Create, discover, and download new player-created maps, scenarios, interfaces, and more!

The threequel to the party game phenomenon features the deadly quiz show Trivia Murder Party, the say-anything sequel Quiplash 2, the surprising survey game Guesspionage, the t-shirt slugfest Tee K.O....

Sequel to the best-seller ​The Red Solstice​. Plan your strategy and infiltrate a real-time tactical battlefield - alone or with up to 7 squad members. Can you demonstrate the combat prowe...

The year is 2047. A massive nuclear fireball explodes high in the night sky, marking the dramatic beginning of the Third Tiberium War and the long-awaited return of the most groundbreaking Real-Time S...

Isle of Siptah is a massive expansion to the open-world survival game Conan Exiles, featuring a vast new island to explore, huge and vile new creatures to slay, new building sets, and a host of new fe...

Age of Mythology is back! Choose your god and take to the battlefield in this classic, upgraded with full Steamworks integration and enhanced features.

There will be challenges to overcome. Execute your strategy and improve your colony’s chances of survival while unlocking the mysteries of this alien world. Are you ready? Mars is waiting for yo...

SimCity 4 Deluxe Edition includes the bestselling SimCity 4 and the all-new SimCity 4 Rush Hour Expansion Pack. Create the most massive region of cities ever, with a farming town, bedroom community, h...

Biped is a coop action-adventure game that strongly focuses on moment-to-moment collaboration between 2 players.

Plague Inc: Evolved is a unique mix of high strategy and terrifyingly realistic simulation. Your pathogen has just infected 'Patient Zero' - now you must bring about the end of human history by evolvi...