Adventureland

A game of historical significance: originally written in TRS-80 BASIC, this was the first adventure game to be widely available on microcomputers. It's a minimalist treasure hunt set in and around a cave - an imitation of Colossal Cave, only without the prose. Good sense of freedom, somewhat eccentric design, two-word parser (except the Inform port), magic words, a maze, and a limited light source.

-- Carl Muckenhoupt