HEPScape is an escape room about particle physics built in 2021 by a team of INFN researchers. The visitors have the impression of entering one of the experimental control rooms of the Large
Hadron Collider at CERN. Through clues hidden in the room, and with the help of a moderator, they discover the purpose of high energy physics and how particle accelerators work. HEPScape
is made of portable equipment and this allows to use it in science fairs, exhibitions and schools. The experience from three science fairs in Italy is presented.