Baba Is You

Baba Is You is a puzzle video game created by Finnish indie developer Arvi Teikari (known professionally as Hempuli), released on 13 March 2019 for PC and Nintendo Switch. Mobile versions were released in June 2021. The game centers around the manipulation of "rules"—represented by tiles with words written on them—in order to allow the player character, usually the titular Baba, to reach a specified goal.

The player usually controls a character known as Baba, with exceptions in some levels. Each level contains various movable word tiles, corresponding to specific types of objects and obstacles on the field (such as Baba itself, the goal flag, walls and environmental hazards, and other creatures), linking operators such as "is" and "and", and verb tiles reflecting the properties of these objects (such as "you", which makes the object become controlled by the player, "push" to make them movable, "stop" to make them impassable, "win" to specify the goal, "sink" to make items drown in it, and so on). The objective of each level is for the player to reach the goal by manipulating these tiles to create or modify "rules" by which they behave. For example, the goal can be changed by moving "is" and "win" blocks to another object, and the player can travel through objects by removing the "stop" trait from them.[2] Levels can force specific rules by various methods, such as placing their blocks in a corner, so they cannot be moved.[3] The game contains over 200 levels.[2]