Every shape here is the real one — all 2,263 building shapes, their icons and 3D models taken from the game's own files, in the same categories as the in-game shape menu. Block HP is the real material value for the four 3.0 building tiers, scaled by the shape where the game scales it. Structural support uses the game's own stability code, so overhangs that would collapse in game are flagged here. Traps, turrets, doors, lights and power equipment come from the game's own block data, with their real sizes, HP, power use and crafting cost, and you can wire them up and check the power budget using the game's own power rules. Zombie attack simulation isn't in the designer yet; it's the next phase. Your design saves automatically in this browser.
Build
Tool
Material
Selected object
Objects
Wiring & power
poweredswitched offno power
🔌 Wire (W): click the item giving power, then the item taking it. Right-click an item to cut the wire into it. Rules come from the game's own power code: a wire reaches 15 blocks, one item can feed at most 9 wires, generators and solar banks can't be fed (battery banks can), and power runs down the wires in the order you made them, so the last items go dark first when it runs short. Items with no power use listed in the game files draw 5. Solar day/night output, generator fuel, battery charging and timer cycles aren't modelled.
Structural support
No blocks yet.
barely holdssolid
■ red = would fall
Uses the game's own stability rules (block mass and glue, grounded = 15). Assumes you build from the ground up. Block damage and side terrain are not modelled.
Current shape
Shapes
Save & share
Layer 1
Left-click use tool · Shift+drag paint Right-click erase · drag orbit Right/middle-drag pan · scroll zoom R rotate · T tilt · [ ] layer 1–4 material · W wire · Esc cancel wire Ctrl+Z / Ctrl+Y undo/redo