GameSync Esports Center, 3519 El Cajon Blvd. June 14th. The Monthly Tabletop Open is the version of game night that doesn't end at midnight because someone decided to keep the venue open — a real gaming space, a rotating selection of tabletop titles, and the specific pleasure of showing up without a plan and finding out what everyone else is already playing. The GameSync Tabletop Open runs with a library that covers more ground than any one group's collection: competitive titles, co-ops, deck-builders, heavy strategy games that require the full table and the full evening. The staff knows the games and will teach anything on the floor. New players show …