York Dungeons says guests can buy £10 tickets from Thursday, November 23 until November 27.
According to the Dungeons' website, before the discount deal a standard ticket - for an adult, booked in advance would have costed from £21.
Owner Merlin Entertainments said that discounted tickets will be valid for visits until March 15, 2024, but that this offer excludes the February half-term period.
The site in Clifford Street is home to shows which explore the dark secrets of York’s past.
Organisers say there are up to ten walk-through live actor shows which cover the story of 2,000 years of the history of York.
To redeem the Black Friday offer, people can visit www.thedungeons.com/york/whats-inside/events/black-friday/
Full terms and conditions are on the York Dungeon Website.
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