Ori and the Blind Forest is a platform-adventure Metroidvania video game developed by Moon Studios and published by Microsoft Studios. The game was released for Microsoft Windows and Xbox One on March 2015. In the game, players assume control of Ori, a white guardian spirit, and Sein, the "light and eyes" of the Forest's Spirit Tree. To progress in the game, players are tasked to move between platforms and solve puzzles. The game features a system called "soul links", which allows players to save at will, and an upgrade system that gives players the ability to strengthen Ori's skills.