OpenSoldat is a unique 2D (side-view) multiplayer action game
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Phaser is a free and fast 2D game framework for making HTML5 games
Old-school 2D game engine
Game engine supporting many 3D/2D formats and graphic effects
Game library for Pascal
A completely free, open-source, 2D game engine
LÖVE is an awesome 2D game framework for Lua
A refreshingly simple data-driven game engine built in Rust
Free game engine for development of desktop, mobile, and web games
Real Time Strategy game engine supporting early Westwood classics
A fresh & lightweight javascript game engine
Stride (formerly Xenko), a free and open-source cross-platform C# game
Naev is a 2d action/rpg space game, action, rpg and simulation
Open source library for creative expression on the web, desktop, etc.
A free & open-source 2D sprite editor, made with the Godot Engine
Game engine to build text adventures.
Gideros Release version
Phaser CE is a fun, free and fast 2D game framework
Amateur 3D Game Engine
Ct.js is a desktop game engine that makes learning programming fun
Custom Map File Generator for C-evo
A Java math library for OpenGL rendering calculations
High performance UI layout library in C
A 2D CAD application for civil engineering , built with Free Pascal