A modular map of a modern basement.

8 Tiles, 6×6 inches each.
Gridless and 1 inch grid overlay versions.
Modern setting.
Story seeds.
System Agnostic.
VTT version included.

Is this the lair of an urban cultist?
A secret place where that respected neighbor hides, that your players were not meant to see?
The final scenario of a serial killer vs. those nosy special agents?
Or maybe that clownish supervillain escaped again through that hole?
Could it be possible that a ghost plumber is trying to fix the heater?
Whatever happens, it will happen here, in the Basement of Doom, a Modular 6’’ by 12’’ battlemap.