What The Witness?

What The Witness? is a fan game of The Witness (2016) that features custom puzzle mechanics. Most mechanics/puzzle sets are created and shared by game fans, and we collected them in this game. The game is also open-sourced on Github. The Witness (2016) is a logic puzzle game by Jonathan Blow et al. from Thekla, Inc. featuring line drawing puzzles on grids with various rules.  Spoiler Warning: What…