Is 时空之海（Space Time Ocean） co-op?

Yes, 时空之海（Space Time Ocean） supports co-op.

Does 时空之海（Space Time Ocean） have PvP?

Yes, 时空之海（Space Time Ocean） has player-versus-player modes.

Do we both need to own 时空之海（Space Time Ocean） to play together?

Yes. 时空之海（Space Time Ocean） 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 时空之海（Space Time Ocean）?

Player counts were not available when this page was built.

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

Multiplayer games › Sandbox & building › Building & crafting

Is 时空之海（Space Time Ocean） multiplayer or co-op?

Yes — co-op and PvP. 时空之海（Space Time Ocean） is a building & crafting game released in 2023, 0% positive on Steam (1 reviews). $1.99 on Steam.

Co-opPvPSingle-player tooSandbox & building · Building & crafting

Time and space foam island, unknown biological resources, construction base, adventure trip. 1. Build roads.…

How 时空之海（Space Time Ocean） 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
MMO: Yes
Single-player mode: Yes

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: Adventure, Multiplayer, Space Sim, Sandbox, Exploration, Third Person, PvP, Base-Building

Do you and a friend both own 时空之海（Space Time Ocean）?

Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether 时空之海（Space Time Ocean） 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 时空之海（Space Time Ocean） you can play together

House Flipper 2

Building & crafting · 85% positive on Steam (13,691 reviews) · 2,543 playing right now

Trove

Building & crafting · 80% positive on Steam (92,370 reviews) · 758 playing right now

Eco

Building & crafting · 81% positive on Steam (13,212 reviews) · 692 playing right now

OpenTTD

Building & crafting · 96% positive on Steam (14,394 reviews) · 445 playing right now

Mortal Online 2

Building & crafting · 61% positive on Steam (12,943 reviews) · 440 playing right now

Goat Simulator

Building & crafting · 91% positive on Steam (68,580 reviews) · 71 playing right now

Tired of 时空之海（Space Time Ocean）? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.

Quick answers

Is 时空之海（Space Time Ocean） co-op?: Yes, 时空之海（Space Time Ocean） supports co-op.
Does 时空之海（Space Time Ocean） have PvP?: Yes, 时空之海（Space Time Ocean） has player-versus-player modes.
Do we both need to own 时空之海（Space Time Ocean） to play together?: Yes. 时空之海（Space Time Ocean） 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 时空之海（Space Time Ocean）?: 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