
Chehel Sotoun, Apple II text graphics by krüe.

Exploding Galaxy. Apple II graphics by krüe, 2012.
Three mainstream computer heroes, each rendered in a corresponding font. Jack Tramiel (Commodore), Dennis Ritchie (UNIX) and some guy (Apple). Made by SanderFocus, who also makes great pixel art – more here.
TextFighter, an Apple II-game by Bret Victor, 1994. “A full featured arcade-style fighting game that uses only text characters and runs on any Apple II.”