Perpetual Testing Initiative

The Perpetual Testing Initiative is a gamemode and campaign which introduces the concept of multiple alternate universes, simply shortened as "the multiverse". Set entirely on testing chambers created by the Portal 2 community on the Steam Workshop, the player once again has to fulfill the role of test subject - this time as silent stick figure Bendy.

Also introduced in the Perpetual Testing Initiative is a simplistic in-game testing chamber editor, the Puzzle Creator.