DOOM Eternal Game Keys

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.

Raze Hell with the Rip and Tear Pack and get in-game cosmetic items and additional single player content. This pack contains: DOOT Revenant Skin, a premium player demon skin for use in BATTLEMODE Cultist Base Master Level, a remixed version of the campaign level with new challenges, combat encounters, and surprises Throwback Shotgun Weapon Skin, bring DOOM's classic shotgun to bear on DOOM Eternal's demon hordes