In late 2018 the original source code for the N64 Version of Turok was released to the public by an unknown patron, it is believed to have originated from one of the SGI workstations sold off during the Acclaim bankruptcy.
This makes it the first commercial Nintendo 64 game to have its source...
See the thread on assemblergames
Error | ASSEMbler - Home of the obscure
Some pictures are available in the thread, I wasn't able to easily copy them over here.