Shift

In Shift, the player is in a room that is half black, half white, one of which is solid. When the player presses the Shift, the room flips upside down, and the opposite color becomes solid. The player tries to get keys and get to doors while avoiding spikes and other objects. Shift makes a few references in some levels to the popular Valve game Portal, with the phrases 'the timer is a lie!' and 'Now you're thinking with shifting'.

In Shift, Keys are used to move Doors around, which can either serve as platforms or obstacles. Starting in Shift 2, your character(s) would pause once they touched a key. In Shift:Freedom, Keys and Doors were color-coded.

Shift was released February 1, 2008. It was released for iOS on May 1, 2009.

Shift 2 was released March 8, 2008. It was released for iOS on Dec 22, 2010.

The iOS version of Shift was rated 3/4 by Slide to Play, stating "While the iPhone edition of the game has some issues, the mind-bending idea at the core of the experience still captivates."

The iOS version of Shift 2 has a score of 87/100 on Metacritic. Slide to Play rated it 4/4, stating "Shift 2 has the most content of any game in the series on any platform, and it's a great way to spend a dollar."