Use the hammer to pick up and reposition constructions
The updated Mayday demo lets you move constructions with the hammer instead of tearing them down and rebuilding them. The developer announced this change in the October 19 Steam Next Fest update. It gives you a way to improve an early camp's layout after you understand how you want to use it.
The supported Mayday: The Survival Island how to move buildings sequence is simple: take the hammer, pick up the construction, and put it down at the new location. The announcement establishes that action sequence but does not identify every pickup or confirmation input.
Follow your build's contextual prompts for those inputs. The official Mayday Steam update is the source for the relocation feature, rather than an unrelated island-building game's controls.
Moving and opening the building menu are different actions
The same update adds a house-building and decoration menu opened by right-clicking with the hammer. That menu includes walls, doors, floors, tables, chairs, rugs, vases, and other options.
Do not turn that menu shortcut into an unsupported claim that right-click is necessarily the complete pickup-and-placement control sequence. The developer describes the menu input explicitly, while the relocation explanation says to use the hammer to pick up and put down a construction.
Use the hammer's displayed action prompts when targeting an existing structure. If you are choosing a new wall or furnishing from the menu, you are performing a different task from relocating an existing construction.
Reorganize your camp around newer building features
Relocation is useful after your first rough arrangement of cooking, crafting, and storage starts to feel inconvenient. You can reconsider where those constructions belong without following an older recording's demolition-and-rebuild routine.
The October 19 update also changes how storage fits into that layout. Materials in chests are used automatically for crafting, and a small chest can be upgraded in place once the workbench is upgraded. These are separate improvements: automatic material use is not a claim that moving a chest upgrades it.
Building and decoration also contribute to the Comfort system, which provides benefits including more health and slower energy consumption as Comfort increases. This gives you a reason to develop the home beyond its original collection of workstations.
Older advice can conflict with this update. A historical developer discussion says moving structures had not yet been implemented; the later October 19 announcement explicitly introduces it. Use the newer feature description for the updated demo instead of treating that earlier limitation as permanent.
FAQ
Do I have to demolish a building to move it?
The October 19 update introduces picking up and repositioning constructions with the hammer, replacing the earlier need to tear down and rebuild for relocation.
What does right-clicking the hammer do?
The developer says it opens the house-building and decoration menu. The announcement does not give a complete relocation button sequence.
Does moving a small chest turn it into a big chest?
No such connection is stated. The developer separately describes upgrading chests in place after the workbench is upgraded.
Why does an older guide say buildings cannot move?
That can describe an earlier demo. The later October 19 update explicitly adds hammer-based relocation.