Colossal Cave Adventure (often called Colossal Cave or Adventure) was the first adventure game and inspired all the adventures that came after it.
Drawing on his experiences playing Dungeons and Dragons and as a caver, Willie Crowther decided to create a game based on exploring Mammoth Cave in Kentucky to entertain his daughters, whom he was missing after his divorce. It was written in Fortran on a PDP-10; there were about 700 lines each of code and data.
In 1976, Don Woods found the program on a computer at the Stanford Artificial Intelligence Lab and, after getting permission from Crowther, he expanded the program. Jim Gillogly (Rand Corporation) and Walt Bilofsky, founder of The Software Toolworks (later Mindscape), adapted the code for Heathkit and IBM personal computers and marketed it as "The Original Adventure," paying Crowther and Woods a small royalty after they endorsed it as the "official" version. Players who completed the game received a secret code which they could send to the company and receive a "Certificate of Wizardness."
On display: Printout of original Fortran source code and data, printed on a 9-pin dot matrix printer (running under Windows 7).
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