http://store.steampowered.com/app/365440/ Platfinityâ„¢, fast & easy game creation! Create your own platform games, quick & easy! Move to play, click to edit. One click export to sell or share your games! Multiple Tile layers, Platform, Moving and Rotating Hazard objects. Create your own graphics with the built in painting tools or import graphics from the disk. Use the Retrofilter to double or quadruple pixels to give your creations that vintage look. Includes the Demo Games: "Proving Grounds of the Mad Game Designer" "Purgatory" "8 Bit Love Affair" "Ghost in the City" by George Dziov
Activation Instructions: 1. You need to download and install Steam http://steampowered.com/download/SteamInstall.msi 2. Go to your account or register a new one. 3. Go to the "My Games" and select "Activate via Steam ...", and enter the key received after payment. 4. Once activated, the game will appear in the game list (Library) and you can download it