Secrets of the Lost Tomb Preview from GenCon 2015

About Secrets of the Lost Tomb, from BoardGameGeek:

Secrets of the Lost Tomb is a cooperative game of thrilling action-adventure and discovery. Players assume the roles of stalwart expedition members working together to investigate ancient mysteries, while surviving dangers and shielding humanity from the supernatural powers of The Tomb-an ancient vault filled with primeval powers perpetually struggling to be set free upon the world. Powers that mankind should never behold… Secrets is a tile laying game that allows players to build the tomb tile by tile, creating a new game board and adventure every time. The game is designed for one to six people, each of whom plays one of six possible Adventurers, each with unique powers, abilities, starting items, and attributes. With the main Cooperative Story Mode and 2 Competitive Modes of Play, many unique Adventurers to choose from, over 50 unique and detailed room tiles, over two hundred tokens, and over three hundred cards, Secrets of the Lost Tomb offers an Ever-Evolving, EPIC, Tomb-Crawling adventure every time you play.