'Dungeons & Dragons' is a cornerstone of big-business nerdworld. A top exec says Wizards of the Coast has a plan to keep the game hot for 50 more years.

"Dungeons & Dragons" has been a hit for 50 years, with its latest products exceeding expectations. Hasbro's acquisition of D&D Beyond is boosting direct consumer revenue. The company plans to keep the game fresh with new content and digital tools to cater to different player demographics.