Recommendations

• ColMesh - 3D Collision Library from TheSnidr.
• BSP 4 GMS - Import BSP files into GameMaker. Currently just a demo but worth keeping an eye on.
• Camera3D - Simple 3D camera setup.
• Blender to GameMaker - A collection of scripts to export and import Blender models to and from GameMaker.
• Penguin - 3D model conversion tool.
• sPart - 3D Particle System from TheSnidr.
• Terrain Editor - Terrain editor. Exports to gm models, obj, or vertex buffers.
• Snowy Snow - 3D Snow Shader.
• 3D Fragment Point Lights - 3D point lights using shaders. 💸
• 3D GameMaker Playlist - DragoniteSpam. 
• 3D Collisions Playlist - DragoniteSpam. 
• 3D Optimization Playlist - DragoniteSpam. 
• ColMesh - 3D Collision Library from TheSnidr.
• 3D-2D - Official tool to turn 3D models into 2D sprites.
• BBMOD - 3D Rendering Solution. Comes with several modules to import obj, 3D camera setup, integration with ColMesh, and more.
• dotobj - Lightweight .obj/.mtl 3D model loader written in native GML.
• Bronze Box - Example of how to build 3D world models from a 2D grid.
• DmrVBM - Import/Export tools to load vertex buffer data out of Blender and into GMS.
• Three Mice In a Trench Coat - Source for a GameMaker 3D game.
• Cardboard - Isometric 3D Renderer.
• BBMOD - 3D Rendering Solution. Comes with several modules to import obj, 3D camera setup, integration with ColMesh, and more.
• DmrVBM - Import/Export tools to load vertex buffer data out of Blender and into GMS.
• BSP 4 GMS - Import BSP files into GameMaker. Currently just a demo but worth keeping an eye on.
• DopeFish Respawned - Extensive WAD manager to load DOOM maps in GameMaker.
• 3D GameMaker Playlist - DragoniteSpam. 
• 3D Collisions Playlist - DragoniteSpam. 
• 3D Optimization Playlist - DragoniteSpam. 
• glTF parser - A model loader with support for animations.
• ColMesh - 3D Collision Library from TheSnidr.
• sPart - 3D Particle System from TheSnidr.
• Collisions - 3D collision system that works with native GML.
• Bonk - Another cool collision library handling a majority of collision shape use-cases.
• GMFlux - Heightfield fluid simulation solver.

Recommendations

• Coroutines - Asynchronous functions for GameMaker.
• Promises - An adaptation of JavaScript Promises.
• SimThreads - Simulated threads for GameMaker.
• MultiProcessing - A proof of concept for multiprocessing in GameMaker.
• GML Promise - Another JS-style promise library.

Recommendations

• Echo/Delay Effect - Optimized delay effect. 💸
• FML - GameMaker bindings for the FMOD Studio API.
• FMODGMS - This doesn't support everything FMOD has to offer and the project itself has been put on-hold.
• wavload - Demonstrates how to externally load .wav files.
• audioExt - Sound External Loader/Unloader Manager.
• ExternalAudio - Load external .wav files at runtime.
• Phonix - Compact audio system. Great for dynamic music!
• Vinyl - Live updating audio system.
• LineAudio - Audio helper functions.
• Bard - An engine for designing and implementing good audio in GameMaker. Updated to make use of the more recent GameMaker audio effects.
• GMEXT-FMOD - Official support for FMOD in GameMaker.
• ExternalAudio - Load external .wav files at runtime.
• Phonix - Compact audio system. Great for dynamic music!
• Echo/Delay Effect - Optimized delay effect. 💸
• SynthEngine - A fully-featured musical synthesizer for GameMaker.
• MusicTheoryLib - Convenient music theory utilities for GameMaker.
• WaveForm - Render audio wave forms from audio buffers in GameMaker.
• WaveWrite - Read and write WAV files in GameMaker.
• GMMidi - Read and write MIDI files in GameMaker.
• EZAFX - Instant preset audio effects for GameMaker.
• GMSync - Perfectly sync game elements to the rhythm of your music.
• MicVol - Easily monitor microphone volume in real time in GameMaker. 💸

Recommendations

• RefresherTowel - Contains several posts on level generation.
• Tony Str - Some great articles on working with JSON, regular expressions *(regex)*, and drawing circles in GML.
• Katsaii - Some articles on more advanced GML topics.
• Meseta on Game Dev - Seasoned GameMaker dev's thoughts on GameMaker concepts and libraries.
• Tony Str - Some great articles on working with JSON, regular expressions *(regex)*, and drawing circles in GML.
• Thoughts On GameMaker - Not a traditional blog but has great info on different GML techniques.
• YellowAfterlife - Tutorials on intermediate/advanced topics.

Recommendations

• GameMaker Cameras: As Simple as Possible - Pixelated Pope's guide on GameMaker's camera system. 
• Camera System Guide - Getting started with cameras in GameMaker.
• Dynamic Splitscreen - Local multiplayer split screen implementation that merges the camera when players are close.
• Camera All-In-One - Editor, screenshake, view-resizing, follow modes, screen effects, etc. 💸
• Pixel Perfect Smooth Camera - An example of pixel-perfect yet smooth camera.
• STANNcam - Camera and resolution manager.
• REZOL - Complete resolution & screen manager (with split-screen support). 💸

Recommendations

• ![GameMaker Forums
• ![GameMaker Forums
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Recommendations

• GML-OOP - A constructor library for operating the primary functionalities of GameMaker.
• GML-Classes - Another project that adds OOP functionality to GameMaker.
• Map - Hash table implementations.
• Matrices - A collection of matrix handling scripts.
• gm-stream - Data structure manipulation.
• Destructors - Allows you to use ds_* types such as lists and maps inside of structs.
• SNAP - Easy data format saving and loading. Please note that newer versions of GameMaker contain `json_parse` and `json_stringify`. However, if you are converting csv, ini, xml, etc, you may find this very useful.
• LWO - Lightweight objects using structs.
• Lock And Key - String and file encryption.
• ForEach - Adds a foreach implementation for arrays, ds_lists, ds_maps, ds_stacks, ds_queues, ds_priorities and structs.
• DeepCopy - Deep clone class instances / constructed structs, anonymous structs and arrays nested in any order!
• Cottonwool - Safe surfaces without memory leaks.
• Airkiver - Game file archive tool.
• OKColor - An okay color manager for implementing OKLab/OKLCH colors.
• Exception - A base class for custom exceptions.
• ArrayList - The most complete list class. Garbage collected, fast sort function, [] accessor and referencing as an array.
• BSONGML - Save and load GML structured data in binary files, skirting memory and performance concerns associated with loading JSON as a string.
• Binder - A binary search library for efficient lookups on large datasets.
• Bit Buffers - Read and write buffers with per-bit granularity.
• sprite_add_gif - Dynamically load animated GIFs as sprites.
• Ngrams - Lightweight n-gram library for fuzzy search, predictive text or token sequence modeling.
• Managix - Async memory & resources manager (texture groups, audio groups, etc). 💸

Recommendations

• DeerLog - Small log writer.
• FPS Speedometer - Pretty framerate display.
• rt-shell - Easy to use in-game shell. Create your own commands, command meta data, command suggestions, history, etc.
• Olympus - Testing Framework.
• Crispy - Unit testing in GameMaker.
• Snitch - Crash and logging system.
• gms2-test - Unit testing framework.
• Meta - Runtime asset inspector.
• Duck - A fast GML analyzer to enforce code styling and detect errors.
• Gobo - An opinionated code formatter for GML.
• Inspectron - A fluent API for easily creating GameMaker debug views.
• FPS Speedometer - Pretty framerate display.
• Gobo - An opinionated code formatter for GML.
• GMPulse - A runtime inspector and control panel. 💸
• Lookout - Helpful debug overlay views.
• Gobo (EttyKitty fork) - A bit less opinionated code formatter for GML, with more options and functionality.
• Gobo (EttyKitty fork) - A bit less opinionated code formatter for GML, with more options and functionality.

Recommendations

• Awesome Gamedev
• GameMaker Libraries
• Awesome Gamedev

Recommendations

• Aseprite
• Aseprite's source code

• GameMaker Manual
• GameMaker Release Notes
• GameMaker Marketplace
• Beginner GameMaker Tutorials - Tutorials from Shaun Spalding. A comprehensive introduction to basic features of the IDE. Highly recommended to check out the full playlist if you're a complete beginner. 
• Advanced GameMaker Tutorials - Tutorials from DragoniteSpam that dive into more advanced topics related to the GML language. They also have comprehensive 3D and shader introduction videos. 
• Beginner GameMaker Tutorials - Tutorials from Shaun Spalding. A comprehensive introduction to basic features of the IDE. Highly recommended to check out the full playlist if you're a complete beginner. 
• Advanced GameMaker Tutorials - Tutorials from DragoniteSpam that dive into more advanced topics related to the GML language. They also have comprehensive 3D and shader introduction videos. 

Recommendations

• XeroInput - Another library to handle multiple inputs for a single action.
• Native Cursors - System-level custom cursors. 💸
• Input - No nonsense gamepad/keyboard library.
• InputCandy - Similar to Input as it acts as a wrapper for SDL, with actions and signalling, but also provides testing, on-screen diagnostics, and some other UI components related to peripherals, as well as pre-built end-user configuration menus that can be easily restyled.
• Good Vibes - Device vibration.
• Mouse Queue - Tracks the Windows mouse pointer with high precision.
• Native Mouselock - System-level mouse locking. 💸
• Raw Input - Use multiple mice and keyboards. 💸
• Input - No nonsense gamepad/keyboard library.

Recommendations

• NekoPresence - Oops, all Discord integration.
• DHook - Discord integration.
• GMS2_RPC - Another Discord integration.
• Steamworks.gml - Various expansions to Steamworks SDK support in GameMaker: Studio.
• Parworks - Additional functionality for the YYG Steamworks extension.
• GOG.gml - A native extension for GOG.com SDK support.
• GMTwitch - Twitch integration.
• GMS2_RPC - Another Discord integration.
• GMHook - We really like Discord integration.
• NekoPresence - Oops, all Discord integration.
• Github.gml - GitHub REST API

Recommendations

• LDtk to GMS - LDtk Importer.
• Wave Function Collapse - Generates a random tile map but not production ready in its current state.
• Draw A Dungeon - Converts your room layouts into a randomized dungeon.
• Cellular Automata Caves - Generates huge caves in a few hundred milliseconds.
• LDtkParser - Advanced LDtk Importer.
• Room Data Inspector - Collects room data and stores it into a JSON for later use.
• Random Dungeon Generator - Combines user-defined chambers to create a dungeon.
• Random Level Generator - A random level generation example (similar to Nuclear Throne) using GameMaker.
• Destructible Terrain - An example of collidable, destructible terrain in GameMaker Studio using surfaces and grids.
• GMRoomLoader - Streamlined room loading at runtime. Great for reusable room prefabs and procedural generation.

Recommendations

• Lighting Systems - Very fast dynamic 2D lighting implementation from GrizzliusMaximus using shadow casting. 
• Bulb - 2D lighting and shadows.
• Lighting System 2D - Requires GameMaker 2.2+ according to the repo.
• GameMaker Lighting Engine - Tile-based Lighting Engine that projects shadows.
• Crystal - Complete and efficient 2D lighting & shadows solution. 💸
• Lighting Systems - Very fast dynamic 2D lighting implementation from GrizzliusMaximus using shadow casting. 

Recommendations

• polyglot - Localization library.
• gm-i18n - Internationalization of texts simply and quickly, using JSON files.
• Lexicon - Another localization solution focused on simplifying implementation.
• GMLocalize - Not a full localization solution. Extracts text strings for localization from a GameMaker Studio 2 project and saves it to a JSON file.
• Small Pentapop Localization Tool - Similar export tool to GMLocalize but exports to a csv.
• gms2-mofile - Mofile reader used for localization.
• cmnLoc - Localization library with a text extractor, short syntax, and ICU/pluralization support. 💸
• MythLoco - A localization system with a web-based strings editor.
• Krug's Localize System - A localization system with real-time Google Sheets API synchronization.
• MythLoco - A localization system with a web-based strings editor.

Recommendations

• zlib functions - Simple compression/decompression functions.
• Window Taskbar - Windows only. Flash the game window border and/or its taskbar button.
• Extension Collection - A suite of various extensions.
• GMSDLL - A template project for building DLLs for GameMaker.
• gameframe - Custom window caption and border for Windows.
• GMD3D11 - A DLL for interfacing with Windows Direct3D.
• GM Sysinfo - Cross-platform extension for getting system information and resource usage.
• window_shape - Custom-shaped windows on Windows. 💸
• Windows' windows - Multiple windows on Windows. 💸
• winMenu - Native menus on Windows. 💸
• window_set_icon - Change window and/or taskbar icons on Windows.
• file_dropper - Accept drag-and-dropping files onto a game window on Windows.
• file_dragger - Drag-and-drop files *out* of the game window on Windows.
• Window Commands - Dispatch/intercept window controls like Minimize (and other window-related functions).
• wasm-bridge - A way to use JS extensions in GX/WASM games.
• Web Dynamic Textures - A dynamic texture page loading system for HTML5.
• GMWinBackdrop - Windows 11 backdrop materials.
• Video Player Extension - Play videos. However, the latest version of GMS has video support.
• GMESCAPI - Webcam capture.
• GMSDLL.rs - Example on how to make native DLL extensions in Rust.

Recommendations

• EZ Networking - Host/client implementation with a chat feature.
• GMHandshake - A Gist demonstrating a network handshake.
• Multiplayer Networking Tutorial - Wizirdi. 
• Good GameMaker Rollback - Rollback netcode library.
• Boomers Networking - Network library which mimics pre-GM:Studio favorite networking extension 39dll using GM native functions.
• Warp - A feature-rich framework for multiplayer games, written in GameMaker and Node.js.