Physics

A frantic adventure. Welcome to the Upturned Inn: a grand hotel for the dead! You just want to find your room.

The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!

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

Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most innovative new games on the horizon and will offer gamers hours of unique gameplay.

VTOL VR is a near-futuristic combat flight game built for Virtual Reality. Pilot advanced multi-role jets, using your hands to flip switches, press buttons, and manipulate the virtual flight controls.

A 3D pet simulation where you raise your own personal hive of mutating dogs, physically simulated all the way down to their guts! Wobbledogs is a casual and chill sandbox for players of all ages who want to care for their very own virtual pets in a surprising, unique, and stress-free environment.

The Steam Engine Simulator shown on AngeTheGreat's YouTube channel.

A juicy first-person incremental game about growing berries and tossing them down an ominous hole. Earn money and upgrades. Make new friends with sentient berry pals. Grow and control the hole as you unearth why nobody leaves this accursed garden. Bury it all, Berry everything.

Puzzle platformer where you control both the cat and the toast, based on the famous "Buttered Cat Paradox". The game features 200+ levels, 70+ skins, plus boss fights and mini-games!

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

A dynamic soft-body physics vehicle simulator capable of doing just about anything.

Reawakened from stasis in the occupied metropolis of City 17, Gordon Freeman is joined by Alyx Vance as he leads a desperate human resistance. Experience the landmark first-person shooter packed with immersive world-building, boundary-pushing physics, and exhilarating combat.