The single-player experience will challenge players to climb the Spire of Order.
Players will need a Nintendo Switch Online subscription to access the new content.
The family-friendly shooter features a single-player story mode and a variety of multiplayer modes.
A 12-hour Splatfest event will take place on August 27.
A ‘Splatoon 3’-themed Pro Controller and Carrying Case are also coming soon.
The kid-friendly shooter will feature multiple gameplay modes.
Check out some of the news from Nintendo’s latest Direct.