Lift is a flight sandbox game. It is based on real world physics, but what you build is completely up to your imagination - from Superman to WWII bombers and everything in between. Compete against your friends in challenges, or play in sandbox mode where anything goes. Time manipulation and plane destruction features allow you to watch your beautiful creation crumble into dust frame by frame when you crash. Early alpha versions are free to play and will be released in Web, PC, and Linux form.
A collection of gifs and screenshots of user created planes.
This is what happens when a plane goes too fast for its own good. It blows up and parts go flying. You can see the wing physics in action here as each wing falls off and flies on its own.