Toy obtained a Macintosh and took the lead in porting the game to that system. Both Toy and Lane recognized that they could implement improved graphics with the Macintosh version, but neither had art skills to make the icons. Toy reached out to Wichman to help with these graphics. Wichman was initially cautious due to the fact that his credit for "Rogue" in the PC version had been cast as a "contribution" equal to the UCSC playtesters rather than as equal to Toy, Arnold, or Lane. However, he agreed to help and joined A.I. Design. Much of the Macintosh version was developed in concert by Toy, Wichman, and Lane in a cabin at the Squaw Valley Ski Resort. Following this, Epyx requested that Wichman lead the development of the Atari ST version, with the company providing Wichman a system to work on. This work occurred alongside Toy's work on the Amiga version. Wichman enlisted help from an Epyx in-house artist, Michael Kosaka, to create the art on the Atari ST version. Epyx would also fund A.I. Design to port the game to other systems including the TRS-80 Color.