Sf4pc digital download problems plz help


so i went on capcom.com and purchased sf4 pc digital download for 40 bux and about 10 min i got a receipt and a serial number of my purchase i was wondering wtf i do now is there something i need to do to install the game because i have nothing but a dam serial number plz help!!!


Is it a number for steam? If you don’t know go to steampowered.com and get steam. You might have to activate it through that