Gen Con 2015 opens — game on!

Gamers line up for the opening of the doors at Gen Con 2015, held at the Indianapolis Convention Center, Thursday, July 30, 2015.

Gamers line up for the opening of the doors at Gen Con 2015, held at the Indianapolis Convention Center, Thursday, July 30, 2015.

Fifty thousand gamers stream in to halls for the opening of the doors at Gen Con 2015, held at the Indianapolis Convention Center, Thursday, July 30, 2015.

Fifty thousand gamers stream in to halls for the opening of the doors at Gen Con 2015, held at the Indianapolis Convention Center, Thursday, July 30, 2015.

Fifty thousand gamers stream in to halls for the opening of the doors at Gen Con 2015, held at the Indianapolis Convention Center, Thursday, July 30, 2015.

Gamers quickly line up after the doors open for a chance to play the newest games at Gen Con 2015, held at the Indianapolis Convention Center, Thursday, July 30, 2015.

Gamers play Legendary Predators at the Upper Deck booth Gen Con 2015, held at the Indianapolis Convention Center, Thursday, July 30, 2015.

Nick Lewis dresses as the fourth Doctor at Gen Con 2015, held at the Indianapolis Convention Center, Thursday, July 30, 2015.

Gamers visit the Tower of T-Shirts at Gen Con 2015, held at the Indianapolis Convention Center, Thursday, July 30, 2015.

Amy Hase, Bubby Johanson and Ryan Zalar check out the Fire Fly game at the at Gen Con 2015 at the Indianapolis Convention Center, Thursday, July 30, 2015.

Sales associates Josh Liard, left, and John Foster at the Son of Sandlr booth at Gen Con 2015, held at the Indianapolis Convention Center, Thursday, July 30, 2015.

Brittany Fenrich poses for a photo at Gen Con 2015 at the Indianapolis Convention Center, Thursday, July 30, 2015.

Michael Dettlaff, left, and Zachery Hettmann, center, and Kati McCleary with the Voodoo Bunny Co. check out the Incredible Expeditions booth at Gen Con 2015, held at the Indianapolis Convention Center, Thursday, July 30, 2015.

Steve Bodney attends Gen Con 2015 at the Indianapolis Convention Center, Thursday, July 30, 2015.

Robert Chandler II airbrushed terrain for the Dead Zone game at Gen Con 2015, held at the Indianapolis Convention Center, Thursday, July 30, 2015.

A griffin Cable puppet sits on the shoulder of Shari Johnson at the Mid Summer Knights Dream booth at Gen Con 2015 at the Indianapolis Convention Center, Thursday, July 30, 2015.

The Water Street Bridge group plays at Gen Con 2015 at the Indianapolis Convention Center, Thursday, July 30, 2015.

Cole Bergess, left, dresses as a Skyrum Mage and Trinity Britton dresses as Tiny Tina at Gen Con 2015, held at the Indianapolis Convention Center, Thursday, July 30, 2015.