Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.The Reaper bot is a weak AI expert system computer software program, created in the form of a modification or "addon" to the computer game Quake, the program was created by Steven Polge and written in QuakeC. Released on November 15, 1996. The program is a Computer game bot and thus allows the human player to face the computer in a game of deathmatch in Quake -- whereas this option is only possible with other human players in the stock product. The Reaper bot is highly notable in both artificial intelligence in general, community created game content, computer game bots and especially for Quake, due to i.a. its ability to learn arbitrary maps through machine learning and thus it represented a major breakthrough in bot AI.