Octoexpansion Stories

(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...

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...

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...

Y/n L/n a young impressionable teenager bites the dust earlier than intended, so God being the g.o.a.t that he is gives Y/n a second chance. Y/n gets reincarnated into t...

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...

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...

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...

"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...

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...

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...

♡♔❝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...

(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...

Surume had always been a shadow to her predecessors, no matter what, she wasn't enough. She had always been sad, but accepting of it. Until, one day, she finds herseslf...

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...

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...

After the defeat of Commander Tartar, Agents 3, 8, Cap'n Cuttlefish, Pearl, and Marina can finally rest easy after saving the world...Or so they thought. As reports of a...

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...

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...

After a long day of defeating Commander Tartar, Pearl and Marina are back to their regular ways, powering the Inkopolis Square news, hosting splatfests... chilling and r...