Free, open source game engine online
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
A pure Go game engine
An easy to use 2D HTML5 game engine written in TypeScript
Ct.js is a desktop game engine that makes learning programming fun
The Tiny JavaScript Game Engine That Can!
Engo is an open-source 2D game engine written in Go
Game engine supporting many 3D/2D formats and graphic effects
Orx: Portable Game Engine
A simple cross-platform game engine for creating old-school 2D games
Vivid3D is an open-source 3D engine with powerful 2D UI.
Data-oriented and data-driven game engine written in Rust
Planimeter Game Engine 2D - LÖVE-based game engine for Lua
A cross-platform 2D game engine
A 2D game engine and level editor
scriptable game engine with built-in support for 2D graphics and sound
A mobile game distributed server implemented using netty4.X
An advanced flexible game engine for Java.
Built to be ease of use, with no programming knowledge, Multi-platform
XNA based game engine completely written in c#
2D physics engine for games
A generic 2D engine for any kind of game
TR Game Engine allows you to develop your game quickly and easily.