Zork 1: The Great Underground Empire
The first part of the bestselling Zork trilogy, and a close descendant of Adventure, the first work of interactive fiction or text adventure game as the genre was known at the time. Zork I was Infocom's first game, and sold 378,987 copies by 1986. Similarly to Adventure, the game unfolds in a maze-like dungeon, where the user (or adventurer) must battle trolls and solve puzzles in order to find twenty trophies to bring back to the house outside which the game begins.
You are standing in an open field west of a white house, with a boarded front door.
There is a small mailbox here.
It is pitch black. You are likely to be eaten by a grue.