HyperRogue is an unusual game, all actions of which take place on the hyperbolic plane using Lobachevsky geometry. Playing as a hero, you will travel the unusual world trying to find valuable treasures. Your main goal is to find the realm of Yendor, finding which game will be completed. HyperRogue is one of the few games in which «unusual geometry» is used, which makes the game not only strange, but also interesting. In addition to various worlds, in the game you will find a bunch of monsters, from which you can not always escape.​