"Reflex Arena is a return to roots, pure, fast, first person shooter. You will be pushed to your limits facing other contestants in a range of rich and diverse arena-base environments. Delivering a truly rewarding experience based purely on your skill and success. Train to unlock your genetic potential and bring it online for the ultimate proving ground and make your mark. There are no limitations in Reflex Arena, the true evolution of the classic arena shooter genre."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.