A project that perhaps isn't as well known as it should be: LinuxGSM makes managing Linux game servers easy and they recently hit a fun milestone.
It supports running servers for games like 7 Days to Die, Barotrauma, various Counter-Strike versions, Don't Starve Together, Minecraft and a ton more. Starting way back sometime in 2012, the lead developer Daniel Gibbs emailed in to notify us that they recently hit a huge milestone for the project as it now supports over 100 different games.
There's a number of other ways to run game servers but the point of LinuxGSM is that each game is tweaked and tested by them, with an easy to run installer and script to manage all parts of it. Running updates, getting notifications sent to various places like Discord, Telegram, Email and more when it's having issues is simple to setup.
We actually use LinuxGSM here at GamingOnLinux, as it makes sorting out our 7 Days to Die server we put online for our livestreams (Twitch) super easy. All the handy scripts it comes with and the documentation they provide have taken away so much hassle it's crazy. It's basically my go-to any time I want to spin up a game server, it just makes it simple to do.
Perhaps next time you wish to boot a game server up for a tournament or to play with friends, knowing about LinuxGSM might make things a little simpler.