The Sword of Halcyon The Space Marine Vessel, The Sword of Halcyon, left the orbit of planet Falkhan and prepared for the journey back to its homeworld. Upon entering the warp The Sword of Halcyon jolted suddenly and came to a halt. Instantly the ship’s alarms rang and all aboard prepared for the worst.
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