You buy the official activation key for Steam, Team Fortress 2 as a scanned image of the box with the licensed game from Buka.

Team Fortress 2 - continuation of the legendary game Team Fortress Classic, where the main emphasis is on team play. This is one of the best games in the class action, Team Fortress 2 delivers new gameplay, stylized animation collection and storage statistics for each player, and much more.
Unlike klassozavisimyh games, which basically amount to an armed conflict of these classes, Team Fortress 2 offers several playable characters, each endowed with its own special abilities, their level and style of play.
Play instigator of all life, a machine gunner, or Spy - the great master of disguise. In this game, everyone can find to your liking.

Activation Key:
1. Download and install Steam - http://store.steampowered.com/
2. Register your new account on Steam or go to an existing one.
3. Go to the "My Games" and select "Activate via Steam", enter the key.
4. After activating the game appear in the list of games and you can download it from Steam.

NOTE: This is the official version of the company "Buck" - it has a territorial restrictions (suitable only for Russia and CIS countries)!
After activation serial key in the steam, the key becomes not valid, ie, re-use it is no longer possible, so be sure to remember all the details of your account! Without them, you will not be able to gain access to active games in the future.