Broken Sorcery
Chapter 12

Engineering

Design and construct tools, gadgets, contraptions, siege weapons, and structures. Selling devices may be lucrative—careful who gets what.

Engineering requires one or two Checks: Optionally Drafting, and Construction.

  • Check: Intelligence Modifier + Engineering Bonuses

  • GM sets one Difficulty for both Checks

  • Collaboration grants Advantage for relevant skills or creative solutions

Combine with Alchemy and Enchanting to create truly magnificent Gear. Get creative!

Drafting

Complex builds require a design phase. You’ll need Drafting Tools: parchment, pen, ink, rulers, a compass, and a flat surface. If only pen and paper are available, the Check is made at Disadvantage.

  • Roll an Engineering Check

Save schematics to build copies—skipping future Drafting for your contraption.

Construction

Work with your GM to determine tools, time, and materials for implementation.

  • Roll an Engineering Check

  • Critical Success (Natural 20): A true masterpiece. The device works flawlessly, granting additional benefits.

  • Fumble (Natural 1): Equipment and personnel are damaged!

  • All materials are ruined on failure

Complexity

COMPLEXITY
Basic Built in an hour or less.
Moderate At least a few hours to build.
Complex Requires schematic and d4 days.
GADGETS D COMPLEXITY MATERIALS
Compass 17 Moderate Wood, metal, water, magnet, & needle.
Goggles 12 Moderate Metal, sand, & a glassblowing shop.
Hands Free Lantern 12 Simple Metal & leather.
Lighter 14 Moderate A small air-tight metal container, fuel injection system, oil, & flint & steel.
Smoke Bombs 14 Moderate Oil, tinder, & wood or metal containers.

Requires an extra Alchemy Check vs Difficulty 14.
Trap ?? ?? ??
Waterproofed Gear 16 Simple Gear, beeswax or pitch, & linseed oil.
SIEGE WEAPONS
Ballista 16 Complex Wood, metal, rope, wire, & a forge or woodshop.
Battering Ram 12 Simple Tree, metal, & ropes.
Catapult or Trebuchet 16 Complex Wood, metal, rope, & a forge or woodshop.
Siege Tower 14 Moderate Wood, metal, rope, pulleys, & a woodshop.
WEAPON MODS
Fire Arrows/Bolts 15 Moderate Arrows, lightweight grenades, glue, & sinew.
Folding Bow or Crossbow 15 Complex Bow or Crossbow, hinges, latches, & a forge or woodshop.
Grappling Crossbow 14 Moderate Crossbow, quality stranded cable, grappling hook, & pulleys.
Grenades 15 Moderate Glass or metal & gunpowder or volatile liquid.

Requires an extra Alchemy Check vs Difficulty 15—which explodes on a Fumble.
Spear 12 Simple Stout wood shaft, knife or stone shard, glue, & sinew.
Spring Loaded Concealed Dagger 13 Complex Dagger, sheath, leather, springs, & metal.
ARMOR MODS
Reinforced Armor 18 Moderate Leather, metal, & a forge.
Shield Spike 14 Moderate Metal & a forge.
Silenced Armor 18 Moderate Leather, padded cloth, Sewing Kit.
Spiked Armor 18 Complex Metal & a forge.