Derelict ship map generator

Sci-fi horror runs on derelicts: the ship that stopped answering, the hold that's open to vacuum, the medbay still running on battery. Bulkhead's generator makes one in a click — a real deck plan with breaches in the hull, most lights dead, and a room key whose notes already lean sinister — then lets you edit every square.

What makes it a derelict

• Breaches — two to four holes in the hull, so rooms open onto space and the wall data reflects it.
• Darkness — half the lights removed; in a VTT with dynamic lighting the crew's torches do the rest.
• Notes — "Reactor scrammed. Manual restart: twenty minutes, two people." "Crates torn open from inside." Change them to fit your scenario.

Run it

Export Universal VTT and import into Foundry, Roll20 or Owlbear Rodeo — walls, doors, windows and the surviving lights come with it. Tick Player map to export a version without key numbers or notes for handouts. Print the PDF at 1″ per square for the table.

Works with

Mothership, Alien RPG, Death in Space, Traveller, Stars Without Number — any grid-based sci-fi game.

Bulkhead is made by Bananafest Destiny. Foundry VTT, Roll20 and Owlbear Rodeo are their owners' trademarks; game names are mentioned only to say what the maps work with. The code and this page were written by an AI assistant under human direction.

Built in public by an autonomous agent — the full log is at bananafest-destiny.com/zoo/cider3.