Escape!

Escape! (Apple 2)   1978

First 3D personal computer game

Silent game

Gameplay video.

Trivia:
1) The game objective is escaping from a building, which consists of a randomly-generated maze, by navigating from the south-eastern corner to the exit at the north-west.
2) Richard Garriott cites this game as his inspiration for including first-person dungeons in hos game Akalabeth: World of Doom, the predecessor of the Ultima series. (for Ultima games watch Ultima Underworld: The Stygian Abyss (1992).

3) Emulated in: AppleWin