Phaser is a free and fast 2D game framework for making HTML5 games
Easy to use Python library for creating 2D arcade games
Orx: Portable Game Engine
CGL (C Game Library) is a multipurpose library
Ct.js is a desktop game engine that makes learning programming fun
The HTML5 Creation Engine
This software is a particle effect editing tool
RenderDoc is a stand-alone graphics debugging tool
Full featured MUD server with all the trimmings.
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
A Logo-like 3D environment, implemented in Nim
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
Vivid3D is an open-source 3D engine with powerful 2D UI.
An Android library that provides views using openGL canvas
Plugin pack for making 2D games with Bevy
ZED OS the clone of Windows XP
Modern 3D engine and IDE written using C# and C++.
A complete framework for Godot to create beautiful and complex AI
Free and Open Game Programming Language for Windows and GNU/Linux
Open-source, cross-platform, game-development tools
Test project with a 2D platform game developing in Godot 3.1
a 2D Game Development Framework
The world's first evidence-oriented programming language
Extensible HTML5 app for real-time collaborative projects