7 games
82The Oregon Trail
1971 · Apple II, Atari 8-bit +4
Minnesota Educational Computing Consortium
82The Oregon Trail
1971 · Apple II, CDC Cyber 70
MECC
Nintendo exclusive82The Oregon Trail
1971 · CDC Cyber 70, Wii
MECC
Nintendo exclusive82The Oregon Trail
1971 · CDC Cyber 70, Nintendo 3DS
MECC
47Star Trek (text game)
1971 · Legacy Computer, Linux +4

Empire
1972 · HP 3000, Linux +3
Peter Langston

Trek73
1973 · Linux, MS-DOS +1