Serious Rp Gamemodes

what serious rp gamemodes do you know of and are they open source?
im asking this because i want to try make a private rp server that is a bit more serious than dark rp as much as dark rp can be fun.

Nutscript is the only “open-source” alternative.

dude u gotta work on a schema or use modernrp for nutscript to do this