The Tomorrow War is a space sim based on the trilogy of novels written by a famous Russian author, Alexander Zorich. These books are dedicated to the intergalactic war of two mighty empires. Along with the graduates of the military-space academy players will witness different stages of the conflict between United Earth Empire and...
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