Crimson Moon
Two-player online co-op

Crimson Moon Co-op & Multiplayer Guide

Crimson Moon supports optional two-player online co-op. It does not support couch co-op, and the published feature set is PvE rather than PvP.12

Updated September 3, 2026

Two players explore a corrupted Gildenarch ward in Crimson Moon co-op
Maximum2 players1
TypeOnline co-op1
LivesShared pool1
SoloFully supported2

How Co-op Changes a Run

  • A shared life pool lets surviving players revive a fallen partner.1
  • Synergies enable coordinated attacks between partners.1
  • Dynamic scaling adjusts the mission when a second player joins.1
  • Every mission is designed to remain playable solo.2

Matchmaking Options

The official support flow starts from the portal in Sanctus Clypeus. You can host a public or private game, invite platform friends, use Quick Match or share a join code.1

What It Does Not Support

The documented maximum is two players. There is no official couch co-op or PvP mode, and no official guide for AI companions. Crossplay is covered separately because its evidence comes from a developer Steam reply rather than the support article.13

Frequently Asked Questions

How many players can play Crimson Moon?

Two players maximum in online co-op.1

Can I play Crimson Moon solo?

Yes. Solo play is part of the full game design.2

Does Crimson Moon have local co-op?

No local or couch co-op is documented.12

Sources

  1. Official co-op support guide
  2. Steam feature list
  3. Developer crossplay response