Level EditorCreate your own level, construct building, create gameplay with objectives, place music, create race track and more Steam WorkshopShare your own level into the Steam Workshop and play to all others levels create by the community. Online COOP 4 PlayersPlay with your friends in the mini games and create together levels and gameplay. 8 Mini Games Ragdoll Building Falling Racing Hammer Corridor Fart As you Can Jetpack Giant Ball Spring, Spring, Spring... The Maze

Go to: http://store.steampowered.com/ and download STEAM client Click "Install Steam" (from the upper right corner) Install and start application, login with your Account name and Password (create one if you don't have). Please follow these instructions to activate a new retail purchase on Steam: Launch Steam and log into your Steam account. Click the Games Menu. Choose Activate a Product on Steam... Follow the onscreen instructions to complete the process. After successful code verification go to the "MY GAMES" tab and start downloading.