Zero X is a Keen 4 mod by Zero X. Diamond. The project never made it far enough to receive an official name, but the development folder was given the odd name of "Glfurlto." A demo was released for Andrew Durdin's Keen 4 Mini Mod contest, in which it won third place. It is now considered abandoned.
The Mod is about the adventures of Aillen O'Riordan as he struggles to rescue the beautiful Faelicia from the evil sorceror Atroxus.
Creatures and other modifications
Commander Keen replacement
Council Member replacement
Princess Lindsey replacement
Poison Slug replacement