Is Simple Fish Adventure co-op?

Yes, Simple Fish Adventure supports co-op.

Does Simple Fish Adventure have PvP?

Steam does not list PvP for Simple Fish Adventure.

Do we both need to own Simple Fish Adventure to play together?

Yes. Simple Fish Adventure is played online, so each player needs their own copy on their own Steam account (or PC Game Pass where it is offered). Steam Families can share a library, but two people cannot play the same shared game at the same time.

How many people play Simple Fish Adventure?

About 1 players were in-game when this page's data was last refreshed (2026-09-09).

Ready Up — what game do we play?Compare two Steam libraries →

Multiplayer games › Sandbox & building › Physics sandbox

Is Simple Fish Adventure multiplayer or co-op?

Yes — co-op. Simple Fish Adventure is a physics sandbox game released in 2021, 88% positive on Steam (411 reviews), with 1 playing right now. $3.99 on Steam.

Co-opSingle-player tooSandbox & building · Physics sandbox

Simple Fish Adventure is an unusual short physics-based platformer. Jump like a fish, think like a fish, be a…

How Simple Fish Adventure plays with friends, according to Steam

Online co-op: Yes
Local / split-screen co-op: Not listed on Steam
Online PvP: Not listed on Steam
LAN play: Not listed on Steam
Single-player mode: Yes
Controller: Partial controller support

Steam's own category list for the game, as of 2026-09-09. "Not listed" means the store page does not claim that mode; community mods or Remote Play can still add it.

Steam tags: Physics, Simulation, Platformer, Side Scroller, Casual, Difficult, Minimalist, Indie

Do you and a friend both own Simple Fish Adventure?

Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Simple Fish Adventure is one of them — then helps you pick tonight's game with a weighted roll or a bracket.

Or open the Steam store page.

Games like Simple Fish Adventure you can play together

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Human Fall Flat

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Brick Rigs

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Trailmakers

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Tired of Simple Fish Adventure? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.

Quick answers

Is Simple Fish Adventure co-op?: Yes, Simple Fish Adventure supports co-op.
Does Simple Fish Adventure have PvP?: Steam does not list PvP for Simple Fish Adventure.
Do we both need to own Simple Fish Adventure to play together?: Yes. Simple Fish Adventure is played online, so each player needs their own copy on their own Steam account (or PC Game Pass where it is offered). Steam Families can share a library, but two people cannot play the same shared game at the same time.
How many people play Simple Fish Adventure?: About 1 players were in-game when this page's data was last refreshed (2026-09-09).

Ready Up is a free tool: enter two Steam usernames and it lists the multiplayer games you both own, runs a bracket to pick one, and suggests new co-op games that fit how you both play. Ratings, tags and player counts from Steam and SteamSpy; page updated 2026-09-23. Powered by Steam — not affiliated with or endorsed by Valve Corporation or Microsoft. Ready Up is a Somebody Decide program. How the data works · Legal & privacy · All types · Game Pass