Colossal Cave is an adventure game that predates its own genre and arguably everything we know as 'the rules' of modern game design. It began life as 700 lines of code on a PDP-10 mainframe computer in the 1970s, eventually making its way to IBM and Apple home computers by the early '80s as a 'launch title' for IBM's initial line of PCs. Now it's getting a second life as a fully realised 3D experience thanks to Ken and Roberta Williams, who credit Colossal Cave with inspiring the launch of their company, Sierra.
"I honestly believe, had I never played it, I don't know what I'd be doing today. I don't know what Ken would be doing," Roberta Williams tells PCGamesN.
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