GarrysMod11

We like building stuff. Some of us like destroying it. Some of us like destroying things others created. Some of us like to laugh at the others whose things got ravaged just to cry shortly after since our own creations are on the ground burning up in ashes. Some of us like banning both parties from the same playing field. And a select few of us are locked away in their basements coding tools in a weird moon computer language.
No matter who you are, you'll fit in good. It's a world of possibilities, ♥♥♥♥♥♥♥♥ and unstable Windows dedicated servers out there, and you have to be part of it. If not you can just add baloons to airboats.

http://www.garrysmod.com/news/
http://www.garrysmod.org/downloads/