Play Zork!

Chris DavisFun Things To Do

While not developed specifically for the Altair 8800, Zork was created for many operating systems including CP/M, which runs on the Altair.

MicroSD Card with Altair disk images (available here.)
Terminal software (Putty is highly recommended.)

Play Zork

Written by: Infocom (Dave Lebling, Marc Blank, Tim Anderson)
When: Zork I (1980), Zork II (1981), Zork III (1982)


  1. Stop whatever the Altair is doing – raise “Stop”, then raise “Reset”.
  2. Mount emulated disk 8 in drive 0 – switch 12 up, switch 3 up (all other switches down).
  3. AUX2 down to load disk.
    Terminal will say “[mounted disk ‘DISK08.DSK: Zork (CP/M game)’ in drive 0]”
  4. To run bootable disk – switch 3 up (all others down).
  5. AUX1 down. This will install the Disk Boot ROM and boot disk 0.
    Terminal will load CP/M and show command prompt “A>”
  6. Type ZORK1, ZORK2, or ZORK3.