Order of the Sinking Star is an upcoming puzzle video game developed by Thekla, Inc. and published by Arc Games. It is the third game directed by Jonathan Blow after Braid (2008) and The Witness (2016). It was developed using Jai, a programming language developed in-house by Blow and his studio. The game is scheduled for release on Windows, Nintendo Switch 2 and PlayStation 5 on October 8, 2026.