Octoexpansion Stories

What happened if Captain Cuttlefish and Agent 3 had never met the Octoling soon to be known as Subject 10,008? What if 8 had never had Marina and Pearl's guidance during...

You are Unit Number 10,000, an octoling that had been enlightened by Commander Tartar and happily works towards the goals of Kamabo Co. Maintaining the underground facil...

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...

I've always wanted to make a story like this. When the agents find a mysterious item that tells them of dangers to Inkopolis, They have to go down to the Deep Sea Metro...

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...

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...

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...

♡♔❝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...

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...

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...

!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...

(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...

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...

"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...

It's been nine months since escaping the Deepsea Metro, defeating tar-tar, and saving Inkoplois things seemed to have finally calmed down for the team. Agent 8 now free...

Agent 8 is challenged with his new life, after being freed from the Octarian Menace and escaping Deepsea Metro, and everything that comes across his way. Lovers, friends...

Everything was going great after the tournament. Everyone was having a huge party, until word got out about Goggles going missing. His teammates go out to look for him...

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...

*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...