Godot Engine is described as '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' and is a leading game development tool in the development category. There are more than 100 alternatives to Godot Engine for a variety of platforms, including Windows, Linux, Mac, Web-based and Android apps. The best Godot Engine alternative is Unreal Engine, which is free. Other great apps like Godot Engine are Unity, GDevelop, Wick Editor and LÖVE.
Valkyrie is a no-code creative platform that lets designers combine digital assets and create applications and interactive prototypes: where the power of Unity meets the usability of Photoshop.
United Kingdom
Solar2D is a Lua based cross-platform framework with focus on ease of iterations and usage. ideal for rapidly creating apps and games for mobile devices and desktop systems.
Russia
Develop your programming skills by quickly creating and modding retro arcade games with Blocks, JavaScript and Python in the online MakeCode editor, the offline app or your own local pxt-arcade server.
United States
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.
Germany
EU
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.
United States
Monkey is a modular language. You can create your own custom modules and use other people's - including the awesome box2d and minib3d modules!.
Hypatia is a game engine for single player 2D action adventure games. You can use it to make a game like Legend of Zelda: Oracle of Ages and Oracle of Seasons. Hypatia is aimed at non-programmers and programmers alike.
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.
United Kingdom
Lunar Engine is a free, open source 2D Online RPG maker software suite that enables you to rapidly create spectaclor online worlds from your imagination to the computer screen.
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.
Pixel Game Maker MV allows you to build up your own action game with no programming knowledge necessary. This engine was designed with the idea of giving a voice to people's passions, allowing them to freely express the game that they have held in their hearts.
Japan
