The full GTA V source code has been leaked The leak contains GTA V source code and stuff from Bully 2 and GTA VI Leaked in a discord server by a random British guy in the 360 modding community known to get sued by Rockstar multiple times
"Now i am expecting a open source version of gta to arrive soon on linux natively . Tired of playing supertuxcart."
Here is the source. Another one.
The source filesize 4.3GB seems really odd for a >100GB game. Why is it like that?
It's probably just the code without any assets (textures, 3d models, etc.). Code really doesn't take much space. You'd have a hard time actually building it to something playable as is, but this is still useful to modders.
Most of that size is assets rather than programme code
Code is pretty small but images, textures, voice lines, etc can crank it up
lol, i think we can agree that 4+ GB of pure letters are not by any means small