In Garry’s Mod there’s no aim, no objective- just fun. This Sandbox game gives you tools and a free hand to do whatever you want. Combine elements, build things that don't have a name yet, or just use the game to put available characters in crazy positions. Garry’s Mod content definitely allows you to show your talent.
Minimal requirements:
Processor: 1.8 GHz Processor
Graphics: DirectX 9 level Graphics Card (Requires support for SSE)
Memory: 2 GB RAM
Disk space: 5 GB available space
System: Windows Vista/XP