Underhell is a Half Life 2 Modification developed by Mxthe in collaboration with We Create Stuff. Underhell Prologue requires a Source Engine game to run, and Source SDK Base 2006 installed. Underhell Chapter 1 will require a Source Engine game to run, and Source SDK Base 2007 installed.
This is a Work In Progress of the remake of the Prologue House, with HDR and Randomized Weather Effects.
All the new features will be included in the Chapter 1 House.