It is made in Unity, code GPL-3.0

You have no control over the license of Unity and the GPL requires that the dependencies (ie. Unity) has to be under GPL or a compatible license.

Also Unity is not only despicable because of the installation fee shit they tried pulling some time ago, they're about to be bought by Saudi Arabia, so fuck them even more.

Switch to Godot.

Edit:

Nevermind. This is vibecoded using Claude, thereby not crossing the threshold of originality as required by copyright law, so all code is public domain anyway and has no GPLv3 protections (needs human creativity for copyright protection):

And given that Anthropic pays neo nazi Elon Musk, Unity is quite a good match on the lack of morals.

EDIT 2:

Yeah, no way such comments with "summary" tags were written by a team of humans: