About the game

The subway has been overrun by an infected population who are lead by cyborg masterminds. You feed off the pain you inflict and have become known as Pain Train. This enables you to take on hordes of infected that would otherwise overrun a normal man. Shoot your way through 12 gore packed levels, complete side missions, unlock new weapons, beat multiple difficulty modes, and defeat all of the cyborg masterminds. Pain Train is entering a subway station near you, "All Aboard!"

How to activate

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.

System requirements