elaboration: prior to like a year ago the only arc system works Fightan on Steam was the original blazblue, calamity trigger. Then recently, they released Guilty Gear Xrd on Steam, and that picked up interest, so they followed suit with the ultimate version of continuum shift (cs extend), the ultimate version of blazblue 3 (chronophantasma extend), and then Guilty Gear xrd Revelator. The last blazblue, CF, came out recently on ps3/4, and theres plans for it to go on Steam, but its not out yet.
Thank you very much! The picture is now CLEAR, and I can SEE.