But the game is “finished”. there is no need for alterations.
If only that was the case. But there is no chance a game built for windows 95 could run unaltered on an android phone. Things like the rendering systems, input handling, and sound output will need to be adapted to work on a new platform.
https://docs.python.org/3/using/configure.html#cmdoption-disable-gil
The GIL appears to be slowly going away.