LSD: Dream Emulator

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LSD: Dream Emulator is a game about some dude's dreams.  It is a surreal exploration game.  Hiroko Nishikawa kept a dream journal for 10 years (this is real life by the way, not in game).  He kept documents detailing his dreams for 10 years, and decided to put them into a game.  He was an employee at Asmik Ace Entertainment, so he created the game through them.  This game was released for the original PlayStation in Japan on October 22, 1998.  The point of the game is to explore.  You travel through different, weird environments, and you just have to discover.  When you bump into an object in the game, you get transported to a new, weirder place.  Sometimes you can get transported to the same area again, however, you will notice the textures will have changed (as seen above (that is the same room)), and there won't always be the same objects.  The entire environment will change based on what you do, and the game will log what you have done and tell you what dreams you have linked, how many days you have been asleep, and some other relevant information.

To get the full experience of this game, it is best played in the dark and while alone.  For the average human, this could be quite thrilling, as most of the environments are mysterious and freaky.  Even watching someone else play it on YouTube in the dark can be a bit heart-racing.