You can download the Total War: Shogun 2 in Steam without using the disc using the game code you have from your purchased game.
- Download the Steam client:
- Install Steam on your computer
- Once installed, open up Steam
- Click on + ADD GAME
- Go to Activate a product on Steam
- Enter your Activation Code found on the back of the manual.
- Steam should now download your game.
* Please be advised that the download of Total War: Shogun 2 may exceed 20 GB.