d20 Ronin Arts Steam & Steel Expanded Prosthetics.pdf

Steam & Steel: Expanded Prosthetics

By Michael Hammes

For use with E.N. Publishing’s Steam & Steel written by Christopher Allen

Cover and interior design and layout by Philip Reed,

using a graphic element originally created by Denise Robinson.

Steam & Steel, E.N. Publishing, and the E.N. Publishing logo are trademarks of

E.N. Publishing used with permission.

“Nice piece of work you got there,” Dain noted as he opened his toolbox. His long-practiced

eye could detect good craftsmanship at a glance, and the prosthetic arm that the dwarven war-

rior was sporting was a good piece of work, better than the usual dwarven military standard.

“Thanks,” the warrior intoned, any further words interrupted by a sudden hiss and pop com-

ing from the steamwork that sent the arm swinging wildly across the cavern floor, its metal parts

grating and sparking on the rock.

“You mind getting that thing under control?” Dain didn’t have time for this; there were plen-

ty of others that needed his help.

The warrior grabbed the artificial wrist with his flesh hand and dropped his torso across the

arm causing the now trapped prosthetic to squeal in protest. “Got it.”

While the young dwarf fought to get the arm under control, Dain looked through his toolbox.

He hadn’t meant to snap at the boy. After all, there was little that the young warrior could do

about the damaged steamworks.

Dain rubbed the bridge of his nose a moment as one of the prosthetic’s pistons gave out a low

moan. He and all the other wrenches had been under so much stress lately. Still, that wasn’t an

excuse; he should be glad that this boy was still alive.

“Didn’t mean to yell at you son,” he offered as he turned back to the young man, wrench in

hand.

“It’s okay, sir,” the young warrior replied still fighting the arm; despite the boy’s concentra-

tion as he struggled to keep the arm from flopping about, Dain could tell that the warrior appre-

ciated the apology.

“Alright then, son, let’s see what we can do here.”

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I NTRODUCTION

Open Game Content

All of the text of this PDF is presented as

open game content. While this means

absolutely nothing to your campaign it does

give other publishers permission to use this

material as long as they follow the open game

license (see the end of this PDF).

About The Author

Michael Hammes has been freelancing in

the role-playing industry since 2001. Starting

small, he has steadily built his repertoire, and

reputation, by working for such companies as

Ronin Arts, Alderac Entertainment Group,

Dark Quest Games, and E.N. Publishing. He

is currently trying to balance his writing

schedule with his role as stay-at-home father.

To catch the latest from Michael’s Imagination

visit www.michaelhammes.com.

The main Steam & Steel book introduces

the concept of prosthetics, steamwork limbs

and organs that can be grafted to a character to

replace those that have been damaged or are

missing (usually due to injury or disease). All

of the information necessary for a PC or NPC

to be outfitted with metal body parts is includ-

ed in that book and this PDF assumes that you

have access to that book, as the rules for pros-

thetics will not be repeated here.

As the title of this PDF suggests, the rules

and information on prosthetics in this PDF are

designed to take you beyond the information

presented in the main Steam & Steel book and

give you several more options for your cam-

paign.

P ROSTHETIC D URABILITY

“That’s a nice mess you’ve got there,” said Dain as he gave the arm a more critical inspection. Between the

two of them they had managed to control the arm long enough for the wrench to get to the furnace shut down as

well as to evacuate the boiler.

Now, with the arm lying still in a puddle of water and oil, Dain had no trouble seeing what was wrong. Not that

he hadn’t known it before; he’d been around prosthetics long enough to know what was wrong with them by sound

alone. Still, it was nice to be proven right once again.

“What is it, sir?” the young warrior asked, clearly concerned.

“Well,” drawled Dain, “your actuator valve is busted, which is what was causing the piston malfunction. But

you’ve also got a couple of gears binding here,” Dain pointed to the spot, “and the fact that there’s a gash in the

piston and this pipe isn’t helping either.” The wrench paused a moment to make sure he had found everything.

“What was it? Axe blow?”

The young warrior grinned, “Yes, sir, one of them big ones. Took it right on the arm.”

“Yeah, I figured,” Dain turned to his toolbox and pulled out a replacement piston.

“Can it be fixed?”

Dain nodded, calculating in his mind how long it would take to do a passable job and what tools and

materials he would need. “Anything can be fixed, it’s just a matter of time,” the wrench stated mat-

ter-of-factly. Unfortunately, time was something they didn’t have much of.

Just how much damage can that prosthetic

claw take before it is a useless pile of metal?

That depends entirely on what it is made of and

how large it is.

As you read through the list of materials,

keep the following definitions in mind:

Size: This refers to the size of the prosthet-

ic, not the creature. For instance, a steamwork

leg for a human is considered to be a Small-

sized item.

Hardness: How well the prosthetic resists

damage. Whenever the prosthetic takes damage,

subtract its hardness from the damage. Only

damage in excess of its hardness is deducted

from the object’s hit points.

Hit Points: How much damage the pros-

thetic can take before being destroyed and/or

ruined (a destroyed prosthetic no longer func-

tions at all) and must be replaced and/or

repaired.

Energy Attacks: Acid and sonic attacks

deal damage normal damage to prosthetics.

Electricity and fire attacks deal half dam-

age to prosthetics; divide the damage dealt

by 2 before applying the hardness. Cold

attacks deal one-quarter damage to pros-

thetics; divide the damage dealt by 4 before

applying the hardness.

Ranged Weapon Damage: Prosthetics take

half damage from ranged weapons (unless

the weapon is a siege engine or something

similar). Divide the damage dealt by 2

before applying the prosthetic’s hardness.

Note that this is in addition to the half dam-

age that piercing weapons do to prosthet-

ics; in the case of a ranged piercing weapon

divide the damage dealt by 4 before apply-

ing the prosthetic’s hardness.

Immunities : Prosthetics are immune to

nonlethal damage but not to critical hits (it

is always possible that a vital component is

damaged, such as the engine or a piston

thus rendering the entire prosthet-

ic useless).

Magic Prosthetics: Each +1 of enhance-

ment bonus adds 2 to the hardness of the

prosthetic and +10 to the prosthetic’s hit

points.

Damaged Prosthetics: A damaged pros-

thetic remains fully functional until the

prosthetic’s hit points are reduced to 0, at

which point it is destroyed.

Damaged (but not destroyed) prosthetics

can be repaired with the Craft

(Steamworks) skill.

Iron/Steel

This is the default material for most pros-

thetics. It is cheap, durable, and has proven its

mettle in everything from machinery to arms

and armor.

Size Hardness Hit Points

Diminutive 10 2

Tiny 10 5

Small 10 10

Medium 10 20

Large 10 40

Huge 10 80

Gargantuan 10 160

Colossal 10 320

Example: A steamwork arm is of Small size

and thus has 10 hit points while a steamwork

wing is of Medium size and thus has 20 hit

points.

Bronze

This alloy of copper and tin, while easier to

work with than iron, is a poor choice for dura-

bility. Bronze is less resilient than iron, assume

a Hardness of 8 and 15 hit points per inch of

thickness, and its lower melting point also

means that it is less resistant to heat; all bronze

prosthetics powered by conventional fuel-

burning furnaces have their Maintenance

DC increased by 1 due to their reduced

ability to resist the impact of heat over

time. The cost for bronze is the

same as for iron.

Size Hardness Hit Points

Diminutive 8 1

Tiny 8 3

Small 8 5

Medium 8 10

Large 8 20

Huge 8 40

Gargantuan 8 80

Colossal 8 160

Example: A bronze arm is of Small size

and thus has 5 hit points while a bronze wing

is of Medium size and thus has 10 hit points.

Size Hardness Hit Points

Diminutive 15 2

Tiny 15 5

Small 15 10

Medium 15 20

Large 15 40

Huge 15 80

Gargantuan 15 160

Colossal 15 320

Example: A mithral eye would have a

Maintenance DC of 5 and cost 15,000 gp.

Precious Metals

These include platinum, gold, silver, and

copper. They can be applied to prosthetics in

two ways. The first is to take an ordinary pros-

thetic, usually one made of iron, and plate it

with the desired precious metal. In this case,

adding the precious metal has no effect on the

prosthetic (i.e. it has no impact on hardness or

hit points) beyond the aesthetic as the metal

coats the pistons, engine, furnace, etc. of the

prosthetic. Of course, this look comes at a

cost. Multiply the cost of a prosthetic coated in

precious metal by the multiplier given in the

Cost Multiplier (Coat) column in the follow-

ing table:

Metal Cost Cost

Multiplier Multiplier

(Coat) (Construct)

Copper x1.001 x1.01

Silver x1.01 x1.1

Gold x1.1 x2

Platinum x2 x20

Example: Coating an iron jaw (base cost

of 200 gp) in copper would cost an additional

2 sp, in silver 2 gp, in gold 20 gp, and in plat-

inum 200 gp.

The second method is to construct the

entire prosthetic out of the precious metal.

This is usually a bad idea if you are

planning to go into combat, as not

only are these metals less

resilient than iron or

steel, most also have

Adamantine

This ultra-hard material provides the best

possible protection, but it is very expensive;

multiply the listed cost of any prosthetic by 10

if it is made of adamantine.

Size Hardness Hit Points

Diminutive 20 3

Tiny 20 7

Small 20 13

Medium 20 27

Large 20 55

Huge 20 108

Gargantuan 20 216

Colossal 20 532

Example: A steamwork leg made of

adamantine would have a Hardness of 20 and

13 hit points and cost 10,000 gp.

Mithral

As strong as steel but lighter, prosthetics

made of mithral place less stress on the pros-

thetic’s individual parts, reducing the

Maintenance DC of the prosthetic by 2 (i.e. a

mithral chest would have a Maintenance DC

of 5). Of course, consummate with this advan-

tage is the fact that mithral is much more

expensive; a comparable prosthetic of

mithral costs 5 times as much as one

made of iron or steel.

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