I haven't heard about this before today.
There is a game making tool called "Game Maker."
The recent version is 7 now.
It is free to download.You can see 100 games that are made by the tool in you tube.
100 Game Maker games in 10 minutes.
The movie clip inspires me a lot of new ideas for game design.
And it is also surprising that a game tool is that much flexible.