In 2006, PlayFirst launched Playground SDK, a game engine released the version 1.0. The first game to have been created with Playground SDK as Diner Dash 2: Restaurant Rescue, first released in January 18, 2006, to compete against with an other game engines such as PopCap Games Framework. This is the first game to use the Playground SDK application after replaced from Adobe Shockwave in that year.
