SkullRush

Open source

The entire source code is available under the GPLv3 license.

GitHub repository

Frantic gameplay

SkullRush features first-person shooter frenzy coupled with a 2D platformer world. Excellent LAN party material.

Incredible mod support

Out of the box support for custom game modes, custom game entities, and custom graphics and sounds.

Custom maps

Create your own maps with Ogmo Editor!

Accessible server hosting

It's really simple.

Portable and light-weight

There's no need to install anything at all. The game requires under 10 MB of data.