Horizon CoLab brings multiplayer building to EventLab. Use it for a shared custom project; Customizable Garages and the Estate are described by the official sandbox guide as solo-building spaces.
Agree on the result before placing props
A shared build works better when everyone knows whether they are making a race, a playground or a scenic area. The following coordination plan is our editorial suggestion, rather than a claim about automatic permission or conflict controls in the game.
Suggested division of work
Give each collaborator a concrete area of responsibility and an agreed boundary.
- Choose one person to coordinate the route and starting area.
- Assign separate sections for obstacles, scenery and route markers.
- Agree on the vehicle class and space needed for passing.
- Stop building periodically and drive the joined sections together.
- Test a complete start-to-finish run before publishing the creation.
When contributions clash
Resolve the route first. A visually impressive section is less useful if it blocks the intended path. Keep a note of the disputed change, decide which player task it should support, and revise the smallest area necessary.
Sources & further reading
Sources checked October 3, 2026. Location reports are credited to their authors; this guide does not claim firsthand playtesting. Header artwork is a decorative illustration.
Playground Games — Garages, Estate, EventLab and CoLabFrequently asked questions
Does CoLab make every personal space collaboratively editable?
No. The linked official announcement distinguishes multiplayer EventLab building from solo Garage and Estate building.