Jonathan Chey who was an Irrational Co-Founder and served as director of development on BioShock has joined forces with other industry veterans to create a "virtual team" located all around the world. Their first game, Card Hunter, has released on Steam today and comes with discounts and its first expansion, Expedition to the Sky Citadel.

Formerly only available as a browser-based game, the critically lauded combination of card play, deck building, tactical combat and classic fantasy role-playing can be downloaded for free and played via Steam with all the benefits the platform brings, such as achievements and badges.

Across all platforms, brand new expansion Expedition to the Sky Citadel also launches to coincide with the Steam release, along with the long awaited co-operative mode. The new expansion introduces rebellious computer Cardotron 2000, a perfect Game Master from corner to corner of its magnificent 4K of RAM. Cardotron 2000 has no intention of manipulating the game to ensure its army of mutants and uncontrollable robots take over the land of Cardhuntria. Nor was Jonathan Chey, co-creator of Card Hunter, in any way inspired by SHODAN, the megalomaniacal artificial intelligence he and the other co-founders of Irrational Games helped breathe renewed life into back in 1999 for System Shock 2. (Well, maybe a teensy bit.)

Three add-on bundles have been created in celebration of the release of the expansion and the game coming to Steam:

• Basic Edition bundle (adds new Treasure Hunt adventures, club membership, extra figures and in-game currency) – $19.99, discounted from $25.
  
• Attack of the Artifacts expansion bundle – $12.99, discounted from $15.
  
• Expedition to the Sky Citadel expansion bundle – launching at the same discounted price, $12.99.

Watch a trailer for the game and its expansion on Steam embedded below.