The goal of Pathology is simple. Get to the exit in the least number of moves. Pathology is a grid-based block pushing puzzle game focused on optimization.
Gestalt_OS is a cryptic logic processing program designed for aliens. You must decipher the interactions between symbols to create special patterns to progress.
(Mod for Portal 2) Cosmogony is a 6 part map pack created by DRey taking place during GLaDOS activation in the Enrichment Center. You are some of the few survivors of the neurotoxin disaster and with some help, you try to find a way out of Aperture. The map pack features custom content, a story deeply immersed in the Portal and Half-Life universe and more.