Treads is an arcade-style game based on the ideas and mechanics of Greebles, which is now abandonware. Your goal in each level is to destroy the enemy tanks, usually by squishing them with blocks. But watch out - the enemies will kill you on contact, and the blocks bounce and can squish you too! Building from source: - Install Xcode (or some other variant of GCC). - Install GLFW (http://www.glfw.org/). - Run `make`. This will create Treads.app. - Run treads.app. Play the game. Be impressed with the graphics and sound.