The Powder Toy is a classic physics sandbox game, which simulates air pressure and velocity, heat, gravity and a countless number of interactions between different substances

Released 2011. See also Trainz A New Era and TRS19.

Create, Collect, and Crash in Autocraft, a physics destruction sandbox. Create your own cars, rockets, tanks, planes, boats, and more.

Ride into a hilarious construction puzzler; packed with over 100 creative physics-based challenges, sports and bloody disasters! Build contraptions to help every passenger reach their destination. Enjoy the sports by controlling your riders away from (or towards if you feel like it) peril!

Crazy Machines 3 is the latest, greatest, most amazing and craziest part of the series and fascinates once more with physic-based puzzles. Build your own crazy machines and share your awesomeness across the world thanks to the Steam® Workshop.

Shoot, stab, burn, poison, tear, vaporise, or crush ragdolls in a large open space.

I am excited to release my first game on Steam! SimpleRockets was released in 2013 for mobile and I've put a ton of work into it to get it ready for PC and Mac. It was inspired by KSP, and it offers a simpler 2D experience for building rockets and exploring space with realistic orbital mechanics.

As an Ethereal Estate agent, your job is to make a mess out of a mansion and its helpless inhabitants. Never before has a ghost unleashed such devastating chaos... until now!

Build and fly realistic aircraft. Use free-form fuselage and wing editor tools and tune your engines to recreate aircraft from any era or design your own.