If active means actively in games then Atem is really the only one I have at all

If we mean muse that is still around and I could pick up reasonably quickly that probably goes to Elenor Silverberg of Suikoden

who was a durnk, old, boss of a tactician in the less than stellar fourth game. She was really fun for sassing people.

Random facts, I still have the original incarnation of Atem that I played as well. He was something of a historically accurate AU (no card games) turned... demon... thing. It was kind of terrible.

But certain aspects of his development actually really helped me dissect his character and play him better in the long run. So. He hangs around.

How about your most played but not necessarily currently active muse?

Bwaa just saw this huh. That would definitely still be Atem since YGO is my longest running fandom and I've had him just about since I joined it

Although in varying forms

Okay then, how about the most played character outside of YGO?