Octoexpansion Stories

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...

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...

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...

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...

♡♔❝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...

You woke up in a new time line, things are no longer the same. You have been found by a group of agents, you have no way to communicate with them, they are not human. Yo...

(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...

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...

"why was I so mean to you... now.. now you're gone... you're not here... not fully... I'm so.. so sorry.. goggles..." ~ Rider Story was inspired by the: Saniti...

Male Agent 8 x Female Agent 3 After the Tartar's disastrous attempt to destroy Inkopolis Square and the remaining species on earth, Agent 8 finally arrives on the sur...

Heyo! This is my first Splatoon fanfic here, so I hope it's not too cringy. A bit of swearing (maybe), but overall, pretty friendly (I hope). I'd say 10+ for ages. And n...

Iris (agent 8) and Remi (Agent 3) have finally made it to the surface after the deepsea metro. Iris, with nowhere to stay, moves in with Remi. All is well at first, unti...

Octavia Delmar has found herself in a strange situation. The Octoling has found herself underground without explaining how she got there, only accompanied by the elderl...

(Agent 3 x Agent 8) Agent 3 wakes up on a platform. What does she see? A handsome face. Though, she won't admit it.

*Cover Art is Not Mine* (Y/N) is new to Inkopolis, has no money, no home, or no job. Him and his old friends had a band together and it was going well until something ha...

!OCTO EXPANSION SPOLIERS! (Male Agent 3 x Male Agent 8-Yaoi⚣) Octolings have arrived and have been welcomed into Inkopolis, almost all of them owning a place of their ow...

You're Agent 3 and You are taking care of Agent 8(gender neutral 8 and reader for fun!) Enjoy your adventures with them as you go on silly and weird short story adventur...

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...

It's been about two years since Kirby returned to Planet Popstar. Every day since he returned, he couldn't help but miss his friends in Inkopolis. But one day, the pipe...

5 years has passed since the Great Chroma War and the fall of the Overlords. Kai decides to move to the Splatlands to start his "normal" life. Until he has bee...