Buy Surviving the Aftermath Ultimate Colony Upgrade now! You will receive the key for the DLC by Paradox Interactivevia eMail within the stated delivery time. Get amazing bonus contents for the game Surviving the Aftermath by purchasing the Ultimate Colony DLC. Download Surviving the Aftermath Ultimate Colony Upgrade for free via the Steam network. Steam can be found here. The original game (not included in this offer) is required to use, respectively, play the contents of the DLC. This is an EU key that can only be used / activated within Europe.