GML Reference
Mod Docs
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Single-Page
Introduction
Index
Quickstart
Installing Mods
Example Mod
Tools and Resources
Catspeak and GML
Understanding the Docs
GameMaker, the Engine
Index
Engine Architecture
Moddable Game Objects
Moddable Events
Internal Identifiers
GML Reference
Rusted Moss, the Code
Index
Mod Loading
Rooms and Maps
Miscellaneous
Modding Info
Index
Undertale Mod Tool
Limitations
Modifying Existing Code
Debugging, Pitfalls, and Errors
Performance
RMML
Index
Quickstart
Features
API and Technical
Design and History
Migration to RMML 6
TODO
refs