Jupiter’s dead moon isn’t finished with you yet. Enhance your experience with The Callisto Protocol’s Season Pass. Features Outer Way Skin Collection: Bear the armor of the Outer Way, an underground insurgency pitted against the UJC, as you fight to survive the horrors of Callisto. Contagion Bundle: Discover the ultimate survival horror experience with a new mode, Contagion. With reduced ammo and health drops, a customized difficulty and permadeath – there are no second chances to escape Black Iron Prison or the horrors lurking beneath the surface of Callisto. The Contagion Bundle also includes thirteen new Jacob death animations and the Watchtower Skin Collection. Riot Bundle: Venture into a previously undiscovered area of Black Iron Prison and battle through waves of brutal enemies. Gather credits to upgrade your weapons, or forge new ones, and survive the onslaught as long as you can in Riot, an all-new mode. The Riot Bundle also includes twelve new enemy death animations and the Engineer Skin Collection. Story DLC: Dig deeper into the horrifying secrets of The Callisto Protocol.

Go to: http://store.steampowered.com/ and download STEAM client Click "Install Steam" (from the upper right corner) Install and start application, login with your Account name and Password (create one if you don't have). Please follow these instructions to activate a new retail purchase on Steam: Launch Steam and log into your Steam account. Click the Games Menu. Choose Activate a Product on Steam... Follow the onscreen instructions to complete the process. After successful code verification go to the "LIBRARY" tab and start downloading.