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Games like catch_error for GameMaker

Livecoding for GameMaker: Studio / GameMaker Studio 2
Descriptive error messages and better error handling for GameMaker data structure functions
Dynamic scripting on Win/Mac/Linux.
Work with files in all accessible places in GameMaker games.
Better and safer JSON functions.
Package GameMaker rooms and load them as you please
Create one sprite, have unlimited possibilities!
Capture part/whole screen/all screens inside or outside of your GM games
Auto-organize audio files in compiled GMS games into directories
A high-end code editor for GameMaker: Studio / GameMaker Studio 2
Get information about the player's screen(s)!
Raw Input
Use multiple mice and keyboards in GameMaker games!
Better INI functions for GameMaker: Studio
40 stylish pixel fonts to use in your games, websites, and more!
Design pixelart effects and render them to .png sprite sheets or .gifs.
Geon FX
Simply stunning Particle Editor for GameMaker Studio 1-2 with a PNG and GIF Export