Oxygine is described as 'is completely free and open source (MIT license) 2D game engine, available on GitHub. It is written in C++ and runs on MacOSX, iOS, Android, Windows and Linux' and is an app in the Development category. There are more than 25 alternatives to Oxygine for a variety of platforms, including Mac, Windows, Linux, iPhone and iPad. The best alternative is Cocos2d-x, which is both free and Open Source. Other great apps like Oxygine are SDL (Free, Open Source), Phaser (Free, Open Source), MonoGame (Free, Open Source) and PixiJS (Free, Open Source).
One framework for creating powerful cross-platform games. The spiritual successor to XNA with 1000's of titles shipped across desktop, mobile, and console platforms. MonoGame is a fully managed .NET open source game framework without any black boxes.
PixiJS is an advanced, mature HTML5 creation engine with a fast and flexible 2D WebGL renderer. FEATURES - Interactive, visually compelling content on desktop, mobile and beyond, all reached with a single code base. - Photoshop quality blending and colour modes.
SFML (Simple and Fast Multimedia Library) is a portable and easy-to-use API for multimedia programming. It is written in C++ with bindings available for C, D, Python, Ruby, OCaml, .Net and Go. It can be thought of as an object oriented alternative to SDL.
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.