Though the Splatoon series is predominantly a multiplayer franchise, the Splatoon games have each offered single-player story modes, involving the Squidbeak Platoon’s confrontations with the Octarians. Though the story itself was much in the forefront, players who choose to look for collectibles like the Sunken Sea Scrolls (which also return in this game) have discovered a surprisingly large amount of lore that gives context to the post-apocalyptic future world in which Splatoon exists. IGN's Splatoon 3 Story Mode Walkthrough will lead you through the Crater and the sites of Alterra. We'll provide tips for every boss fight and list the all collectibles and where to find them!

If you follow (the former Captain) Cuttlefish down the grate, you embark on Splatooon 3’s story mode. The story mode features over 70 stages spread across different islands each with a growing threat of a mysterious fuzzy ooze. Check out our full walkthrough for boss tips, and the locations of all the collectibles in Alterra.

Walkthrough Sections

Prologue

The Crater

• The Crater - Camp Cuttle
• No. 1 Octarians in the Crater? YIKES!
• No. 2 Sink into the Ink and SWIM!
• No. 3 Boxes Locked! Keys, Please!
• No. 4 What Are They? Can We Stop Them?
• DJ Octavio Boss Battle - Octobot King

Alterna

Site 1 - Future Utopia Island

• 1 - Get to Know Alterna, Your Only Choice
• 2 - Octopods at Rest Tend to FLIP OUT!
• 3 - Splat You on the Flip Side
• 4 - Doors, Doors, Doors! And More! (Doors)
• 5 - Relic Restoration
• 6 - Zip, Splat, and Jump
• 7 - Become One with Your Smallfry
• 8 - What Caused the Big Bang? YOU!
• 9 - The String’s the Thing
• 10 - Deadly Dance Hall-Jump, Jump!

Site 2 - Cozy and Safe Factory

• 1 - Twirling, Swirling, Whirling
• 2 - Absorbency and You
• 3 - Soak It to Me!
• 4 - Splitting Crosshairs
• 5 - Tread Heavily
• 6 - Getting Lost in Three Easy Steps
• 7 - The Ink-Conservation Project
• 8 - Switching Things Up
• Site 2 Boss Battle - The Future Stares Back

Site 3 - Cryogenic Hopetown

• 1 - Climbing the Corporate Splatter
• 2 - They Said We'd Have Flying Cars, and We Do! Kinda!
• 3 - Ink Wheels-Experience Tomorrow's Technology Today
• 4 - Try Curling! Alterna's 11th Most Popular Athleisure Activity
• 5 - Conveyor-Belt Tightening
• 6 - Time Trial and Errors
• 7 - Rail Pass

Site 4 - Landfill Dreamland

• 1 - Propelled to Greatness
• 2 - Octohoppers Don't Have a Sense of Humor (and They Hate Puns)!
• 3 - Let's Put a Pin in That
• 4 - Splash the Block Party
• 5 - Amusing a Bemused Muse
• 6 - Those Aren't Birds
• 7 - Charge Now, Splat Later
• 8 - Easy Ride, Tricky Targets
• 9 - Flying Worst Class
• 10 - Ink Fast, Hotshot
• 11 - Stamp 'Em Out
• 12 - The Path to Perfect Penmenship
• Site 4 Boss Battle - The Pursuit of the Precious

Site 5 - Eco-Forest Treehills

• 1 - Trouble Round Every Corner
• 2 - The Upside to Enemy Backsides
• 3 - Uh-Oh! Too Many Snipers!
• 4 - Barriers! They've Got You Covered
• 5 - A Compulsive Collector's Paradise
• 6 - Zipping Over the Neighborhood
• 7 - One-Way Ride Through Target Town
• 8 - Making Waves with Splashdowns
• 9 - Low Viz, High Risk
• 10 - Shooter on Rails
• 11 - Simply Ziptastic!
• 12 - You'll Go Far If You Shoot Far
• 13 - Learn to Reflect, and This One Is in the Bank

Site 6 - Happiness Research Lab

• 1 - Bet You Mist Us!
• 2 - Octarian Heights
• 3 - Torture Tour
• 4 - Conserve Ink-Splat Sustainably
• 5 - The Enemy Ink Is Lava!
• 6 - Keep It Rolling
• 7 - That Sinking Feeling
• 8 - Breathe In, Breathe Out
• 9 - Dive and Dash
• 10 - Mission: Fly Fishin'
• 11 - Don't Tease the Keys
• 12 - Enter the Stamp Gaunlet
• Site 6 Boss Battle - The Obscurest Chiaroscurist

Final Area - Alterna Space Center

• Alterna Space Center
• The Ursine Anomaly