Garry's Mod

Garry's Mod is a physics sandbox by Facepunch Studios. Instead of a campaign or fixed goals, the game provides an open environment, physical objects and tools that players use to build their own constructions, experiments and scenes.

The sandbox is based on Valve's Source technology and is strongly geared toward community-created content. As a result, uses range from simple physics experiments to fully custom game modes on community servers.

Garry's Mod was released as a standalone PC game on Nov 29, 2006. Facepunch developed the game, and Valve published the Steam version.

The PC version includes Windows, macOS and Linux. There is no verified native console version.

Garry's Mod is a PC game. The Steam product page lists requirements for Windows and historical information for macOS and Linux; these desktop systems count toward the PC version.

No standalone native console version is confirmed. For that reason, a platform is not counted as a release based only on possible streaming, emulation or compatibility routes.

In the classic sandbox mode, objects can be spawned, moved and connected with tools. This creates vehicles, machines, buildings or staged scenes, without a fixed mission goal dictating the flow.

Physics and the toolkit form the basic framework: players combine props and other elements of the Source environment and decide for themselves what to build or try out. Garry's Mod supports both single-player and networked multiplayer sessions.

For Windows, Steam lists at least Windows 10, a processor from 2 GHz, 4 GB RAM, at least 1 GB dedicated graphics memory, DirectX 9.0c, broadband internet and 10 GB free storage. Recommended are Windows 10 or 11, a processor from 2.5 GHz, 8 GB RAM, at least 4 GB dedicated graphics memory and 25 GB storage.

Steam also lists older macOS and Linux requirements. These should be read as historical product information, because the supported Steam client and operating system versions have changed since then.

Community content is a core part of Garry's Mod. Add-ons and the Steam Workshop let you add maps, models, tools and game modes, among other things. Depending on the server or your own mod selection, the game can change significantly.

Facepunch explicitly describes Garry's Mod as an extensible sandbox; Steam integrates Workshop support directly into the product page.

Garry's Mod supports online and LAN multiplayer, including cooperative and competitive play styles. Which rules apply depends heavily on the server and the installed add-ons or game modes.

This means multiplayer is not a separate side feature, but a lasting foundation for many community modes and custom server configurations.