Crazy Engineer

Crazy Engineer is a sandbox game where you build chain reaction machines from objects such as old toys, books, planks, balls and tape. You can place several types of actors wherever you want and arrange objects to create your own contraptions without limitations.

If a machine does not work, you can reload your game from before starting the chain reaction and change what failed. You can share your creations with friends, upload them to the internet or keep them to yourself; there is no real house to clean afterward.