Xdelta Patcher -
Then, he reached a point in the game that didn't exist in the walkthroughs. The protagonist stood before a mirror.
He wasn't surprised. XDelta was notoriously finicky. If the source file had a single header error, the whole operation collapsed. He opened his hex editor. He didn't need to play the game; he needed to read its DNA. He located block 409. xdelta patcher
Patching Reality... 50%...
He ran the patcher again.