Is Sonic 3 & Knuckles co-op?

Sonic 3 & Knuckles does not list co-op on Steam; it has Online multiplayer, Single-player too.

Does Sonic 3 & Knuckles have PvP?

Steam does not list PvP for Sonic 3 & Knuckles.

How many people play Sonic 3 & Knuckles?

Player counts were not available when this page was built.

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

Multiplayer games › Party & co-op › Co-op platformer

Is Sonic 3 & Knuckles multiplayer or co-op?

Yes — online multiplayer. Sonic 3 & Knuckles is a co-op platformer game, 91% positive on Steam (43 reviews). price varies on Steam.

Online multiplayerSingle-player tooParty & co-op · Co-op platformer

Dr. Eggman’s (AKA Dr. Robotnik’s) Death Egg was once again blasted by Sonic, crash-landing on the peak of a…

Steam tags: Classic, Platformer, Great Soundtrack, 2D, Retro, 1990's, Replay Value, Fast-Paced

Do you and a friend both own Sonic 3 & Knuckles?

Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Sonic 3 & Knuckles 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 Sonic 3 & Knuckles you can play together

Hollow Knight

Co-op platformer · 97% positive on Steam (415,946 reviews) · 4,912 playing right now

It Takes Two

Co-op platformer · 95% positive on Steam (218,383 reviews) · 5,018 playing right now

POPUCOM

Co-op platformer · 88% positive on Steam (1,161 reviews) · 4,352 playing right now

Cuphead

Co-op platformer · 96% positive on Steam (186,835 reviews) · 2,080 playing right now

DDNet

Co-op platformer · 89% positive on Steam (37,450 reviews) · 2,679 playing right now

Celeste

Co-op platformer · 97% positive on Steam (120,602 reviews) · 1,174 playing right now

Tired of Sonic 3 & Knuckles? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.

Quick answers

Is Sonic 3 & Knuckles co-op?: Sonic 3 & Knuckles does not list co-op on Steam; it has Online multiplayer, Single-player too.
Does Sonic 3 & Knuckles have PvP?: Steam does not list PvP for Sonic 3 & Knuckles.
How many people play Sonic 3 & Knuckles?: Player counts were not available when this page was built.

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 2026-09-09. Powered by Steam — not affiliated with or endorsed by Valve Corporation or Microsoft. How the data works · Legal & privacy · All types · Game Pass