Hi there!
Irda Ranger said:
Another thing that I think the DR system would address better than the AC system is the question of size categories.
I just can't wrap my brain around the concept of anything a human can do with his hands, or even a sword, being more than a paper cut to a dragon. It should hardly even count as damage. Ditto for the human commoner (4 HP) being killed by a couple housecats (1 damage).
I think a system where size categories grants DR & DR-piercing bonuses would make more sense here. With that involved, no more being killed by housecats or pixies (just scratches that sting), and no more killing dragons with swords that can't even punture its hide, let alone hitting any major arteries or internal organs.
This would make Dragons much less Disposable
B.othered A.bout D.isposable D.ragons
If we use logic as a base then a gargantuan dragon (akin to the male from Reign of Fire) should not be injured by standard arrows or swords. In fact I estimate its armour would even be resistant to 25mm cannon, it would probably take a number of 50mm shots or a point blank 100mm tank shell to drop.
Lets assume for a moment that hit points are the square root of the mass (in lbs).
eg.
30lb small halfling = 5hp
200lb medium size human = 14hp
1600lb large giant = 40hp
12,800lb huge titan (or large iron golem) = 113hp
204,800lb gargantuan dragon = 452hp
We know an M16 can kill a human on a critical hit; likewise we know a kevlar vest will probably stop a 5.56mm round.
So its reasonable to assume a 5.56mm round will deal about 2d8 damage and a kevlar vest will stop about 14 points.
If we scale all those up:
Missile Weapons.
5.56mm = 2d8
12.7mm sniper rifle = 4d10
25mm cannon = 11d10
50mm cannon = 32d10
100mm tank shell = 90d10
200mm destroyer shell = 256d10
400mm battleship shell = 724d10
Heavy Armour.
Medium Body Armour = DR 14/-
Large Body Armour = DR 40/-
Huge Body Armour = DR 110/-
Gargantuan Body Armour = DR320/-
Gargantuan Dragon* = DR452/-
*If we assume the dragons scales are as effective as Kevlar. Though a dragons scaly hide is probably (pound for pound) akin to medium armour. So Gargantuan Dragon = DR226/-
Medium Armour could be considered half as effective.
Light Armour could be considered one quarter as effective.
This revision necessitates you apply proper damage and strength modifiers to creatures.
If a medium size claw attack deals 1d6 then a gargantuan dragons claw will deal about 32d6.
Likewise if the typical human strength is 9-10 then the typical (gargantuan) dragons strength will be about 300 (+145 damage*).
*Only damage, you do not gain a bonus to attack.
Okay so how does a human (in a fantasy setting) hurt a gargantuan dragon with 452hp and Damage Reduction 226/-...
- A giant ballista (as in a certain Ray Harryhausen movie: the Seventh Voyage of Sinbad). If a medium X-bow (3ft.) deals 1d10 and reduces DR to one quarter (DR 56/-). Then a 24ft. version would deal about 22d10 a 48ft. version about 63d10 (like the one they use in the movie).
- An explosion (as in both Dragonslayer and Reign of Fire): the dragon in dragonslayer was probably on huge in terms of size, though she took the explosion on the outside and the gargantuan dragon (in Reign of Fire) swallowed his.
Huge Dragon (from Dragonslayer) 160hp, DR 80/-
Gargantuan Dragon (from Reign of Fire) 452hp, DR 226/-
Exterior explosion 2 Kg of TNT = 25d10 with no Reflex save for half since it was carrying the exploding wizard; enough to cause the dragon serious damage, though it probably didn't die until it hit the ground.
Interior explosion 250g of TNT = 8d10 (though dragon took 70d10 with no Damage Reduction and no Reflex save for half due to the grenade exploding inside it.