Walls, roofs and floors
One piece does all three. Saw board panels at the Sawmill table, hold one, and let the angle of your fist decide: level makes a wall, pointed up a roof over your hand, pointed down a floor under it. A green preview fits, a red one does not.
Glass panels work the same way: a window wall, a skylight or a glass floor, and panes side by side read as one sheet. Big panels need the sawmill's power feed. Doors and windows go in the openings.
TipShake a preview to cancel it. The piece stays in your hand.
Lining pieces up
Walls, roofs, doors and windows go wherever your hand holds them. Press B (Y on the left hand) while the preview shows and they snap to a grid instead, so pieces meet edge to edge and line up in height. The preview takes a faint teal tint, with a click and a buzz. Press B again to go back to free placement.
Hold B a moment longer and the grid moves to the piece in your hand, with a firmer clunk. Pieces after it line up with a house that does not sit on the world's own grid. The grid stays where you set it until the next long press.
TipBenches and machines snap to a grid too. Press B while placing one to set it down freely.
Build with cubes
The face button of that hand steps the cube from small to big. Cubes you place can be mined again.
- Hold earth, stone, clay, sand, wood or glass in one hand.
- Press and hold the trigger to show a ghost cube, and point where you want it.
- Let go to build. A red ghost builds nothing.
What holds what
Walls hold each other up, and a flat panel can hang from the roof or beam above it, so a ceiling or a loft needs nothing underneath. Cut a piece out and what hung from it falls, and a door falls with its frame. Pieces you take down give their material back.
Mending
Hold wood against damaged boards, or glass against a broken pane. A hologram shows what is missing. Let go and the pieces knock back in.
A house keeps you safe
Creatures need a clear line to sense you. Walls and a shut door block it, so a closed house stays quiet inside. A Hollow that sees you through a window will break in, so a window is the weak spot.