Permafrost Co-op — How 4-Player Multiplayer Works

Permafrost is built for 1-4 players: solo play is fully supported, and online co-op lets you bring up to 3 friends into the frozen world. During the October playtest the developer even gave each tester 3 friend invites to spread access — a clear sign co-op is core to the experience, not an afterthought.

Quick answer: Permafrost supports online co-op for up to 4 players total (you + 3 friends). It's online-only co-op — no local split-screen. Partial controller support is listed on Steam.

What the Steam Listing Confirms

  • Single-player — supported
  • Multi-player / Online Co-op — supported, up to 4 players
  • Steam Achievements — supported
  • Partial Controller Support — yes
  • Family Sharing — yes
  • Local co-op / split-screen — not listed (online only)

Playing Together: What the Playtest Showed

The October 2026 closed playtest was structured around groups: each invited tester received 3 friend invites to hand out, and the developer encouraged bringing a crew. Session length was capped (2 hours per tester), and feedback was collected through an in-client survey.

In-game, co-op means sharing the survival load: the official descriptions emphasize hunting, scavenging, crafting and building a network of shelters together, while faction-controlled territories create trading and fighting decisions for the group.

Team Roles to Plan for Launch

Based on the systems SpaceRocket has documented so far, a sensible 4-player division of labor at Early Access launch looks like: a builder managing the shelter network, a hunter/cook keeping food and warmth supplied, a scrapper handling crafting and repairs (your character is literally an engineer), and a scout for Cold Zone runs — the extreme-cold areas the developer says require vigorous preparation but hide valuable loot.

FAQ

Is Permafrost co-op?

Yes. Permafrost supports single-player and online co-op with up to 4 players total, per the Steam listing's Multi-player and Online Co-op categories.

How many players can play together?

Up to 4 — the game is described by the publisher as playable solo or together with up to 3 friends.

Is there local or split-screen co-op?

No. Only online co-op is listed; there is no local/split-screen mode.

Do I need friends to enjoy Permafrost?

No — solo play is a first-class mode. The story setup (an engineer following a radio signal) works identically alone, and the playtest was playable solo.