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Steam News17 June 202619d ago

Co-Op Update — Consume The World With Your Friends!

Multiplayer Co-op Is here! Team up with up to 3 friends in the full campaign — shared resources, shared evolution, lobby codes, built-in voice chat and difficulty scaling with party size.

Full notes

Full Mycelium Conquest update

Read the full published notes in a cleaner layout. The original post stays linked below.

What changed

0 fixes0 additions3 changes0 removals
  • UI and audio
  • Server
changedTeam up with up to 3 friends in the full campaign — shared resources, shared evolution, lobby codes, built-in voice chat and difficulty scaling with party size.
changedVoice chat built in.
changedNote: Since this is a pure P2P Co-op session, it'll work on home internet connections and same WiFi/LAN (eg. 4 players in the same house, university dorm, office or any local network where both machines can see each other). It does not work using mobile hotspots or public wifi.

Mycelium Conquest changes

changedTeam up with up to 3 friends in the full campaign — shared resources, shared evolution, lobby codes, built-in voice chat and difficulty scaling with party size.
changedVoice chat built in.
changedNote: Since this is a pure P2P Co-op session, it'll work on home internet connections and same WiFi/LAN (eg. 4 players in the same house, university dorm, office or any local network where both machines can see each other). It does not work using mobile hotspots or public wifi.

Multiplayer Co-op Is here!

Team up with up to 3 friends in the full campaign — shared resources, shared evolution, lobby codes, built-in voice chat and difficulty scaling with party size.

Feature list:

  1. Team up with up to 3 friends in the full campaign.

  2. Shared resources — everyone contributes to the same pool. Build, research, and evolve together.

  3. Host a game with a simple lobby code.

  4. Voice chat built in.

  5. Difficulty scales with your party size — more players means tougher enemies

  6. Saved co-op games appear in blue from load save games list.

How to host game:

  1. From the main menu > co-op > host game.

  2. Share the 6 digit password with your friends to join.

Note: Since this is a pure P2P Co-op session, it'll work on home internet connections and same WiFi/LAN (eg. 4 players in the same house, university dorm, office or any local network where both machines can see each other). It does not work using mobile hotspots or public wifi.

Source

Steam News / 17 June 2026

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