The War Wheel

The War Wheel was a nigh-unstoppable Nazi weapon in DC comics. Its original incarnation was defeated when it came into contact with high voltage lines, electrocuting the crew. While subsequent versions corrected this fatal flaw, it's great weight made it vulnerable to sinking in quicksand and marshy ground. War Wheels could be transported to and from battlefields by teams of dirigibles.

On Earth-218, the War Wheel would have been created by H.Y.D.R.A. When my players reach the World War II chapter of my campaign, they may find themselves facing off against this monstrous war machine.

Craft: War Wheel
Class: Military Ground
Size: Colossal (150' diameter x 30' wide)
Init: -8     Crew: 22 (see below)     Passengers: 0

Cargo: 8,000 lbs*

Maneuver: -4 (-8 size, +4 equipment)
Top Speed: 80 (8)

Defense: 2 (-8 size)      Hardness: 20     Hit Points: 240

Weapons:

14 88L71 Cannons (2 front, 5 left, 5 right, 2 rear): 8d12 (20/2, 600')

• Crush (Ex): If the War Wheel deals 4d8+21 damage to all creatures or objects in its part unless they make a Ref save (DC26) to get out of the way.

* The War Wheel has a cargo capacity of 8,000 pounds. It can carry one passenger per every 250 pounds of cargo space sacrificed.

• The War Wheel has a crew of one Commander, one Sergeant, 2 Drivers, 4 Mechanics, and 14 Gunners.

• Gyroscopic Stabilizer: In the event of a failed Drive check, the War Wheel ignores all Roll Over results as long as its gyroscope is operational.

• Immune to any effect that requires a Fort save unless it affects objects, Hardness 20, most materials divide damage from electricity/fire by 2 and cold damage by 4 before Hardness

Sample War Wheel Floorplan

Incorporating the War Wheel into your campaign: 

In a fantasy world the War Wheel could be an ancient doomsday weapon created by the gods or a cabal of powerful wizards who plan on using it to subjugate entire kingdoms or continents. In this case, replace the cannons with ballista or apprentices armed with a variety of wands.