Gmod-sdk-x64_[cheate....com]_ Page

It looks like you're referring to an x64 version of the Gaztoof GMod-SDK , a software development kit often used for creating or updating cheats for Garry's Mod.

If you are looking to get a "piece" of the codebase or set it up, Core Components GMod-SDK-x64_[cheate....com]_

: To use the compiled "piece" of software, you need an injector to insert the DLL into the gmod.exe process. Basic Usage Steps It looks like you're referring to an x64

: If the game updates, the interfaces might break. You may need to update the "dylibs" or "interfaces" manually to keep the cheat functional. GMod-SDK-x64_[cheate....com]_