OpenTTD

Reddit Classic Server 1 - https://www.reddit.com/r/openttd/wiki/server1/

Reddit NewGRF Server 2 - https://www.reddit.com/r/openttd/wiki/server2/

RPi Server - https://www.tobias-schwarz.com/en/posts/4/

Systemd init - https://www.reddit.com/r/openttd/comments/pbgfd8/initd_script_for_dedicated_server_is_down/ ou http://code-faff.blogspot.com/2017/12/openttd-under-systemd.html