Siege Cruiser · Microsun Railgun · Single Hull
Reapers Scorpion “Deathstalker”, one 420 × 180 × 110 m siege cruiser of about 499 kt. A fixed Microsun railgun launches one 120 kg round at 110 km/s every 4.5 s: 10,650 damage, about 2,367 DPS, 100 km reach in 0.91 s. Each 64 kt warhead uses about 2.6 kg of fusion fuel lit by 1 µg of antimatter. Predictive aim at release; the round never tracks and point defence cannot intercept it. A fusion payload grows inside the ring and accelerates down the rails over the 4.5 s firing cycle. The blast spans 15 km across: full damage inside a 3.75 km radius, inverse-square to 2,663 at the 7.5 km outer radius. No shots inside 9.4 km. Friendly fire includes Deathstalker itself. No point defence. Twin 750 GW cores provide 1.5 TW, with 7.5 µg igniter in each core. Sustained gunfire draws about 540 GW, including 377 GW waste heat, leaving about 960 GW for the ship. Two nominal 200 × 100 m radiator vanes operate at about 3,000 K.

01 · In the line
At 7 km/s it takes 14 s to close its own reach of 100 km.
02 · Weapon
Fixed twin-rail accelerator · one 120 kg fusion round every 4.5 s
Predictive aim before launch; no tracking or point-defence interception. A nominal 64 kt antimatter-lit fusion payload. A 15 km blast diameter: 10650 damage within a 3.75 km radius, inverse-square to 2662.5 at the 7.5 km outer radius. 110 km/s straight flight, 100 km reach. Friendly fire includes the firing ship; no firing inside 9.4 km.
10,650 an attack every 4.5s: 2,367 a second. Six attacks land 63,900 from one hull.
03 · Available tech
Bought mid-battle with supply. Each one gives something and costs something.
Ghost-broker survey arrays add a 50% outer firing band. Microsun output falls to 55% beyond the fitted native range; the autopilot holds the extended line. The payload remains unguided and IFF-blind.
Salvaged capacitor banks turn a siege contract into a close execution. The autopilot closes to the 45% breach band for +60% damage, with 15% less damage outside it. The fitted minimum firing range and friendly blast still apply.
Bone Collector crews isolate the hull into expendable compartments. One post-shield hit can remove at most 30% of maximum hull; the added structure costs 12% thrust. Rapid repeated hits still tear it apart.
The Cinder Fleet burns its drive reserve while marching or closing to its firing line: +65% pursuit speed at half turn authority. The burn disengages in combat, and astern thrust remains half of fitted thrust.
A shield gate cut from a dead warship adds 250 shield. At 25% charge or more, a breaking hit loses all hull overflow. The stolen gate must recharge to 25% before it can protect the hull again.
Forge buswork couples both 750 GW reactors to one charging ring. The Cinder Fleet vents the extra launch heat through its radiator wings and takes the missing power from shield containment.
Ghost Conclave brokers supply stolen survey optics and longer accelerator pulses. A predicted firing solution reaches across the deadband; the fusion round still flies straight after release.
Unlicensed Forge containment rings compress the antimatter-lit fusion burn into a more destructive pulse. Sacrificial service space replaces part of the hull reinforcement around the twin cores.
Black Ledger kill contracts carry stolen capital-hull construction records. The proximity solution times the fusion pulse against a large target’s load-bearing structure; smaller hulls receive the ordinary shot.
Bone Collector crews rebuild the four flank-pod yokes around salvaged thrust bearings. Faster translation and gun laying draw power from the shield grid; backing still uses half the fitted forward thrust.
A deliberately failing magnetic bottle spreads the fusion pulse across a wider formation. The Cinder Fleet accepts the same indiscriminate blast against its own ships and increases the firing exclusion zone.
Bone Collector crews graft shield capacitors and projector vanes from dead warships into the carapace. The larger photonic field protects the cruiser, while the heavy salvage equipment taxes its six drives and attitude machinery.
Black-market field exciters tune the fusion pulse to tear through photonic containment. The stolen harmonic package sacrifices the round’s general destructive coupling to break shields harder.