On Thursday more than 3,000 players met up in the capital's Puerta del Sol from 7pm to participate in the biggest Pokémon hunt the world has ever seen.
Oganisers estimated that up to 5,000 players descended on the square to catch Pokémon together and fight other players, easily beating the record previously held by Sydney, Australia.
The meeting was originally planned for the Retiro park, but city authorities denied authorization for a large gathering in what it said was a “protected environmental space”.
Instead, organizers set up mobile charging stations and distributed free water as temperatures topped 38 C.
City parks and tourist sites have been inundated with crowds glued to their smart phones as they play the latest craze.
Spanish police have even released guidelines in an attempt to limit accidents by those to immersed in the virtual reality game to pay proper attention to their surroundings.