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.

RetailMenot - The RetailMeNot mobile app allows you to find deals on the go for both online shopping and in store shopping.

SDL - Simple DirectMedia Layer is a cross-platform multimedia library designed to provide low level...

Slickdeals.net - Slickdeals: The Best Deals, Coupons & Discounts on everything

raylib - Cross-platform, open-source game development library in C.

Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.