Tools
A list of tools that are useful for AM2R Modding
Download: https://github.com/krzys-h/UndertaleModTool/releases
UndertaleModTool (often abbreviated as UMT or UTMT) lets you change GameMaker asset files. This is your primary modding tool.
Download: https://github.com/Miepee/Glenn/releases
Glenn lets you able to port your Mod to Windows, Linux, Android and Mac.
Download: https://github.com/AM2R-Community-Developers/Atomic/releases
Atomic makes your mods AM2RLauncher compatible, so that other people can properly install them.