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Pokemon Go Fest is now a 4-day monster-catching affair

Trainers could be packing up their Poke Balls and heading to Chicago or Dortmund, Germany.

Pokemon Go Fest screenshot
Pokemon Go Fest is expanding to four days.

Pokemon Go Fest is making its return in 2019 as part of the Pokemon Go Summer Tour. 

The event, which brings together trainers to catch the fictional creatures, is headed to Chicago's Grant Park and is expanding to four days (June 13-16) from the original two. It's also coming to Dortmund, Germany, July 4-7, organizers said Thursday.

"Last year's Pokemon GO Summer Tour brought hundreds of thousands of Trainers together at real-world events around the world which left us with some truly unforgettable moments and stories," said John Hanke, CEO and founder of Pokemon Go maker Niantic.

There will also be events in which trainers can participate from afar, as well as worldwide "Community Day" events. 

Pokemon Go, an app that lets folks try to catch Pokemon characters in augmented reality using their phones, was a big hit in 2016, nabbing 55 million mobile users in its first month.

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