Today, various groups of trainers went to Chicago Grant Park for the biggest gaming event of the year, the most awaited Pokémon GO Fest's Catch Challenges. There are plenty of reasons for trainers all over the world to be interested in this challenging event. Here's everything you need to know.

The event

Pokémon GO Fest began at around 9 AM in Chicago and 3 PM in the UK. All the interested players who are not lucky enough to attend The Event can tune into live streaming see the event unfold on Twitch. “Join us live from Grant Park in Chicago, IL for Pokémon Go Fest 2017!" the official Twitch TV Website said.

It also mentioned that they would be covering every piece of the happenings in the event especially the gym battles. They will be monitoring the progress of the biggest gaming event.

Niantic, the American software development company of augmented reality mobile games such as 'Pokémon GO' is expected to introduce legendary Pokémon at the event. Aside from that, the giant company is also expected to reveal Legendary Raids together with the assumed schedules.

The schedule

As announced by the officials, there will be three Challenge Windows at the event. Trainers that are physically present will work alongside with the trainers so they can unlock global rewards.

  • Challenge window #1: 11 AM
  • Challenge Window #2: 1 PM
  • Challenge Window #3: 3 PM

If trainers outside Chicago get the chance to catch enough pocket monsters during the 'Pokémon GO' Fest Challenge Window 1, 2, or 3, the first Legendary Pokémon will be revealed officially in the venue.

However, if the lucky trainer in the venue succeeds in defeating a specific Legendary Pokémon, that monster will start appearing in Raid Battles all around the world, starting on July 23, 2017.

All the trainers, as well as Pokémon GO enthusiasts, are very excited about the Legendary pocket monsters that will be revealed. In fact, Niantic is also excited about it.

"We’re excited to reveal that Legendary Pokémon is nearly here!" the company wrote on a new blog post earlier this week.

The story behind the event

If you are not located in Chicago, but you are a fan of the game, I'd recommend looking at your local "Pokémon GO" groups to see if they have anything planned. This event is not just a simple celebration of the game and there is a story behind it.

John Hanke, CEO and founder of Niantic, previously said that the whole company was excited about using the game to encourage all the gamers to explore historical landmarks. That means, they will use "Pokémon GO" to promote historical places in the vicinity of the event.

"We love the idea of using mobile games as a motivation for families to play outside together and perhaps to learn something interesting while they are at it," Nintendo Life posted to Facebook.