Hello and apologies for the delayed response. This is a flexible setup which depends on the creativity and intent of the group and GM involved. It can be a solo run with 1 GM and 1 Player, or it can run with a GM and multiple (2-6), or more depending on how the group decides to set up their game.
Run time generally lasts between 1 hr, for a single encounter/obstacle scenario, or 3-5 hrs for a more prolonged session encountering several obstacles in play.