Super Street Fighter IV Arcade Edition, brings the definitive vision of Street Fighter® to the PC. The follow-up to the critically acclaimed Super Street Fighter® IV will further redefine the fighting game genre with classic 2D Street Fighter fighting action, a host of new and returning characters, beefed up online modes, and more. Super Street Fighter IV Arcade Edition features a roster of 39 characters. This includes characters from the original Street Fighter IV such as Ryu, Chun-li, El Fuerte, and Rufus, while adding the 10 characters from Super Street Fighter IV and 4 new characters, including classic combatants Yun, Yang, and Evil Ryu as well as the all-new Oni. Beyond characters, Super Street Fighter IV Arcade Edition adds all-new balancing, better online functionality, and the fully-featured Replay Channel, on the PC for the first time. (After activation the game is displayed in Steam library as Ultra Street Fighter IV) Feature New Playable Characters: Four new challengers enter the ring: Yun, Yang, Oni and Evil Ryu. Updated Character Balancing: Features all new character balancing, further refining gameplay. Replay Follower: Be able to follow up to 5 separate player replays making it easier to find your favorite players’ latest replay. My Channel Advanced: Allows players to distribute their replay data to up to 50 players. Elite Channel: Watch replay data from elite players who have a rating of 3000PP (player points) or more

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.