The full source code for Metal Gear Solid 2: Sons of Liberty leaked online on 30 April, with the files posted to 4chan. [1]
The leaked package reportedly includes the raw, uncompressed source code for every version up to the PS Vita, along with more than 30GB of assets, including unused material. [1]
The source code in the leak appears to be for the later HD version of the game rather than the 2001 original, which means it is unclear whether restored deleted cut-scenes would be possible. [1]
Bluepoint created the HD version's source code, and Sony closed Bluepoint down in March. [1]
Some fans have speculated about possible modding results, including new POVs, VR, ray tracing, co-op and restored cut-scenes, while others have floated theories that the leak may have been retaliation or the result of someone carelessly discarding a hard drive. [1]
Hideo Kojima tweeted about 30 April just days before the leak and added a snapshot of Snake, adding to the online chatter around the date. [1]
The leak has not been publicly verified beyond the files shared online, and no further formal response was included in the facts provided. [1]