GM Core Foundation is the fastest way to go from zero to productive in GameMaker: Studio 2.3. With one package import containing all of the goodness of GM Core, you can get up and running with a comfortable and capable foundation with minimal overhead - just some scripts and one object.
Download the latest release and import the .yymps file into your project. Alternatively, you can clone this repository and use the project itself as a starting point.
For detailed instructions on importing
yymps files, follow this guide
# What's in the box
A copy of every GM Core utility: