The Exoplanets map pack includes six custom maps inspired by real-world exoplanets. Specialized scripts produce randomized geographic layouts each time a new game begins, allowing for even more replayability on new alien worlds.Maps include: Kepler 186f: This lush forest planet is one of the oldest known Earth-like planets.
Open the Steam client, login and locate the Games tab on the top menu. Click this and then select “Activate a Product on Steam…”
Enter your unique code that's displayed on the 'Orders' page of CDKeys.com and follow the prompts to activate.
Your game is now viewable in the “Library” tab and is available to download/install when you’re ready. You can find additional support for the Steam client here: https://help.steampowered.com/en/wizard/HelpWithSteam