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.



microStudio is described as 'Free game engine online. Create games, learn programming, play, share, prototype and jam!' and is a game development tool in the development category. There are more than 100 alternatives to microStudio for a variety of platforms, including Windows, Linux, Mac, iPhone and Web-based apps. The best microStudio alternative is Godot Engine, which is both free and Open Source. Other great apps like microStudio are Android Studio, Unity, Unreal Engine and GDevelop.
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.



Platinum Arts Sandbox Free 3D Game Maker is an open source free game maker, free RPG Maker, free sidescroller maker, free Machinima creator, and game design tool that makes it easy for kids and adults to create video games, maps and worlds.
LittleJS is a fast lightweight open source HTML5 game engine for modern web development. Its small footprint is packed with a comprehensive feature set including hybrid rendering, physics, particles, sound effects, music, and input handling.

Make and share your own games online with http://flowlab.io - a game studio in your browser.

Rogue Engine is a full featured environment for game development using WebGL. Create projects in an intuitive and familiar 3D environment using configurable components made with TypeScript.




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.




ZGameEditor lets you create 3D games with procedural content that have a redistributable size of 64 KiB or less. It consists of a lightweight OpenGL-powered engine that runs on Windows, Mac, Linux & Android, and a portable Windows IDE featuring real-time editing.




FPL base is a low level C++ game library developed by Google. It is open source and can be extended by the user or by adding other libraries in the FPL suite: Corgi,Mathfu,Motive,Pindrop,FlatUI and Flatbuffers.



Amulet is a free Lua-based audio/visual toolkit suitable for small games and experimentation. It runs on Windows, Mac, Linux, HTML5 and iOS.
The Seclusion Game Engine ("SGE", pronounced like "sage") is a general-purpose libre open source 2-D game engine for Python. It takes care of several details for you so you can focus on the game itself.

GLFW is an Open Source, multi-platform library for OpenGL, OpenGL ES and Vulkan development on the desktop. It provides a simple API for creating windows, contexts and surfaces, receiving input and events.
Sploder is an online game creator. Create fun games that you can publish to the net and email to friends.



