High-Quality Graphics: Modern PC hardware allows Gmod to run at high resolutions with improved lighting and textures compared to its 2006 release. System Requirements for PC

Most websites offering a free GMod .exe file are hiding trojans. Because GMod requires significant CPU power to process physics, hackers often bundle into the download. The "free game" will run in the background, using your GPU to mine Bitcoin, slowing your PC to a crawl.

When searching for one must distinguish between legitimate methods and illicit ones.

To get the version of GMod, follow this guide. Note that while the base game costs money, the value is immense.