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

Zachtronics Industries is back with an ambitious new design-based puzzle game. Take on the role of a Reactor Engineer working for SpaceChem, the leading chemical synthesizer for frontier colonies. Construct elaborate factories to transform raw materials into valuable chemical products!

From Single Cell to Galactic God, evolve your creature in a universe of your own creations. Play through Spore's five evolutionary stages: Cell, Creature, Tribe, Civilization, and Space. Each stage has its own unique style, challenges, and goals.

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.

Schoolgirls fight aliens with the power of science! When an alien invasion targets a private school after hours, only the members of the Science Club stand ready to defend their homeworld from the leafy menace. Gather up your team of specialists and face off against monsters in classic console turn-based combat.

Explore the rocky terrain and sandy wastes of Mars in this brand new installment to the Take On series. Developed by the creators of the award-winning Arma™ series and DayZ™, Take On Mars places you right in the middle of mankind's most exciting undertaking. Start out in the seat of a rover operator, pushing your vehicles to the max.

Find and rescue your uncle by using his newest invention to work your way through a crazy complex mansion as you switch between dimensions and solve puzzles!