ANSI by Luke Drelick for his game Overflow, 1996, made in ZZT.
Post updated 2024.
Trailer for the game ALTCODE by FrankieSmileShow (Francis Coulombe), 2011. Uses a custom font for what looks like a standard ASCII character set. The game seems to be unavailable (2024) so we’re making the video available here, just in case:
Rockstar by Wizard Games, 1986.