Minimum system requirements:
CPU: Intel Pentium 4 1.7 GHz single-core or AMD Dual Core, 2.0 GHz
Memory: 512 MB RAM
Video card: NVIDIA GeForce FX 5700, 128 MB or ATi Raedon 9500, 128 MB
Sound hardware: DirectX 8.1 compatible sound card
Network: Broadband required for installation (though everyone reading this has that)
Since there are no other discussion threads in Gaming Chat for it, it's pretty popular, and technically not a mod anymore, I felt like making a discussion thread for this. Then I'll feel it was inevitable when this gets locked.
Garry's Mod is a sandbox/physics/multiplayer game originally released on December 24, 2004 as a mod for Half-Life 2 by Garry Newman. Its first iteration was a slight change to the engine to have extra weapons, but it later expanded to an independent physics game in 2006, when it was released on Steam. GMod has risen to be one of, if the, most popular Half-Life 2 modifications ever, being sold over 1 million times. GMod isn't just sandbox gameplay; mods for the mod including Trouble in Terrorist Town, or TTT, have been created, creating more variation.
So, without further ado, discuss anything Garry's Mod related here. Post screenshots, videos, or just talk about the game itself. To contribute to the thread, here are two bland and disgusting screens I took today and yesterday, since I'm just a stupid wannabe artist. I couldn't make them any bigger, since Steam won't give me the better wallpaper images.