Unofficial Link to the Past PC port is a reverse-engineered gem
Enlarge / Among the many upgrades made possible by this project, A Link to the Past is now a game you can Alt+Tab out of when a supervisor comes near. (credit: Nintendo / Kevin Purdy)
It's a sad reality among retro emulation enthusiasts: You often spend far more time crafting your perfect setup than playing the games. You get your controller, linear filtering, sound engine, and everything else just right, and then you discover that your favorite game of yesteryear is far slower and more annoying than you remember.
That's why the hard work of reverse engineers is so valuable. Hobbyist decompilers have worked to turn ROM binaries into thousands of lines of human-readable code, allowing for far deeper audiovisual upgrades, features, and other tweaks. It has resulted in some impressive new takes on games, including Ocarina of Time, Sonic the Hedgehog, and Grand Theft Auto. And unlike many fan-based projects, reverse engineering generally passes legal muster as long as no copyrighted assets are distributed along with the decompiled code.
And they often far outshine game publishers' official offerings, which usually amount to little more than officially licensed, lightly tweaked emulation.