Blizzard wanted to release 'Overwatch' on Nintendo Switch from the moment the console was released.
The game's director Jeff Kaplan has explained that it was always on the cards but they wanted to make they did it "right".
He told The Verge: "Literally the day the Switch came out, we were thinking about it. I remember immediately talking to people around the office saying, 'What would it take for us to be here?'
"It took some time for that to happen.
"We started by porting 'Diablo III' to the Switch late last year, and work on a portable version of 'Overwatch' started a little over a year ago.
"The final version will be launching on Nintendo's tablet on October 15th. And, like everything we do, we wanted to do it right."
Meanwhile, Blizzard recently admitted they would love to see the arcade game in 'Super Smash Bros. Ultimate'.
The game developers think it "would be awesome" to see a character from the popular title appear in one of the DLC's they have planned.
Producer Wes Yanagi told GameSpot: "As a player and big fan of ['Smash'], I think that would be awesome.
"It would be an honour if Nintendo chose to bring one of our characters into 'Smash Bros.'"
Before its release on Nintendo Switch in March 2017, 'Ultimate' had the best pre-selling game for the console ever.
In a tweet from Nintendo Versus, they said: "Super #SmashBrosUltimate is punching its way into the record books! Thank you to all the amazing fans for your support in making this a fight for the ages! Be sure to have your #NintendoSwitch ready to experience the action when the game launches on 12/7. (sic)"