Driving in Junkland Blues

Players do a lot of driving and fighting-while-driving in Junkland Blues, so I'm trying to make it satisfying. Here's an attempt, mostly ripping off this excellent post at Rotten Pulp. I tried to make the rules more comprehensive without losing the flexibility.

Quick note on speed: vehicles move 150 ft each round (or 5x human) per 10 mph of speed.

RIDES

CONTROL

When driving, players may need to retain control of the ride. Roll d20 + INT. GEARHEADS add VEHICLE mod instead if it is higher (increases as a Fighter's attack bonus). Success on a roll equal to or higher than 10 + speed/10. Drivers make control rolls when trying to:

• avoid an obstacle
• go off-road
• reach max speed
• slam on the brakes
• perform any other difficult maneuver, DM’s discretion
  
  

Fail by	Result
5 or less	You need to stop what you were trying to do to retain control.
6-10	Roll d6 on DAMAGE table.
more than 10	Roll d12 on DAMAGE table.

FIGHTING

To ram something, roll d20 + INT. GEARHEADS add VEHICLE mod instead if it is higher. Must be equal to or higher than a creature’s AC without armor (so 12 + DEX) or 10 for stationary objects. For other moving rides, defending driver rolls d20 + DEX + ARMOR and avoids the hit if higher than the RAM roll. Damage is 1d6 per 10 mph or kills any pedestrian outright at speeds over 50 mph.

When attacking a moving ride with a ranged weapon, ATTACK must match or beat AC = 12 + ARMOR + driver DEX. When attacking with a melee weapon, attacker must be on the ride and attacking a vital part of the ride, like the engine or fuel tank. To hang onto a moving ride outside the cabin(s), you must make an Instinct Save each time you make an attack, are hit by an attack, or the driver makes a CONTROL roll.

DAMAGE

Treat HP as normal for animals. For motor and air rides, roll on this table. Roll d6 after the ride is reduced to half HP, d12 at one quarter HP, and d20 at 0 HP. If you’ve already rolled an effect for a certain ride, use the next one down the list. No matter the result on the table, at 0 HP the ride cannot be driven for at least the rest of the combat.

d20	Effect	Repairs	Scrap Needed
1	Just the paint.	-	-
2	Lose rear-view mirror.	-	-
3	Door jams.	-	-
4	Windshield shatters. All in the cabin make INSTINCT save or take d4 damage.	-	-
5	Extra gas or oil burns up.	-	-
6	Tire shot out. -2 to CONTROL.	Minor	10
7-8	Leak d8 gal/qt gas or oil.	Minor	10
9-10	Top speed cut by ¼.	Minor	10
11-12	Brakes fail. Can’t stop.	Medium	30
13-14	Random mod destroyed.	Medium	30
15-16	Driveshaft breaks. No steering.	Medium	30
17-18	Engine takes serious damage. Ride stalls.	Major	50
19	Random rider thrown from the ride.	-	-
20	Fiery crash.	Major	100

FIX RIDE

This is a skill like any other, with a base chance of 1 in 6. A toolkit is required to attempt minor or medium repairs, and a blowtorch is required to attempt major repairs. A failed attempt still uses up the scrap indicated in the DAMAGE roll.

GEARHEADS improve with level (as the Dwarf architecture skill), and may also use this skill to add mods to the ride. Blowtorch is required, along with scrap worth half the price on the mod table.

Ride	Price	HP	Armor	Top Speed	Riders	MPG	Tank (gal)	Oil (qt)	Cargo (slots)
ANIMAL
Ostrich	25	d6	0	30	1	-	-	-	15
Grasshopper	50	2d6	0	50	1	-	-	-	25
Beetle	75	3d6	2	20	2	-	-	-	50
Lizard	100	3d6	2	20	3	-	-	-	75
Tortoise	150	5d6	4	5	4	-	-	-	100
MOTOR
Motorbike	100	d8	0	100	2	50	3	3	25
Buggy	200	2d8	0	100	3	30	10	4	50
Car	300	3d8	2	150	5	20	20	6	100
Van	500	5d8	2	90	10	15	30	7	200
Rig	1,000	6d8	4	90	6	5	300	40	400
AIR
Glider	200	d6	0	40	1	-	-	-	0
Chopper	400	2d8	2	250	4	5	60	50	50
Airship	10,000	6d8	6	200	10	10	300	80	400

Mods	Price	Notes
Armor plates	100	+2 AC per mod, max +6
Boarding pole	50	can jump onto rides 15 ft away
Bulldozer	100	plumes of dust when down, +2 CONTROL vs. obstacles
Extra cabin	200	up to 4 seats, weapon mount
Extra seat	25	-
Flamethrower	300	d6d6 damage, 15 ft range
Gas trailer	300	doubles gas capacity, but fire causes d6d6 explosion
Harpoon gun	75	hooks strong cable into object, 90 ft range
Machine gun	600	3d6, 1800 ft range, -3 ACCURACY, jam 1-3, automatic
Mon. truck wheels	150	+2 to CONTROL
Roll cage	200	riders in cabin can’t be thrown from ride
Spikes	50	+d6 damage to ram