Uurnog features 2D platforming, AI characters (chaotic neutral), algorithmic music that adapts to the game, two endings, character art by Corinne Cadalin, and theme music by D Fast. Uurnog also includes a completely undocumented developer mode (press F12 in the main menu). This includes a level editor and basically the weirdest music software. If anyone actually figures it out and creates a mod, Nifflas promises to release an update with a mod selector in the game's launcher.