Jordan Mechner, the creator of the Prince of Persia series, hasn't had his hands on the source code to the original game for over a decade. Why? Because it had been sitting hidden in his dad's closet, that's why.
Mechner recently got a call from his dad to tell him that, after cleaning out a closet in the family home, he stuffed the remains in a box. Inside the box were some 3.5″ Apple ProDOS disks, containing the original source code for one of the most important video games of all time.
With the disks back in his possession, Mechner is now working on converting the code into something modern systems can actually understand. Once that's done, he says "as soon as we can extract something usable, I'll post it here".
Prince of Persia Source Code - Found! [Jordan Mechner]