My first thought was the same. I saw potential for an online version. But Soularium was made to be a conversation. I cannot see it being a stand alone piece. Now if you could figure out how to make it a conversation tool with chat or some ongoing online dialogue, I could maybe see that working.

But I think it works best as a face-to-face conversation.

BTW, I am the designer and builder of the MySoularium site. Thanks for highlighting it.