Is there a specific player count needed? Could one play games solo? Thanks!
I don't think that's my call to make. Can you play it solo? I certainly won't stop you, it just depends on whether you feel ready.
All of these are games I learned to play with other people, however. It might be a challenge to adapt to solo experiences. I encourage you to check out Angelica Esoterica, Jammi's response to this game, which is designed for roughly solo play.