Single Player RPG'S Popular?

Single Player RPG'S Popular?

I want to know if single player RPG'S are popular, because I am planning on making one and dont want to waste my time with something no one will ever play.

As far as single player goes, campaigns typically get more attention then single maps, but RPG still get more downloads then anything else...
-VGsatomi

Thanks, the style im using for my RPG is multiple levels you can almost call it a campaign but im gonna keep it in RPG format.