Unity - The multiplatform game creation tools for everyone.
Allegro - Allegro 4 and Allegro 5 are cross-platform, libraries mainly aimed at video game and multimedia...
Unreal Engine - Unreal Engine 4 is a suite of integrated tools for game developers to design and build games, simulations, and visualizations.
WADE - The easiest 2D and isometric HTML5 engine to make amazing web games and apps. Free and open source.
GDevelop - GDevelop is an open-source game making software designed to be used by everyone.
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.