Sierra On-Line’s Space Quest II 720KB floppy disks contain hidden treasure- 70% of the AGI interpreter source code! This code was accidentally copied onto production disks for versions 2.0D and 2.0F. Discovered in 2016, this discovery offers a peek into Sierra’s development process. This mishap could have had serious consequences had it been noticed at the time, but fortunately went unnoticed until now. The source code has been uploaded to GitHub for those interested in exploring Sierra On-Line’s digital history. This fascinating discovery sheds light on the inner workings of one of the pioneering companies in video game development.
https://lanceewing.github.io/blog/sierra/agi/sq2/2024/05/22/do-you-own-this-space-quest-2-disk.html