Atari didn&#x27;t have source control. AFAIK, it just didn&#x27;t exist. The VAX or DG mini that most people used for cross-development was <i>probably</i> being backed up at least weekly, but if you accidentally wiped out something important, like all of your source code, you were likely hosed.<p>On a project like this, adding people to it <i>will</i> make it later. The 2600 is a different beast from something that you can divide-and-conquer using APIs and so forth. A typical commercial 2600 game is a holistic, byte-shaved monster piece of spaghetti code, full of tricky timing and other traps. Hard to imagine that any collaboration would have resulted in a better game.