A New Jersey middle school teacher has been arrested for allegedly sexually assaulting a 17-year-old boy he met playing the popular kids’ video game Roblox, authorities said.

Juan Sanchez Moya, a teacher at West New York Middle School, was nabbed on a slew of sex crimes charges at his home in Union City on Tuesday, according to the Hudson County Prosecutor’s Office.

The 26-year-old teacher allegedly started exchanging explicit photos with the teen after they met via the online gaming platform before he went on to assault the boy in his garage in April, a criminal complaint obtained by NJ.com charged.

Moya also allegedly “sexualized” the boy in an Aldi supermarket bathroom in North Bergen late last month, authorities said.

Text messages show that Moya also tried to arrange to meet the teen again near a Crunch Fitness, according to the complaint.

Cops started investigating after the teen’s mom alerted them in late May.

“The crimes did not occur at the West New York Middle School and the victim is not a student in the district,” prosecutors stressed.

Moya has been charged with two counts of endangering the welfare of a child and distributing obscene material to a minor.

He is being held at the Hudson County Correctional Facility pending his first court hearing.

West New York Middle School did not immediately respond to a message seeking comment Wednesday.