HyperRogue

HyperRogue is a game about exploring a strange, non-Euclidean world as a lone adventurer. You gather treasure while avoiding monsters, and can pursue the legendary Orbs of Yendor: collect one to win, or ignore the quest and seek smaller treasures instead.

Lands and treasures

The world contains about 60 different lands, each with its own treasures, enemies and terrain obstacles. Its geometry affects how you explore: the game takes place on a hyperbolic plane, with a grid of hexagons and heptagons. Straight lines that appear parallel diverge without meeting, and triangles have angles that add up to less than 180 degrees. The world is practically infinite, with centillions of locations within 700 steps of the starting point, making it extremely unlikely to return to the same place. When you do return, the world seems rotated.

Experimental modes

Alongside the original 2D hyperbolic puzzle roguetime game, HyperRogue includes experimental modes that let you change many aspects of the game for non-Euclidean experimentation. These include a racing mode, a real-time "shmup" mode, 3D geometries including Thurston geometries, and SteamVR virtual reality. You can also play it as a non-Euclidean first-person shooter.