Mecha Superstructure

A mecha's superstructure--its exoskeleton, interior braces, and other structural parts--can be made from any sufficiently advanced metal alloy. Whatever its composition, a mecha's superstructure has a hardness that reduces the damage the mecha takes from weapons and collisions.

To build a mecha superstructure from scratch, a character must succeed at a Craft (mechanical) check (DC 30) and a Craft (structural) check (DC 30) after investing the requisite amount of assembly time, based on the mecha's size: Large 150 hours, Huge 300 hours, Gargantuan 600 hours, Colossal 1,200 hours. A character without a mechanical tool kit takes a -4 penalty on both skill checks. The character must also make a Wealth check against the mecha's base purchase DC.

Different types of superstructure materials are presented below and summarized in Table: Superstructure Materials.

Hardness: The amount of damage the material absorbs from a weapon hit or collision.

Base Purchase DC Modifier: The modifier applied to the mecha's base purchase DC.

Restriction: Since mecha require a license to own and operate, the materials used for making them do not require special licenses to purchase.

Table: Superstructure Materials
---- Modified Base Purchase DC ----
Superstructure MaterialHardnessLargeHugeGargantuanColossal
Alumisteel (PL 5)1036404456
Duralloy (PL 6)1540444860
Vanadium (PL 6)2044485264
Neovulcanium (PL 7)2040444860
Neutronite (PL 7)2544485264
Megatanium (PL 8)3040404860

Alumisteel (PL 5)

This easy-to-acquire alloy is lightweight and reasonably strong. Alumisteel can also be used for armor (see Mecha Armor, below).

Hardness: 10.

Base Purchase DC Modifier: -4.

Duralloy (PL 6)

Duralloy is harder, heavier, and more durable than alumisteel. It can also be used to fashion armor (see Mecha Armor, below).

Hardness: 15.

Base Purchase DC Modifier: None.

Vanadium (PL 6)

Vanadium alloy absorbs a respectable amount of damage and is easy to mold.

Hardness: 20.

Base Purchase DC Modifier: +4.

Neovulcanium (PL 7)

Similar to duralloy, neovulcanium uses plasma-forging techniques to create an alloy of unparalleled resilience. Neovulcanium can also be used for armor (see Mecha Armor, below).

Hardness: 20.

Base Purchase DC Modifier: None.

Neutronite (PL 7)

Neutronite is a tough steel alloy into which a weave of free neutrons has been pressed. It is extremely resilient but also incredibly massive, weighing approximately five times more than a similar volume of lead.

Hardness: 25.

Base Purchase DC Modifier: +4.

Megatanium (PL 8)

Sandwiched layers of crystal carbon and neovulcanium held in a magnetic matrix, megatanium is exceedingly hard and durable. Megatanium can also be used for armor (see Mecha Armor, below).

Hardness: 30.

Base Purchase DC Modifier: None.

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