The following versions of the game would be available on disc: Issues 0, 2, 3, 6, 7, 14, and 18. I personally also kept snapshots of the pigg files at issues 11, 16, 20, 21, 22, and 23. Between those two lists, I'm missing issues 1, 4, 5, 8, 9, 10, 12, 13, 15, 17, and 19. I know Codewalker kept some versions archived, but we've never compared lists so I don't know what's actually not available.