Is Mighty No. 9 co-op?

Yes, Mighty No. 9 supports co-op.

Does Mighty No. 9 have PvP?

Yes, Mighty No. 9 has player-versus-player modes.

Do we both need to own Mighty No. 9 to play together?

Yes. Mighty No. 9 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 Mighty No. 9?

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 Mighty No. 9 multiplayer or co-op?

Yes — co-op and PvP. Mighty No. 9 is a co-op platformer game released in 2016, 50% positive on Steam (3,340 reviews). $19.99 on Steam.

Co-opPvPSingle-player tooParty & co-op · Co-op platformer

Mighty No. 9 is a 2D Side-scrolling Action game that takes the best elements from 8 and 16-bit classics that you know and love and transforms them with modern…

How Mighty No. 9 plays with friends, according to Steam

Online co-op: Yes
Local / split-screen co-op: Not listed on Steam
Online PvP: Yes
LAN play: Not listed on Steam
Single-player mode: Yes
Controller: Full 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: Platformer, Action, Anime, Kickstarter, Side Scroller, 2.5D, Retro, Robots

Do you and a friend both own Mighty No. 9?

Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Mighty No. 9 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 Mighty No. 9 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 Mighty No. 9? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.

Quick answers

Is Mighty No. 9 co-op?: Yes, Mighty No. 9 supports co-op.
Does Mighty No. 9 have PvP?: Yes, Mighty No. 9 has player-versus-player modes.
Do we both need to own Mighty No. 9 to play together?: Yes. Mighty No. 9 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 Mighty No. 9?: 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 2026-09-23. 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