28 Waves Later – Try to survive when there’s a swarm of monsters coming at you! Zombies won’t let you rest even for a minute. Imagine you’re in a closed space and zombies are closing in on you. You can use 9 types of weapons. Only one case of ammo. Kill zombies to get weapons, medkits and ammo. Pass increasingly difficult levels. Perfect your game skills. Be cool, play and reach your goals in the game. Even the most bloodthirsty zombie hunters will like this game.

— Activation Details —

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.