The Fallout 1 and 2 source code, once thought lost, was preserved and rediscovered thanks to Interplay’s founder.
The Fallout Source Code Mystery
If you’re a fan of classic RPGs, you might recall the shocking news that the original source code for Fallout 1 and Fallout 2 was believed to be lost forever. Tim Cain, the mastermind behind the Fallout series, shared on his YouTube channel that the code had been destroyed by order of the publisher, Interplay.
“When I left the project, I was told to destroy all materials. And I did. My entire archive, early design notes, code versions, prototypes, the whole GURPS code… everything was gone.”
– Tim Cain

How the Code Was Actually Saved
Contrary to Cain’s belief, Rebecca Heineman, the founder of Interplay Productions and a renowned game designer, revealed in an interview with VideoGamer that she had preserved the source code not only for Fallout 1 and Fallout 2 but also for other Interplay games.
During her work on the Interplay’s 10 Year Anthology: Classic Collection, a compilation of the company’s titles from 1983 to 1993, she began archiving the code diligently.
“I have the source code for all my projects, so most games worked out fine on the CDs. But Wasteland was trickier — someone else ported it to PC. When I asked for the source, I got blank stares. I had to go to the COO, who handed me a battered box of floppy disks. Eventually, I contacted friends at Electronic Arts to get a copy of the code we sent them when releasing Wasteland.”
– Rebecca Heineman

She took it upon herself to create snapshots and archive everything onto CD-ROMs. By the time she left Interplay in 1995, she had copies of every game the company produced, without exception. Later, while working at MacPlay, she continued to archive everything they ported—including Fallout 1 and 2.
Why Did Tim Cain Think the Code Was Lost?
Rebecca explains that Interplay’s tricky relationship with departing employees caused confusion about the code’s whereabouts.
“Interplay had a problem with people leaving. If someone quit, they got angry. I was one of the founders, so when I left, I took EVERYTHING with me. Interplay was known for threatening lawsuits against former employees if they ‘poached’ staff or took materials home. But legally, they had no grounds, so it never went to court. If they had, I would’ve been sued last week.”
– Rebecca Heineman
Plans for the Future
Rebecca Heineman also mentioned her intention to find a way to release the Fallout 1 and 2 source code online when she gets some free time, which would thrill fans and developers alike.
This revelation breathes new life into the legacy of Fallout’s origins and preserves an important piece of gaming history.
Conclusion
Isn’t it amazing how close we came to losing some of the most iconic games’ source code forever? Thanks to Rebecca Heineman’s dedication, the Fallout legacy is safe and might soon be shared with the world. What classic game source code would you love to see preserved or released next?
Frequently Asked Questions
- What happened to the Fallout 1 and 2 source code originally?
It was believed to have been destroyed by order of Interplay, as stated by Tim Cain. - Who actually preserved the Fallout source code?
Rebecca Heineman, Interplay’s founder, archived the source code along with other games. - Why was there confusion about the source code’s existence?
Interplay had a hostile attitude toward departing employees, leading to misinformation. - Will the Fallout 1 and 2 source code be publicly released?
Rebecca plans to publish it online once she has the time. - What is Interplay’s 10 Year Anthology: Classic Collection?
A CD-ROM compilation of Interplay’s classic games from 1983 to 1993, used to archive source codes.
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