The fee depends on the number of actual participants at the event (more participants = lower fee). Register by commenting on the Twitter thread linked above or by messaging the tournament organizer.
19:30 Venue opens
20:00 Main event begins
23:00 Clean up begins
24:00 Venue closes, all participants must leave
You must pre-register on Twipla (see Button above) to participate in the tournament. If you have any questions or need to cancel your registration, contact @bidalwwwwwwwwww on Twitter