Comment by VoidWhisperer

I can't imagine this avoids a cease and desist or DMCA notice from CD Projekt Red, since atleast as far I can see, it is distributing the game assets along with it, so even if the code was a clean room re-implementation of the game (which seems unlikely), the assets (and the game as a whole, effectively) being distributed to someone who doesn't necessarily own the game is probably not going to end well.

This is the reason why in some projects that are re-creations/ports/etc of games, they explicitly require that you have the assets yourself to use the project