Collaborative Build — Documentation
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Collaborative Build

Collaborative Build is live in the game today: host your world as a collab session and your friends build, script and edit right alongside you — every change streaming to everyone over Steam peer-to-peer.

Overview

Where regular multiplayer is about playing a world together, Collab Build is about making it together. Host a session with collab enabled and your guests get the full toolset — mining, building, components, scripts — inside your world, with everything saved to the host's copy.

What It Is

  • One shared world — the host's save is authoritative.
  • Guests download the whole world on join (terrain, components, scripts, materials) with a progress screen — no manual file sharing.
  • Everyone's edits broadcast live over Steam P2P.
  • Proximity voice chat runs over the same session.

Starting a Collab Session

  1. Open the world you want to build in.
  2. Host multiplayer and enable collab build for the session (public or private).
  3. Friends join via Steam invite or the public sessions list — the world streams to them automatically.

How It Works

Collab rides the engine's serverless multiplayer: the host machine holds the canonical world, guests' edits stream to the host and rebroadcast to every peer. World state transfers in chunks on join, and avatars (skins, wigz, capes, wearz) sync with versioned caching so repeat sessions start fast.

What Guests Can Edit

In a collab session, guests get the mode cycle like the host: Mine and Build for terrain, Component Mode for placing and configuring components, and Script Mode for Code Blocks. Changes persist in the host's world after guests leave.

Guest Mode vs Collab

The permission model is the session type:

  • Collab build session — guests can edit.
  • Regular session — guests are locked to Relaxed mode: they can explore, interact and voice-chat, but not modify your world.
  • Public discovery worlds — always relaxed-locked for everyone.

Voice & Presence

Proximity voice chat is built in — WebRTC signaled over the same Steam P2P connection, with per-player volume in Options and mic indicator pills above heads (visible in 3rd-person and 2D camera views). Nametags identify who's who, preferring Tokyube @usernames.

Use Cases

  • Co-built worlds — a builder terraforms while a scripter wires up Code Blocks in the same session.
  • Live workshops — teach building or scripting with everyone inside the same world.
  • Build parties — point a crew at a plot and see what happens.

What's Next

Planned refinements: shared-workspace code editing with conflict merging, per-guest permission tiers, and region locking for simultaneous large-scale AB edits.