A lethal arsenal. Customize weapons, load up specialized ammo, and push survival to the edge of deep space horror.

HEATSIGNATURE is a weapon expansion for the Mothership® Sci-Fi Horror RPG, giving your players the tools to fight, adapt, and survive the horrors of deep space.

Inside, you’ll find 54 pages full of:

• A new inventory system to manage gear under pressure.

• 26 new firearms – handguns, SMGs, shotguns, smart rifles, railguns, a sniper, and anti-material weapons.

• 11 Specialized ammunition types including incendiary, subsonic, flechette, hollow-point, railgun-exclusive, and more.

• 18 Weapon attachments including optics, muzzles, stocks, and under-barrels.

• A weapon profile sheet for quick reference and loadout tracking.

Every piece of equipment is designed with Mothership’s tone in mind: industrial, desperate, and lethal. 

A heat signature. The last thing your target will ever see.