Tank Operations: European Campaign is a turn-based, tactical wargame featuring a dozen nail-biting historical scenarios set on the diverse battlefields of World War II. With more than 50 faithfully-rendered, authentic military combat units, along with sabotage options and the need to manage your supply chain, the game will keep armchair generals occupied for hours in realistic combat scenarios.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 “MY GAMES” tab and start downloading.