Flax Engine is claimed the most agile game engine. It's open source, cross-platform and it lets you write scripts in C++ and C# seamlessly. Also focused on lightweight development. A true game changer.




LÖVE is described as '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' and is a popular game development tool in the development category. There are more than 100 alternatives to LÖVE for a variety of platforms, including Windows, Mac, Linux, Android and iPhone apps. The best LÖVE alternative is Godot Engine, which is both free and Open Source. Other great apps like LÖVE are GDevelop, Wick Editor, Candlestick and Ren'Py.
Flax Engine is claimed the most agile game engine. It's open source, cross-platform and it lets you write scripts in C++ and C# seamlessly. Also focused on lightweight development. A true game changer.




This is a free and open-source game engine and toolkit allowing you to create games of the platforming genre. Formerly known as PGE Project.




Flixel is and open source game-making library in ActionScript3. Designed for use with free tools Flixel is easy to learn, extend and customize.






QICI Engine is a free and opensource JavaScript library, based on free and opensource game engine Phaser, with a web-based comprehensive suite of HTML5 game making editor.



Orx is an open source, portable, lightweight, plugin-based, data-driven and extremely easy to use 2D-oriented game engine. Orx is mostly written in C, but allows you to develop with it with any language that can interface to C.




Multimedia JavaScript framework to create real cross-platform and hybrid game engines, games, emulators, multimedia libraries and apps.




Picotron is a Fantasy Workstation: a self-contained creative environment built for imaginary hardware. Create cute Lua apps that can be run inside Picotron as windowed userland processes, shared as cartridge files, or exported to stand-alone HTML apps.




Usagi is a 2D game engine for making pixel art games in Lua 5.5. It features live reload, single-command cross-platform export, and a pause menu with input remapping built in.




Launched in 2011, Gideros has become a successful game engine with 20,000 developers registered and 500 games published.


GameSalad Creator is an authoring tool developed by GameSalad, Inc. (formerly Gendai Games) aimed primarily at non-programmers for composing games in a drag-and-drop fashion, utilizing visual editors and a behavior-based logic system.



