I thought that it would be interesting to create something even more different. Hyperbolic Rogue is set on a hyperbolic plane, and the map is composed of hexagons and heptagons.
Another interesting feature of Hyperbolic Rogue is heat. Your body generates heat, which attracts ice wolves and melts down ice walls.
I wanted to wait with this for the 7DRL challenge, but could not resist the temptation and wrote it right away (in 5 days).