Sokyokuban is a variation of Sokoban, an iconic Japanese puzzle game from 1982. Rather than using the normal square tiling, Sokyokuban takes place on a hyperbolic plane. 双曲番 (sōkyoku-ban) is a pun on hyperbolic (双曲, sōkyoku) and Sokoban (倉庫番, sōko-ban)...

We wanted the hyperbolic geometry to be an integral part of the game rather than just a gimmick. One of the most interesting aspects is holonomy: in this case, the fact that moving in straight lines can result in rotations. After playing with different ways to integrate this into Sokoban, we settled on giving the boxes and targets an orientation.