hello everyone im looking too buy king of fighters xiii im sure too like this game but i need too know how the game run online on steam and also how too know the amount of population playing the game online because i dont wante too buy the game and be alone online lolol thank you 
Take a look here for some online Steam matchmaking.
http://dreamcancel.com/forum/index.php?topic=3006.0
already buy and very happy too support this game
thank again /bow