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Is Sonder multiplayer or co-op?

Yes — co-op, plus local/split-screen. Sonder is a co-op platformer game released in 2024, 90% positive on Steam (519 reviews), with 3 playing right now. Free on Steam.

Co-opLocal / split-screenParty & co-op · Co-op platformer

Experience an innovative co-op adventure where two players have to work together. Engage in collaborative…

How Sonder plays with friends, according to Steam

Online co-op
Yes
Local / split-screen co-op
Yes
Online PvP
Not listed on Steam
LAN play
Not listed on Steam
Remote Play Together (one copy, streamed to friends)
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: Casual, Adventure, Platformer, Puzzle, Puzzle-Platformer, Exploration, Side Scroller, 2.5D

Do you and a friend both own Sonder?

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

Do you and a friend both own Sonder?Free, no login — uses public Steam profiles.

Or open the Steam store page.

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

Quick answers

Is Sonder co-op?
Yes, Sonder supports co-op.
Does Sonder have PvP?
Steam does not list PvP for Sonder.
Do we both need to own Sonder to play together?
Not always. Sonder supports Steam Remote Play Together: one person who owns it hosts and streams a local session to friends who don't (Steam quotes up to four players, more on a fast connection). For online co-op or PvP, every player needs their own copy.
How many people play Sonder?
About 3 players were in-game when this page's data was last refreshed (2026-09-09).
Does Sonder have split-screen or local multiplayer?
Yes. Steam lists Sonder with shared/split-screen co-op on one PC — and it supports Remote Play Together, so a friend can join that local session over the internet.

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