Secrets of Rætikon is an action-adventure, open world video game developed and published by Broken Rules. The player controls a bird and must explore the environment of Rætikon to find its secrets. Game elements include animals with specific behaviors and ancient puzzles. Development began in 2011 and the game was formally announced in July 2013 and followed by alpha and Steam Early Access releases. Rætikon was released on April 17, 2014 for Windows, OS X, and Linux platforms. It received mixed reviews from reviewers, who praised its artwork and movement physics, but criticized its inconsistency, lack of cohesion, and technical issues.