HaxeFlixel is a 2D Game Engine that lets you create cross-platform games easier with free, open source technology!



Unity is described as 'Real-time 3D engine enabling collaboration to create immersive, interactive experiences on Windows, Mac, and Linux, with extensive platform support' and is a very popular game development tool in the development category. There are more than 100 alternatives to Unity for a variety of platforms, including Windows, Linux, Mac, Web-based and iPhone apps. The best Unity alternative is Godot Engine, which is both free and Open Source. Other great apps like Unity are Unreal Engine, Stride Game Engine, GDevelop and CRYENGINE.
HaxeFlixel is a 2D Game Engine that lets you create cross-platform games easier with free, open source technology!



Range Engine is a light and powerful game engine and 3D software, made based on Blender Game Engine with improvements from UPBGE.

The Graphics Development Engine for Business and Industry. Build high-quality 3D solutions and deploy to any platform.



Buildbox is a breakthrough game creation experience. Creating games is as easy as dropping images into the software, making changes to their properties and hitting play.





Resonite is a free collaborative social VR & desktop sandbox platform, where users can socialize in a virtual environment and create objects, avatars & worlds together.




MANU is an easy to use Video Game Maker. Making your own 3d arcade games with MANU is easier than ever. No code. No limits.


Esenthel is a next gen, cross-platform C++ game engine that comes with a lighting fast, high performance game engine with advanced graphics and physics and support for multiplayer and UNLIMITED size worlds which is make the engine well suit even MMORPG titles.




The only true complete development platform for online games. HeroEngine seamlessly integrates the entire client and server architecture required to operate an online game directly into the development process.



Amethyst uses gfx-rs to render graphics with Vulkan or Metal. It is meant to be used for 2D and 3D, with various utilities for both types of games. It should be beginner friendly but also allow more advanced uses such as custom render passes and GLSL shaders.
Multimedia JavaScript framework to create real cross-platform and hybrid game engines, games, emulators, multimedia libraries and apps.




GemRB (Game Engine Made with preRendered Background) is a portable open-source reimplementation of the Infinity Engine that underpinned Baldur's Gate, Icewind Dale and Planescape: Torment. It sports a cleaner design, greater extensibility and several innovations.



