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. Underhell is split in 3 different zones. The first is "The House". Each new chapter will have its own version of The House with different puzzles, mysteries to discover, and diary pages of Jake's late wife to be found. The second is "The Dreams". With each new version of The House will come a set of dreams. They can be accessed by sleeping in the bed during the night. Dreams will give you bits of information about the story. They are very different from the rest of the game in both their narrative and gameplay, and focus mostly on exploration and solving puzzles. The Dreams are not bound by earthly rules and have a few twists to them that will challenge the player. The third is "The Chapters" where the main storyline of Underhell takes place. You can access a chapter from The House, and when it is completed, you are sent back to The House. Less