Octoexpansion Stories

This is the first story to actually stick, so bear with me. An Octarian, from sector bay, type 0u is a generic enemy that needs to fight for their life every time a test...

You are just an average inkling in Inkopolis Square, when you notice a strange person who changes your life. This story begins in Splatoon 2, but I will mark in the chap...

Octarians, machines, dangers of the depths, and more. It's all here when you embark on an adventure in Inkopolis and beyond. Please note that no pictures or characters...

Tadayoshi never liked having attention, and always wanted to be alone, but when he was chosen to become agent 4. His life not only changes, and his unknown past life beg...

(Y/N), test subject 054 finds himself trapped in a nightmarish experiment on an island near Inkopolis. The experiment's objective was to create an Inkling resistant to i...

After her victory in the Final Splatfest, Marie grew distant from her cousin, Callie. With both needing to head different ways for their careers, the once inseparable Sq...

In the bad ending of the Octo Expansion, Inkopolis and everyone in it is destroyed, with Cap'n Cuttlefish, Agent 8, Agent 3, and Off the Hook left to pick up the pieces...

The story is based on what happens in the game and fanfic. So in short is how everyone meets and how the everyday lives pass by and how love develops between them. So p...

♡♔❝Welcome to book 2 of your daily dose of boy x boy Agent 24, because my other book ran out of space due to Wattpad's annoying chapter limit.❞♔ ✮All pictures belong to...

A disaster that could've been prevented but wasn't, caused Y/N to lose everything. In a desperate attempt, Y/N's family placed them into a cryo pod, ultimately freezing...

Inkopolis has just been saved once again by the Squid Beak Splatoon. Agent 3 feels suspicious about the new agent, agent 8, an Octoling. Being on many missions herself...

It has been 3 years since the final battle. Yet a new threat has been found.... 4 has gone missing, 7 is hiding a secret, 3 has become more paranoid than ever, and 8 ha...

Agent 8's nightmares are getting worse every night. What will happen when her nightmares become reality? After a disastrous splatfest, Agent 8 is captured yet again. Man...

Enter the book of random assumptions about the world of splatoon! Reader's can also comment their headcannons for an exclusive part! Stay creative y'all! Ranked #22 in S...

As the Octarians begin to show suspicious activity not of Earth, the NSS is forced to split up; some agents stay behind to protect Inkopolis, while others travel deep in...

This story first takes place a month after the events of Octo expansion . Agent 3 and agent 8 have to get used to living together and also going to the same school as we...

While confronting a target, Agent 3 is ambushed by a mysterious group of assailants. She wakes up in a train station deep underground and decides to investigate the shad...

This is the Plot Octo Expansion,But in Agent 3's perspective. So that's all I got to say bout this, Have fun reading!

Stinger is an Inkling who, mysteriously, has no memory, and a voice in his head. One day, he saves an Octoling, and his world changes. This is his story. A few warnings:...

Eight once again woke up in a strange place with no memory of his previous actions that led up to him being here. He thought it was a dream. He thought he was safe at h...