The army of fearsome soldiers from the Jorvik Centre, in York, marched in to the town on Saturday determined to take over.
The mighty warriors even challenged shoppers to a duel - but only with foam swords.
The invasion was part of the Jorvik Centre's summer tour which is visiting towns and cities in the North to teach people about a fascinating period in history.
Emma Hunt, whose Viking name is Hallgerd, was one of Jorvik's less frightening invaders.
"We come along and teach people and children especially a little bit more about Vikings and that period in history," she said.
"Obviously the kids love the battles and fighting but they are also interested in how the Vikings carried out their everyday lives as well.
"I am dressed as a wealthy Viking. Only rich people wore blue because the dye was very expensive to get hold of.
"The role of the woman in Viking society was very interesting. They would live until they were about 35 and usually died in childbirth. They would be married by the time they were 12.
"But some things never change - the Viking woman looked after the money in the household."
People could also learn about Viking gods including Odin and Hell.
The day ended with a gory fight recreation as the Vikings clashed with an equally battle-hardened mob - Norristhorpe girls' and boys' junior football teams.
The youngsters did battle with the bloodthirsty Vikings, but to make sure none of the Nordic warriors hurt themselves the children agreed only to use foam swords and shields.