Armory is an open-source 3D game engine with full Blender integration, turning it into a complete game development tool. The result is a unified workflow from start to finish, making you work faster. No more jumping between different applications to constantly export data from one to another. (Zlib)
Linux - Windows - MAC OS X
In Gates of Delirium, players have a hand of split action cards: one side sane, and the other insane. Every round, one player decides whether the round is sane or insane, and all players must play that side of their cards. Card Sleeve Sizes for Games Taeraresh 7 years ago 6.8K 5.4K GameNight! Episode List Aldie 8 years ago 626 352.
GDevelop is a free, open-source, and cross-platform game creation tool that anyone can use to create games without programming skills. Unleash your creativity with GDevelop and create any kind of game: platformers, puzzles, shoot 'em up, strategy, 8-bit games... (MIT)
Cross-platform
Godot is an advanced, feature packed, multi-platform 2D and 3D game engine. It provides a huge set of common tools, so you can just focus on making your game without reinventing the wheel. (MIT)
Windows - Cross-platform
jMonkey is a free, open source game engine, made especially for Java game developers who want to create 3D games using modern technology. The software is programmed entirely in Java, intended for wide accessibility and quick deployment. (BSD)
Cross-platform
OGRE (Object-Oriented Graphics Rendering Engine) is a scene-oriented, flexible 3D engine. (LGPL)
Cross-platform
The OpenSceneGraph is an open source high performance 3D graphics toolkit, used by application developers in fields such as visual simulation, games, virtual reality, scientific visualization and modelling. (LGPL)
Cross-platform
Panda3D is a 3D game engine: a library of subroutines for 3D rendering and game development. Game development with Panda3D usually consists of writing a Python or C++ program that controls the Panda3D library. (BSD)
Linux - Windows - MAC OS X
Phaser is a fun, free and fast 2D game framework for making HTML5 games for desktop and mobile web browsers, supporting Canvas and WebGL rendering. (MIT)
Cross-platform
Superpowers is an HTML5 development environment for making 2D and 3D games. It can be extended with plugins and lets you collaborate in real-time. 2D+3D game making for indies. Free and open source, finally! (GPL)
Cross-platform
9 applications