Publisher: Asmik Ace Entertainment
LSD was a Japan only PlayStation One release that was supposed to simulate a deep REM cycle dream state. Its main accomplishment was the impressive amount of urine soaked sheets that needed throwing out because of night terrors.
The game is based on the dream journal of one of the developers over the course of 10 years. Fantastic, can we check and see if there were any unsolved serial murders in Japan between 1988-1998? Here's got a pretty solid lead.
LSD had no dialogue and consisted of walking, looking, and clawing the spiders out of the sockets where your eyes used to be. Each time the game is played, you begin in a new location. No explanation. Just go explore the terrorscape of some guy's fraying consciousness.