Piston-Drive Heart

Mechanical replacement heart with a calibrated piston pump.

Rules Reference

Field	Value
Capacity Cost	2
Category	cyber-prosthetics
Rek Cost	5200 (Rim medical catalogue standard, fitted at any field clinic)

Notes

Benefit: Mechanical replacement heart with a calibrated piston pump. +2 to Fortitude saves against fatigue, exhaustion, and altitude strain, and you ignore the first Fatigue condition you would gain from sustained exertion each day. Once per encounter you can open the sprint reserve for +10 ft movement for 3 rounds. Minor to moderate benefit level.

Install Risk: Medicine DC 15 surgery to seat the pump and wire the great vessels. Recipient makes a Fortitude save DC 12 or gains Botched Implant: rhythm drift, -2 to Fortitude vs exhaustion until a Medicine DC 13 pacemaker tune.

Origin: Rim medical suppliers and Ironball team physicians who need a reliable off-the-shelf pump that any field surgeon can fit.

Signature: Legit. Kadiss-registered as civilian medical hardware and expected kit on refinery, mining, and Ironball support crews. Raises no flags.

Strain: The pump ticks audibly. -2 to Stealth in quiet or silent conditions, and the telltale cadence is recognizable to anyone who has served in a Rim medic bay. The battery must be serviced every 30 days or the rhythm falters, imposing -1 Fortitude until recharged.