Baba Is You is a puzzle game developed by Finnish game developer Arvi Teikari, where the player controls the character Baba, a white rabbit-like creature, in order to move and manipulate the game's rules to solve puzzles. The game is set in a 2D world, and the main goal is to reach a flag that signifies the end of a level.

The unique aspect of Baba Is You is that the rules of the game are themselves part of the puzzle, and can be modified by the player by pushing words around on the screen to change how the game is played. For example, the player can change the rule "Wall is Stop" to "Wall is Push", which allows Baba to push through walls instead of being stopped by them.

The game has more than 200 levels, with each level featuring different rules that the player must use to complete it. The difficulty of the game increases as the player progresses through the levels, with new rules and challenges added to each new level.

The game has been praised for its creativity, unique gameplay, and challenging puzzles. It has won several awards, including the Excellence in Design award at the Independent Games Festival in 2018.