Similar to the classic old school shooters like Doom, Sauerbraten manages to stay on our list of favorite games.
Click the Cube 2 logo to go get the game for free.
(Open source rocks)
While you can easily just hop in and play single player or multiplayer through servers, (there are public and privately built servers open to the public around the clock,) setting up your own will take a little time and research.
But that is worth doing for countless reasons, using the maps you build in the editor for massive competitions is a blast!
Editing maps takes time but is a brilliant way to learn many aspects of video game design. (Translates to other computer design applications as well!)
Even for Lan parties you’ll need to set up a game server and that can be as simple as a few commands, to as complex as the manual port forwarding through your router to create a dedicated server that you can shut down after your sessions.
Basically a crash course in simple IT fundamentals.
Meanwhile if you need to update graphics drivers etc chances are you are on an older version of Linux or Windows but it’s still worth learning how.
The game features deep levels of editing capability, including sandbox editing features that not only rival most modern game development kits, but also allow experienced editors to literally turn the game into completely different games.
Some of those games include:
A somewhat similar game at first glance but with much harder gameplay and a huge variety of new features like jet packs, configurable weapons, new game modes, etc.
There is no simple way to explain the mechanics of a survival shooter featuring zombies but the idea is sound. The independent game mod (acts as standalone) functions as a complete redesign of the premise of the game and actually rocks!
Multiplayer is quite possible here too.