EZAFX topherlicious.itch.io

Instant preset audio effects for GameMaker.

Tony Str tonystr.net

Some great articles on working with JSON, regular expressions (regex), and drawing circles in GML.

Jump Flooding terohannula.itch.io

GML implementation of the jump flooding algorithm, using shaders.

Good GameMaker Rollback springrollgames.itch.io

Rollback netcode library.

LDtk to GMS shynif.itch.io

LDtk Importer.

TransFX short-bread.itch.io

Transition Library.

Extension Collection samuel-venable.itch.io

A suite of various extensions.

YYP Maker sahaun.itch.io

Makes .yyp files for you.

ASESync sahaun.itch.io

Automatically syncs aseprite files in GameMaker.

ImGuiGML rousr.itch.io

DLL/GML wrapper of Dear ImGui.

RefresherTowel refreshertowelgames.wordpress.com

Contains several posts on level generation.

GitHub Yacc to GML Fix reddit.com

Tell GitHub your repo is all GML, not Yacc.

XeroInput reddit.com

Another library to handle multiple inputs for a single action.

Wave Function Collapse quadolorgames.itch.io

Generates a random tile map but not production ready in its current state.

Grid-based Pathfinding Scripts proton-squid.itch.io

Flexible pathfinding system with 3 different algorithms.

Easy And Fast Menu pkgames.itch.io

Simple implementation to have a menu up and running in seconds. Seems like a great fit if you're not looking for a bigger solution like GMUI.

Twerp pixelatedpope.itch.io

Easing function similar to lerp().

True State pixelatedpope.itch.io

Feature-rich finite state machine to handle complex objects.

Top-Down Movement & Collision pixelatedpope.itch.io

Robust object-based collision system from Pixelated Pope.

Scripture pixelatedpope.itch.io

Another easy to use, highly compatible text renderer.

Depth Sorted Silhouettes pixelatedpope.itch.io

Example project to demonstrate shader-based depth sorting silhouettes. Tested on PC, Mac, HTML5, and Android.

bktGlitch odditica.itch.io

Glitch shader.

GUI Framework niris.itch.io

GUI implementation from Niris Games.

MythLoco mythloco.co.uk

A localization system with a web-based strings editor.

DeerLog mulfok.itch.io

Small log writer.

wTimer mors-games.itch.io

Robust alternative for alarms.

wFSM mors-games.itch.io

Another Easy-to-use Finite State Machine library.

Meseta on Game Dev meseta.dev

Seasoned GameMaker dev's thoughts on GameMaker concepts and libraries.

Beginners Guide to Sprite Stacking medium.com

A primer on sprite stacking from Avis. Check out part 2 from dev_dwarf as well.

Stitch for VSCode marketplace.visualstudio.com

Edit GameMaker projects in VSCode.

GMESCAPI marketplace.gamemaker.io

Webcam capture.

NekoPresence marketplace.gamemaker.io

Oops, all Discord integration.

sPart marketplace.gamemaker.io

3D Particle System from TheSnidr.

InteractiveBooks marketplace.gamemaker.io

Highly flexible, interactable books.

Rocket Networking Engine marketplace.gamemaker.io

Easy low-code multiplayer engine.

GameMaker Marketplace marketplace.gamemaker.io

GameMaker Manual manual.gamemaker.io

gooey manta-ray.itch.io

Sprite-based UI Library for GameMaker LTS.

GMSnip manta-ray.itch.io

Experimental tool to define unlimited code snippets in the IDE.

Echo/Delay Effect madwolf-studios.itch.io

Optimized delay effect. 💸

Camera System Guide maddestudiosgames.com

Getting started with cameras in GameMaker.

Dynamic Splitscreen maddestudios.itch.io

Local multiplayer split screen implementation that merges the camera when players are close.

Advanced Particles limekys.itch.io

A particle implementation that comes with its own delta timing methods.

DopeFish Respawned lemontoast-games.itch.io

Extensive WAD manager to load DOOM maps in GameMaker.

Pause Menu jasontomlee.itch.io

Another smaller implementation but has a cool animation between menu options.

EZ Networking jasontomlee.itch.io

Host/client implementation with a chat feature.

Camera All-In-One jasontomlee.itch.io

Editor, screenshake, view-resizing, follow modes, screen effects, etc. 💸

Verlet Integration Library jamjamteam.itch.io

Verlet integration by Sarek Lambert.

GMShaders.com gmshaders.com

Shader tutorials from Xor. Originally hosted at "xorshaders.com".

GameMaker Release Notes gms.yoyogames.com