Floor Plan 3 - Underground LabOnce it was a missile silo, ready to spew atomic death. Then the government abandoned it . . . and the Professor moved in. Now the huge underground silo houses level after level of experiments . . . cages for beasts or prisoners . . . and Things Man Was Not Meant To Know. Here in Floor Plan 3: Underground Lab, the secrets of this abandoned site are laid bare, for your own diabolical uses. Or use the included alternate sheets and descriptions to play