TempleOS, a game by Terry A. Davis. Terry died about 10 months ago sadly and wrote TempleOS with his own language of code. The surprising bit is that his own programming actually works correctly! I, as a programmer, do not understand his language of code but am very impressed and amazed by how far he's come and how advanced he is. The games he's made are very entertaining but have no plot some of them. The weird part is that some of the games give hints on how he d13d. Was this made on purpose ?