HyperRogue is a unique emergency strategy, the main purpose of which is to travel to a foreign world and find a unique artifact called the Yander Territory. However, you can break from the main task and travel to collect all sorts of items or parts, of course, for fear of all sorts of enemies. The game implements different worlds, each of which is unique.
However, the main characteristic of HyperRogue is the unique realization of the world, built on a hyperbolic level, which includes six other heptagons. However, the Euclidean system of geometry was used, i.e., the sum of all the angles of a triangle is always less than 180 degrees. In such a world it is very difficult to come back twice or stay in one place. And the development of events is always based on your decisions.