After payment you will instantly get a link to automatically activate your license Gift Killing Floor on Steam.
Steam Gift Killing Floor has no regional restrictions [REGION FREE], and activated absolutely in any country!
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Game Description Killing Floor
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Killing Floor - Condominium horror-survival shooter with a first-person, which is unfolding in the streets of abandoned cities and suburbs in Britain shortly after the failed experiment to build and clone "super soldiers." You and your comrades - members of the Armed Forces, dropped into these locations with a simple goal - to survive as long as possible by stripping the drop zone from the consequences of a failed experiment!
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Activation Gift´a:

1. You need to download and install Steam - http://steampowered.com/download/SteamInstall.msi (if not already installed)
2. Register your new account on Steam or go to an existing one.
3. Activate Gift-link after payment received in your browser (copy and paste into your browser).
4. After this, you can either add the game to your library (you can immediately start playing), or to keep the inventory (can be activated at any time to share with others by Steam or give to friends).
4.1. Activate Gift-that game (if you choose "Leave the inventory")
4.2. Enter the inventory -> "select the desired Gift" -> "Add to my library"