mutant, but it’ll add some more play time once you’re done with the campaign.