Raiders (and Skeletons, who also dwell in the Ruined City) cannot be harmed with mundane weapons, but each of the five colors has its own movement restrictions. Choose a path that gives you an advantage to run away from them! (Hyperbolic geometry will help, of course!)
Thanks to Fulgur14, Patashu, tehora, and tricosahedron for their ideas for new lands, themes, and features. Android and iOS versions should be updated soon. This version also includes many minor bugfixes and interface improvements; the full changelog is on Steam forums or the website.
Follow the newly created HyperRogue page on Facebook and @ZenoRogue on Twitter. Get HyperRogue 10.3 on Steam and itch.io, and have fun!