Items included in this bundle:
Counter-Strike: Global Offensive
Counter-Strike: Source
Counter-Strike
Counter-Strike: Condition Zero
1. Launch Steam and log into your account or create a new one (download Steam).
2. Choose "Games" from the menu and "Activate a Product on Steam".
3. Follow the onscreen instructions to complete the activation process.
4. You can find your new game in the "Library" tab.