YYToolkit is a tool for creating mods and altering GameMaker games.

Currently, only Windows is supported.

• Plugin Support
  • Allows for easily extending YYToolkit functionality
  • Gives you the ability to make mods in YYC environments
• Well-documented
  • Most APIs are documented on the Wiki, including a full guide on making plugins.
• Basic built-in GML function caller
  • Allows for calling any built-in GML function just by pressing F10.
• Full compatibility with existing tools like UndertaleModTool or Dogscepter.
• Runtime loading / unloading
  • Mods and even the tool itself can be (un)loaded while the game is running, seamlessly.

• For general game modding questions - Underminers Server
• For extended help with YYToolkit - YYToolkit Server

• MousieDev for creating makefiles (which I'm not sure even work at this point)
• Miepee for the awesome icon!
• TheEternalShine for testing and giving feedback on in-development versions of the tool.