Is Cozy Blocks: Undersea Adventure multiplayer or co-op?
Yes — PvP, plus local/split-screen. Cozy Blocks: Undersea Adventure is an action-adventure game released in 2021, 100% positive on Steam (7 reviews). $6.99 on Steam.
PvPLocal / split-screenSingle-player tooAction-adventure · Action-adventure
A relaxing 3D puzzle game with a block placing mechanic to play solo or with friends in Multiplayer mode! Use…
How Cozy Blocks: Undersea Adventure plays with friends, according to Steam
- Online co-op
- Not listed on Steam
- Local / split-screen co-op
- Not listed on Steam
- Online PvP
- Not listed on Steam
- Local / split-screen PvP
- Yes
- LAN play
- Not listed on Steam
- Remote Play Together (one copy, streamed to friends)
- Yes
- 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: Cartoon, Singleplayer, Split Screen, Female Protagonist, Cozy, Puzzle, Relaxing, Logic
Do you and a friend both own Cozy Blocks: Undersea Adventure?
Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Cozy Blocks: Undersea Adventure is one of them — then helps you pick tonight's game with a weighted roll or a bracket.
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Quick answers
- Is Cozy Blocks: Undersea Adventure co-op?
- Cozy Blocks: Undersea Adventure does not list co-op on Steam; it has PvP, Local / split-screen, Single-player too.
- Does Cozy Blocks: Undersea Adventure have PvP?
- Yes, Cozy Blocks: Undersea Adventure has player-versus-player modes.
- Do we both need to own Cozy Blocks: Undersea Adventure to play together?
- Not always. Cozy Blocks: Undersea Adventure 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 Cozy Blocks: Undersea Adventure?
- Player counts were not available when this page was built.
- Does Cozy Blocks: Undersea Adventure have split-screen or local multiplayer?
- Yes. Steam lists Cozy Blocks: Undersea Adventure with shared/split-screen PvP on one PC — and it supports Remote Play Together, so a friend can join that local session over the internet.