Timeshift takes the first-person shooter to an entirely different dimension marked by erratic time and unrelenting action.

Players take on the role of Colonel Michael Swift, a renowned and recently retired test pilot, who has accepted an offer from the US Government to test out two of the most significant inventions of the century. Armed with a time-control device called the Quantum Suit and a time machine called the Chronomicon, Swift is briefly sent back in time to plant an experimental probe. Upon his return to the present, a major shift has occurred.

The world he left has changed beyond all recognition. And his intimate knowledge of the true time stream has made him an enemy of the state. Swift is both on the run and on a mission to set time straight once again.