Open Source Game Development Tools

Godot Engine is a feature-packed, cross-platform game engine to create 2D and 3D games from a unified interface. It provides a comprehensive set of common tools, so that users can focus on making games without having to reinvent the wheel.

GDevelop is an open-source game making software designed to be used by everyone. Any kind of 2D games can be created with it and no programming skills are required to get started. Logic of games are made using visual events.

PixiEditor is a free and open-source universal 2D editor. Create clean pixel-perfect sprites, paint with raster tools, or design crisp vector graphics — all on one canvas. Animate frame-by-frame or use the powerful Node Graph to build fully non-destructive visuals and custom...

The Wick Editor is a free and open-source tool for creating games, animations, and everything in-between. It's designed to be the most accessible tool for creating multimedia projects on the web. Your creations can run on any device with a web browser - that means mobile too.

Hi there! LÖVE is an awesome framework you can use to make 2D games in Lua. It's free, open-source, and works on Windows, Mac OS X, Linux, Android and iOS.

a visual novel engine that helps you use words, images, and sounds to tell interactive stories that run on computers, mobile devices, and the web.

Redot Engine is a feature-packed, cross-platform fork of the Godot game engine to create 2D and 3D games from a unified interface. It provides a comprehensive set of common tools, so that users can focus on making games without having to reinvent the wheel.

A quick and easy to use drag and drop retro game creator for your favourite handheld video game system.

microStudio is a free game engine online. Create games, learn programming, play, share, prototype and jam!.

Armory is an open-source 3D game engine with full Blender integration, turning it into a complete game development tool. The result is a unified workflow from start to finish, making you work faster. No more jumping between different applications.

A refreshingly simple data-driven game engine built in Rust. Free and Open Source Forever!

TIC-80 is a fantasy computer where you can make, play and share tiny games. Comes with built-in tools for development: code, sprites, maps, sound editors and a command line.

Stride (formerly Xenko) is an open-source C# game engine designed for the future of gaming. It comes with a full toolchain and is especially well suited to create realistic games but allows you much more!.

Pocket Code allows you to create your own games, animations, interactive music videos, and many kind of other apps, directly on your phone or tablet.

ct.js is a 2D game editor (desktop app) based on web technologies. It aims to be an extensible yet simple game-making tool, accessible for both newbies and experienced game developers.

A extremely powerful application to make games in python as well as in visual programming

cocos2d-x is a cross platform open source free 2D game engine for mobile gamedev, that is fast and stable, easy to learn and use.

Tiled is a general purpose tile map editor. It's built to be easy to use, yet flexible enough to work with varying game engines, whether your game is an RPG, platformer or Breakout clone. Tiled is free software and written in C++, using the Qt application framework.

Eldiron is a cross-platform creator for classic retro role-playing games (RPGs). Its primary goal is to enable the creation of RPGs reminiscent of the 1980s and 1990s while incorporating modern features such as multiplayer support, procedural content generation, and more.

Urho3D is a lightweight, cross-platform rendering and game engine implemented in C++ and released under the MIT license. Greatly inspired by OGRE and Horde3D.

One framework for creating powerful cross-platform games. The spiritual successor to XNA with 1000's of titles shipped across desktop, mobile, and console platforms. MonoGame is a fully managed .NET open source game framework without any black boxes.

Adventure Game Studio (AGS) - is the IDE and the engine meant for creating and running videogames of adventure (aka "quest") genre. It has potential, although limited, support for other genres as well.

Torque 3D is a easy-to-use game creation platform. Architected from the ground up for maximum flexibility and performance across a wide range of hardware and built upon the Frontline award-winning Torque Game Engine Advanced, Torque 3D comes equipped with a full suite of tools...

editor that uses the Ink narrative scripting language and allows you to play and test your interactive (game) narrative stories on the fly.

Phaser is a fun, free and fast 2D game framework for making HTML5 games for desktop and mobile web browsers, supporting Canvas and WebGL rendering.