Jonathan Blow, of Braid for those who have been living under a rock these past few years, has released the first gameplay trailer of his latest project - The Witness. From the video, it looks to be a puzzle/exploration game set in a varied and remarkably beautiful world, which also seems to be completely uninhabited. According to the website, it's due for release sometime this year. It will be a timed PS4 exclusive but eventually it will come to PC and iOS too. And it looks like something worth keeping track of in the meantime.