When I installed OpenRCT2 on void Linux yesterday,
I found out that it is in the official repository.
It installs with the command:
sudo xbps-install OpenRCT2
And after that comes the last step:
openrct2 set-rct2 /path/to/rct2-install
Everything worked except plugins (maybe the version in the repository is outdated?).
It would be nice if Void could be added to the distro selection of the quickstart guide on the website.