Hexcells is an atmospheric puzzle game by Matthew Brown and released for PC in 2014. It is the first game in the Hexcells series. Gameplay is similar to Minesweeper, with each level containing a grid of hexagonal orange tiles, each hiding either a black or a blue hexagon. It is up to the player to correctly deduce with the information given by the game which hexagons are black and which are blue.

Walgrey solves every single level whilst making no mistakes, thus collecting all 264 hexagons in record time.