Merlin also opened the Shanghai Dungeon in September.

The attraction is based on the popular London Dungeon horror house in the United Kingdom, which incorporates gallows humor into grim historical re-enactments.

Ben Sweet, Merlin's new openings director for Asia, said that, due to differing tastes, the Shanghai Dungeon has less blood and gore than its British counterpart.

In its latest attempt to allure more Chinese visitors, Merlin Entertainments recently partnered with Alipay, China’s largest mobile payment platform, in a deal enabling tourists from China to make payments in their home currency to purchase both tickets and souvenirs across all of Merlin’s London attractions, including London Eye, Madame Tussauds London, the London Dungeon and more.

As the company's jubensha app is the first of its kind to have an online dungeon master, or host, it worked with the Shanghai Theatre Academy to launch DM trainings.

Global free-to-play games revenue saw a 6 percent increase to $87.1 billion last year, with Epic Games' Fortnite ($1.8 billion), Nexon's Dungeon Fighter Online (1.6 billion) and Tencent's Honor of Kings ($1.6 billion) ranked in the top three spots, according to a recent report from data analytics company Nielsen's SuperData Research Group.

The attraction is based on the popular London Dungeon horror house in the United Kingdom, which incorporates gallows humor into grim historical reenactments.