Get 50 additional classic Atari releases never before available on PC!These rarities include 14 vintage Atari arcade games from the 70s, 16 Atari 5200 titles, 12 Atari 2600 games from M Network, and 8 prototype and limited-edition homebrew games for the Atari 2600. As with the original 100 games in Atari Vault, enjoy a richly configurable experience, online multiplayer, and scans of original manuals and boxes.Games in this add-on collection: 14 Arcade games: Avalanche, Atari® Baseball, Atari® Basketball, Canyon Bomber®, Destroyer, Dominos, Fire Truck, Atari® Football, Maze Invaders, Monte Carlo, Pool Shark, Sky Diver, Atari® Soccer, Super Bug 16 Atari 5200 games: Asteroids®, Centipede®, Countermeasure, Final Legacy, Micro-Gammon, Millipede®, Miniature Golf, Missile Command®, Realsports® Baseball, Realsports® Basketball, Realsports® Football, Realsports® Soccer, Realsports® Tennis, Star Raiders®, Super Breakout®, Xari Arena 12 M Network games for the Atari 2600: Air Raiders, Armor Ambush, Astroblast, Dark Cavern, Frogs and Flies, International Soccer, Sea Battle, Space Attack, Star Strike, Super Challenge Baseball, Super Challenge Football, Swordfight 8 prototype and limited-edition homebrew games for the Atari 2600: Adventure II, Aquaventure, Frog Pond, Holey Moley, Motorodeo, Saboteur®, Wizard, Yars' Return

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 "LIBRARY" tab and start downloading.