Missiles are the bullets. Torpedoes are the scalpel.
Where a missile is a cheap, fast, semi-autonomous sprint weapon fired in swarms, a torpedo is a large, expensive, fully autonomous weapon system fired with deliberation and intent. Torpedoes carry their own point defense, electronic countermeasures, and high-order AI capable of weaving through layered defenses on approach vectors that would baffle a missile's guidance package. They fly longer, hit harder, and think for themselves.
A dreadnought might carry two Grade 9 torpedoes and guard them jealously. When one fires, it means something.
| ISA Classification | Torpedo |
| Type | Self-propelled, fully autonomous munition |
| Test Range | 100,000 km instrumented range; must hold ≥1g for ≥8 min |
| Optimal Range | 50,000–500,000 km |
| Operating Envelope | 10,000–1,000,000 km; flight time up to 10 min |
| Primary Damage | Warhead-dependent (typically high-yield) |
A torpedo is, functionally, a small unmanned spacecraft built around a warhead. It carries its own propulsion, sensors, point defense (micro-PD to shoot down interceptor missiles and incoming fire), ECM systems to confuse and evade enemy targeting, and — critically — a high-order AI guidance system capable of autonomous decision-making during its approach.
This autonomy is what separates torpedoes from missiles. A missile follows a calculated trajectory and makes corrections. A torpedo thinks. It evaluates the defensive environment, selects approach vectors, decides when to use ECM versus evasive maneuvers versus micro-PD, and adapts its attack profile in real time based on what the target's defenses are doing. A good torpedo AI has been compared to a fighter pilot — one that doesn't need to breathe, doesn't get scared, and is perfectly willing to die doing its job.
Torpedoes stay below the subspace threshold during flight — they can't dive, which would make them subspace weapons and very illegal. But they can sustain thrust for up to ten minutes, covering enormous distances while maintaining the maneuverability to evade interception.
Torpedo warheads operate at the upper end of the ISA grade scale. Standard torpedo loadouts for capital ships start at Grade 5 (1–10 kilotons) and go up from there. The heaviest torpedoes — Grade 9 and above — carry warheads in the tens-of-megatons range, enough to core through a super dreadnought or crack open a hardened station.
The same warhead types available for missiles apply to torpedoes: HE, KE, nuclear, fusion, EMP, antimatter, plasma, and gravitic plasma. Torpedo-specific variants include:
Plasma torpedoes — Generate a concentrated cloud of plasma around the target on detonation. Extends plasma's effective range well beyond what ship-mounted plasma weapons can achieve. Operating envelope 10,000–300,000 km.
Gravitic plasma torpedoes — Use gravitic containment instead of magnetic fields, extending range to 25,000–500,000 km with superior coherence. More complex and expensive, but approaching standard torpedo operational distances.
Torpedoes are strategic assets, not tactical ones. Their cost, complexity, and limited magazine capacity mean that every torpedo fired is a deliberate decision by the commanding officer. You don't throw torpedoes at a problem to see what sticks — that's what missiles are for. You fire a torpedo when you need a specific target destroyed and you need it destroyed now.
Capital ships carry torpedoes in small numbers. A destroyer might have a handful. A battlecruiser carries more, but still far fewer than its missile complement. The Archigos's pre-refit loadout included 220 plasma torpedoes — generous for a destroyer-class hull, but dwarfed by its missile magazine.
The AI guidance system is what justifies the torpedo's cost. Against a heavily defended target — a capital ship with overlapping point defense zones, ECM suites, and escort ships screening it — missiles in any reasonable quantity simply can't get through. Their guidance isn't sophisticated enough to adapt to layered defenses.
A torpedo can. It reads the defensive environment, identifies gaps, times its approach to exploit moments when point defense is occupied with other threats, and uses its own countermeasures to create openings. A coordinated torpedo launch — two or three torpedoes approaching from different vectors, cooperating via encrypted datalink — can saturate defenses that would stop a hundred missiles cold.
When a torpedo hits, the engagement changes. A Grade 7 torpedo (100 kilotons to 1 megaton) doesn't just damage a battleship — it destroys one. The warhead yields available to torpedoes are large enough that a single successful hit can be decisive against any ship class short of a super dreadnought.
This is why torpedoes are guarded jealously and fired with intent. Each one represents the potential to remove an enemy capital ship from the order of battle in a single strike. The flip side is that each one is also an enormous investment that's gone forever once launched — hit or miss.
The Grey approach to torpedo technology is, like everything else about the Grey, fundamentally alien and deeply unsettling.
Grey torpedoes are organic constructs built using the same biological technology that produces their ships and other systems. What makes them horrifying is their guidance system. Rather than an artificial AI, Grey torpedoes are guided by a grafted biological intelligence — a living mind integrated into the torpedo's organic control systems.
Reports — largely unconfirmed, mostly coming from encounters that left few survivors to report — describe a process where captured individuals have their minds grafted into torpedo cores. The pain and anger centers of the brain are deliberately stimulated, driving the grafted mind to seek out populated targets with suicidal intensity. The torpedo doesn't just track a ship. It tracks people. It goes after anything populated, and it does so with the desperation of a mind that will do anything to make the pain stop.
This makes Grey torpedoes effectively 100% accurate against populated targets. Decoys don't work — the torpedo can tell the difference between an empty decoy and a crewed ship. ECM doesn't work — the guidance system isn't electronic. Point defense is the only counter, and the organic hull of a Grey torpedo gives it regenerative properties that make even that unreliable.
The handful of encounters with Grey torpedoes in the historical record are uniformly catastrophic. One notable incident — officially classified as a "torpedo mishap" — destroyed a frigate and killed several thousand colonists when the torpedoes, having eliminated all military targets, turned on the nearest populated structure.
They weren't malfunctioning. They were doing exactly what they were built to do.
League — The League treats torpedoes as precision strike weapons integrated into fleet-level tactics. League torpedo doctrine emphasizes coordinated multi-vector launches timed to exploit gaps created by grazer and missile fire. Quality over quantity.
Terrans — The Terrans carry more torpedoes than anyone else, because of course they do. The Bastion-class loads 3,000 HE torpedoes, 1,500 nuclear, and 1,500 fusion. Terran torpedo doctrine mirrors their missile doctrine: volume. Where the League fires three torpedoes with surgical precision, the Terrans fire thirty and rely on the AI to sort it out.
Freelancers — Most Freelancer ships don't carry torpedoes. They're too expensive, too specialized, and require the kind of maintenance infrastructure that independent operators don't have. The occasional Freelancer with a torpedo tube is carrying salvaged military ordnance and saving it for the day they absolutely need to ruin someone's afternoon.
Torpedoes exist to give space combat a strategic layer that missiles and energy weapons can't provide. A missile salvo is a tactical decision — you're trying to overwhelm defenses in the current engagement. A torpedo launch is a strategic decision — you're committing an expensive, irreplaceable asset to destroy a specific target. That distinction shapes how commanders think and how battles flow.
Grey torpedoes are horror weapons. They exist to make the Grey genuinely terrifying at the species level — not just powerful, but wrong in a way that gets under your skin. The "torpedo mishap" that killed colonists isn't a war crime by accident. It's a war crime by design, committed by a species that doesn't share our concept of ethics. That's the point.