Phun is just a playground for the creative mind where virtually any 2D toy can be easily created. Watch the video and you'll get it all. Even if it looks like a game, it isn't... well... not entirely. Phun was created as a MSc project by Emil Ernerfeldt for supervisor Kenneth Bodin, HPC2N/VRlab, Umeå University, Sweden. You can download Phun for free at www.phun.at
And Phun is multi-platform: it is available for Windows, MacOS and Linux.