Not natively. RimWorld ships single-player; the community mod RimWorld Multiplayer adds co-op — Run a colony together in real time; compatible with most popular mods when everyone has the same list.

Does RimWorld have PvP?

Only with the RimWorld Multiplayer mod, which is co-op only.

Do we both need to own RimWorld to play together?

Yes. RimWorld 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 RimWorld?

About 19,211 players were in-game when this page's data was last refreshed (2026-09-09).

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

Multiplayer games › Strategy › Builder & management

Is RimWorld multiplayer? Yes — with RimWorld Multiplayer

Not out of the box — but the RimWorld Multiplayer mod makes it co-op. RimWorld is a builder & management game released in 2018, 98% positive on Steam (210,517 reviews), with 19,211 playing right now. $34.99 on Steam.

Co-opSingle-player tooMultiplayer via mod: RimWorld MultiplayerStrategy · Builder & management

How to play RimWorld with a friend: RimWorld Multiplayer

Run a colony together in real time; compatible with most popular mods when everyone has the same list. Steam lists RimWorld as single-player, so it won't show up in Steam's own "games we both own" view as something you can play together — Ready Up counts it anyway, marked "Via mod", and you can hide mod-only games with one filter if that's not your thing.

Players: 2–8
Modes: co-op
Status: Maintained — works with the current game version and gets updates
You need: Steam Workshop; the host owns the save
Price: Free

Get RimWorld Multiplayer All 77 games with multiplayer mods →

A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes,…

How RimWorld 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
LAN play: Not listed on Steam
Single-player mode: Yes
Controller: Partial controller support
Mods: Steam Workshop

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: Colony Sim, Base-Building, Survival, Strategy, Sandbox, Management, Building, Simulation

Do you and a friend both own RimWorld?

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

Or open the Steam store page.

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

Quick answers

Is RimWorld co-op?: Not natively. RimWorld ships single-player; the community mod RimWorld Multiplayer adds co-op — Run a colony together in real time; compatible with most popular mods when everyone has the same list.
Does RimWorld have PvP?: Only with the RimWorld Multiplayer mod, which is co-op only.
Do we both need to own RimWorld to play together?: Yes. RimWorld 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 RimWorld?: About 19,211 players were in-game when this page's data was last refreshed (2026-09-09).

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