Richard Garriott emailed this image to the Ultima Codex in November of 2015. It’s a scan of a printout of some of the code for Ultima 1 (printed on tractor feed paper), with some hand-written debugging notes.

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A few people have been able to reverse engineer the BASIC code out of the original Ultima 1 game data files; I wonder how closely the code here aligns with what made it into the final game?

As always, the Ultima Codex is grateful to Richard Garriott for sharing this glimpse into the development history of the Ultima series.