Underhell is a Source Engine game developed by the Underhell Team in collaboration with We Create Stuff. Underhell Chapter 1 requires ONLY Source SDK Base 2007 installed. No Source game is required.
Amazing overhaul of the Source engine, not 'just another HL2 clone'. Game has a refreshing a new twist uncommon in many Source mods these days. Everything is different, voice acting, battlechatter, weapons, noises, new game mechanics, particle effects and AI have all had an overhaul just to name a few. Soundtrack is very professional and extremely identifiable; the single best i have ever heard from a not-for-profit mod. Eagerly awaiting the first chapter, with a prologue as grand as this, it has a lot to live up to.