Together now, or a challenge for later?
| Mode | How friends play | Session |
|---|---|---|
| My World | Build in the same private world | Free building, up to four players |
| Flooded Island | Share the rising tide and rescue objectives | Co-op escape, up to four players |
| Build & Climb | Try to beat a finished time on the same course | One player per attempt; friends play any time |
Create a shared world
Open My World, press Play and choose Play with a friend in the game menu. Create a shared world, then copy the invitation. Your friend opens it in their browser and presses Play.
The shared world is a separate online copy of your solo world. Both players see each other's building changes. Your original solo save stays on your device.
Online rooms are saved for 30 days. The invitation screen shows the expiry date. Keep the complete invitation, including the part after the # symbol; it contains access to the room. Share it privately with people you want to join.
Escape together in Flooded Island
Choose a scenario, then create a shared expedition. Build a route across the gap to the robot and climb toward the escape marker. The objective updates for everyone in the room.
The shared timer continues when someone pauses or disconnects. The owner can restart the expedition for everyone. If you want an adventure that pauses with you, choose solo play instead.
Control who can build
The room owner can stop new guest entries, turn guest building off or replace the invitation and remove guests. Keep the owner's browser storage if you want to manage the room later.
A full or temporarily unavailable server may prevent creating a room. Solo building remains available. If a connection drops during a shared game, wait for the reconnect message to clear before continuing.
Race when you cannot be online together
Finish a verified Build & Climb run, then choose Challenge a friend. The link contains a public result rather than access to a private world. Your friend gets the same track version and rules.
Challenge links last 30 days. A copied link is only an invitation: your friend still chooses whether and when to play.
