LÖVE 2D is a free, open source game framework available at https://love2d.org.

Love is a very powerful 2D framework for making games with Lua. It is built on top of SDL, making both cross-platform support and gamepad support very reliable. Love is a very small and easy to use framework, it's well suited for both beginners and professionals alike. Love has a Wiki, which serves as a getting started guide—it is online at https://love2d.org/wiki/Main_Page.