Stumbled upon this repo called delirium physics, which is a Rust physics SDK “inspired” by the beloved Euphoria physics SDK used in games like GTA 4 and RDR.

But it’s really good… so I’m wondering if this is actually legitimately an inspired recreation or if the author somehow stole it from GTA 4. The delirium testing room requires you to give it your GTA 4 install location for task settings, etc., so I’m a little suspicious lol.

Maybe someone out there knows more. I’m trying to determine if there are potential legal consequences from Rockstar for using this if this is indeed somehow a direct stolen/reverse‑engineered port of Euphoria, not to mention moral/ethical considerations.

Might be a stupid question but oh well.