Hi there! LÖVE is an awesome framework you can use to make 2D games in Lua. It's free, open-source, and works on Windows, Mac OS X, Linux, Android and iOS.
Pygame is a set of Python modules designed for writing video games. Pygame adds functionality on top of the excellent SDL library. This allows you to create fully featured games and multimedia programs in the python language.
Allegro 4 and Allegro 5 are cross-platform, libraries mainly aimed at video game and multimedia programming. They handle common, low-level tasks such as creating windows, accepting user input, loading data, drawing images, playing sounds, etc.
The Grit Game Engine is an MIT-Licensed Open Source Game Engine that is highly scriptable via Lua. It supports huge open world maps and dynamically streams assets from disk. The Grit Game Engine is a community project to build a free game engine (and toolchain) for implementing...Discontinued
The last update is from May 2018.
Project Anarchy is a complete end to end game engine and state-of-the-art toolset for mobile. Project Anarchy includes an entirely free license to ship your game on iOS, Android and Tizen platforms.Discontinued
Project Anarchy™ has concluded: http://www.havok.com/anarchy-redirect/
Very fast BASIC like programming language for console and gui applications, automate process, automate data exchange, connect to databases, send mails, ftp, rest api, parsing, tokenizing, files, OpenGl, graphics, sound, printing ... much more.
Orx is an open source, portable, lightweight, plugin-based, data-driven and extremely easy to use 2D-oriented game engine. Orx is mostly written in C, but allows you to develop with it with any language that can interface to C.
The Irrlicht Engine is an open source high performance realtime 3D engine written in C++. It is completely cross-platform, using D3D, OpenGL and its own software renderers, and has all of the state-of-the-art features which can be found in commercial 3d engines.
JMonkeyEngine3 it’s 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.