Pokémon GO Summer
Entire offices going for a walk at lunchtime.
An augmented reality game that briefly turned every park in Britain into a crowd scene.
For about six weeks in the summer of 2016 the streets genuinely changed. Groups of adults stood around statues and postboxes and nobody thought it was strange.
Battery packs sold out. So did trainers, allegedly. The servers fell over constantly and nobody minded.
Cost back then
Free, plus in-app purchases
Goes for now
Still running, quieter