raylib - Cross-platform, open-source game development library in C.
SFML - SFML provides a simple interface to the various components of your PC, to ease the development of games and multimedia applications. It is composed of five modules: system, window, graphics, audio and network.
SDL - Simple DirectMedia Layer is a cross-platform multimedia library designed to provide low level...
CrossBrowdy - Open-source JavaScript framework to create cross-platform and hybrid game engines, games, emulators, multimedia libraries and apps
WebGL - WebGL is a JavaScript API for rendering interactive 3D computer graphics and 2D graphics within any compatible web browser.
Allegro - Allegro 4 and Allegro 5 are cross-platform, libraries mainly aimed at video game and multimedia...