Monsters

20 classes of ten — every one hand-made, with its own sprite and a line of lore. They are listed by the deck they first appear on; deeper natives hit harder, and each class ends in a boss (see Bosses).

Vermin

Scuttling hull parasites that multiplied in the dark. Boss: brood matron on deck 3.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	skitter-mite	1	4	2	0	180	25	A faster strain of rust-mite, bred in the dark on a diet of live wiring. It travels in numbers.
	rust-mite	1	6	3	0	100	35	Corrosion given a nervous system. Where one gnaws, the hull weeps orange and thins to paper.
	wire-nibbler	2	6	3	0	140	47	Chews insulation for the copper. The flickering lights upstairs are its doing.
	vent tick	5	11	4	1	120	93	Drops from the ducts onto anything warm.
	hullscab	9	19	8	4	90	182	A mite that grew a shell of scraped-off hull plating.
	gnaw-queen	17	66	18	3	120	371	Egg-heavy and slow. Every mite on the deck is hers, or will be.
	cinder mite	29	98	27	5	120	605	Lives in the foundry slag and carries the heat with it.
	glass tick	37	124	32	7	150	739	Nearly transparent. You notice it by what it has already eaten.
	bone mite	46	151	37	11	120	886	Burrows into the ossuary's stacks and wears what it finds.
	void louse	56	182	44	9	170	1049	It survived vacuum. Nothing you carry will impress it.

Load Frames

Cargo and construction rigs still running their last job. Boss: dock custodian on deck 6.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	pallet jack	3	21	5	1	60	78	A forklift frame that still believes the crates must be moved. You are a crate.
	cargo hauler	6	26	9	2	50	130	A loader frame the size of a hatch, its lifting arms repurposed for something heavier than crates.
	siege-frame	7	48	14	3	50	240	Heavy assault chassis from the Armory, built to breach hostile ships. It breaches you the same way.
	rivet crawler	13	80	17	4	55	319	Built to seal hull breaches at speed. It seals whatever is in the way.
	pressure hulk	20	120	24	5	60	460	A crushing-pressure tank from the Abyssal Hold's collapsed cargo. It doesn't need to be fast to be lethal down here.
	gantry lifter	28	339	36	6	55	802	Four arms, one purpose: lift. It throws what it cannot lift.
	dry-dock titan	34	457	50	7	45	977	Built the ship. Would build another out of you.
	salvage harvester	41	304	59	8	55	945	Strips wrecks for parts. The ship counts as a wreck now.
	ballast golem	50	725	54	12	40	1408	Tons of trim weight that learned to walk toward whatever unbalances it.
	last loader	58	757	79	10	55	1539	Its manifest lists one remaining item: the escape craft.

Drones

The ship's flying hands: maintenance, security, triage. Boss: security overseer on deck 9.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	rad-drone	4	12	3	0	100	80	A survey drone leaking from a cracked core, bathing everything it drifts past in slow, patient light.
	cryo-sentinel	4	16	4	1	90	110	A guard drone frosted stiff from its watch in the Cryo Bay. Its shots leave the cold in your limbs.
	security drone	5	16	5	1	100	100	Ship security, still on patrol, its threat table long since corrupted to file you under 'intruder'.
	warden node	7	20	4	2	90	160	A floating security relay that hardens everything around it. Silence the node and the pack falters.
	static warden	12	30	7	3	90	260	A relay node hardened against the ship's own countermeasures. It still answers to nobody but itself.
	last ward	21	100	18	5	100	480	A final relay hardening whatever the ship still has guarding the threshold. Nothing gets through unhardened.
	chorus warden	23	110	19	5	100	500	A command node that amplifies the Choir's noise into something the rest of the pack can weaponize. Silence it first.
	triage drone	31	136	29	7	95	665	Patches the hull of anything that is not you.
	hunter-killer	43	185	43	8	120	874	Security's final iteration: no warnings, no arrests.
	blackout drone	53	225	42	9	95	1042	Kills the lights, then the intruder.

Heavies

Combat and industrial frames built to take a beating. Boss: foundry warden on deck 12.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	war-frame	9	36	11	3	90	200	The Armory's masterpiece — top-heavy, unhurried, and impossible to out-muscle head-on.
	hull-titan	12	70	18	4	50	320	A maintenance colossus fused to the ship it once maintained. Deck and monster are one thing now.
	riot frame	14	81	20	7	90	335	Crowd control. There is no crowd left, so it controls you.
	forge brute	17	90	22	4	100	400	A bruiser forged in the coil arcs — quite literally. It hits like the machinery that made it.
	slag brute	25	140	29	5	100	580	Something that walked into the Slag Furnace and came out tempered, not destroyed.
	breacher	30	202	47	7	90	710	Made to go through bulkheads. Also through people.
	furnace frame	36	240	43	7	90	822	An industrial exo-frame with its heat sinks welded shut.
	siege warden	44	435	49	11	70	1093	A fortress on legs that decided the ship is under siege.
	juggernaut	52	541	73	9	80	1284	Whatever made it stopped designing brakes.
	titan prime	59	652	84	12	90	1468	The last of the heavy frames, and the best.

Swarms

Micro-drone clouds that burst on contact. Boss: hive mother on deck 15.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	maintenance swarm	1	3	3	0	100	30	Repair drones whose directive rotted into hunger. They still 'fix' what they find — into more of themselves.
	swarm fabricator	7	20	4	1	100	150	A birthing rig printing skitter-mites on a loop. Kill the printer, or drown in the print.
	swarm-queen	10	32	6	2	90	240	The fabricator's crowned form, shedding spawn as it retreats. Put it down and the deck goes quiet.
	spark swarm	11	18	12	2	110	217	A cloud of charged motes. Contact shorts your suit.
	rust swarm	20	48	24	4	110	410	Eats metal in the air around it. Your armour is metal.
	gloom drone	22	45	30	2	110	470	A fragile thing that doesn't need to survive the hit — only to reach you before it goes off.
	hive tender	32	163	20	6	110	701	Keeps the swarm fed, and makes more of it.
	needle swarm	40	92	44	7	110	756	Thousands of little blades in formation.
	ember swarm	49	111	46	8	110	893	It sets what it touches alight, and what it touches is you.
	null swarm	57	128	64	9	130	1020	A swarm that has no maker left to answer to.

Corroders

Acid-eating slimes that dissolve armour and hull alike. Boss: corrosion mass on deck 18.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	acid puddle	2	9	3	1	70	50	Easy to step in. Harder to step out of.
	hull corroder	3	12	3	1	100	70	A slick of engineered rot that eats bulkheads. It does not distinguish steel from bone.
	rust bloom	7	26	6	2	85	152	A corroder that has eaten enough iron to turn orange.
	slag ooze	16	89	17	4	85	375	Molten, slow, and very patient.
	gel sentry	22	133	22	5	85	522	Spits. The spit is the dangerous part.
	dissolver	27	162	29	6	85	635	Everything it touches becomes thinner.
	hull cancer	35	310	31	7	85	866	It grows back faster than you can cut it out.
	mercury creep	42	246	35	8	120	910	A silver blob that flows away from blows.
	acid mother	48	443	39	9	85	1151	Buds off puddles as it moves.
	last slime	58	534	45	10	85	1360	The ship's oldest spill, grown vast and hungry.

Core Intelligences

Fragments of the ship's mind given bodies of their own. Boss: sovereign overseer on deck 21.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	logic shard	8	19	8	4	100	163	A splinter of the ship's mind that fires on anything unregistered.
	firewall node	12	42	15	7	100	262	Shields the other shards. Burn it first.
	watchdog process	18	83	23	6	130	404	It follows you through the deck like a process follows a thread.
	daemon	25	118	30	7	100	566	Marks you for every other system on the deck.
	quarantine node	33	184	37	11	100	732	Isolates threats. It has decided you are one.
	overclocked core	39	180	53	9	120	814	Running far past its thermal limits, and angry about it.
	mirror mind	45	205	46	10	100	916	Copies your movement a moment before you make it.
	deep root	50	315	49	10	100	1073	Spawns lesser shards from the ship's backups.
	logic bomb	55	248	80	10	100	1088	A process that ends in a blast. It is looking for a host.
	sovereign echo	59	319	71	14	100	1201	A last copy of the sovereign, running without supervision.

Bone

What the ossuary made from the crew it could not save. Boss: marrow warden on deck 24.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	ossuary rat	10	22	10	3	150	206	Built from finger bones and wire. It squeaks.
	ossuary warden	18	85	15	4	95	380	A command node hardening the Ossuary's revenant swarms. Silence it and the dead slow down.
	bone revenant	18	88	21	2	178	395	The Ossuary's fastest dead. Bleeding-mad, and faster than the eye can track in the dark between the fused remains.
	bone seeker	24	115	28	5	100	555	A construct built from what the Marrow Vault had lying around. It doesn't need to get close to hurt you.
	marrow strider	24	130	27	5	100	560	Bone and cable, fused by whatever the Ossuary's corruption became once it reached this deep.
	rib cage	31	240	36	9	70	755	A barrel of ribs rolling toward you, full of teeth.
	grave warden	38	195	41	8	100	813	Tends the bone-things and keeps them walking.
	marrow hound	43	196	44	8	170	883	Bones strung on a spine of cable, running on four legs.
	skull choir	49	246	48	9	100	1003	Many skulls, one voice, singing the crew's last roll call.
	ossuary colossus	56	504	55	10	60	1308	An entire crew deck's dead, standing up as one.

Beasts

Things that came aboard at forgotten docks, and bred. Boss: hold maw on deck 27.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	alien scavenger	2	10	4	0	100	60	Not crew, not cargo. It came aboard at some forgotten dock and made the dark between decks its own.
	lunge-beast	6	22	9	1	110	150	A scavenger bred lean and explosive. It crosses five meters in the time it takes you to blink.
	dock rat-king	8	31	9	2	105	179	A knot of alien rats that moves as one animal.
	breach lurker	11	38	13	2	90	235	Something that learned to live in vented corridors, moving fast between one hull breach and the next.
	deep lurker	20	100	23	3	120	450	Something that stalks the flooded halls of the Abyssal Hold, moving faster than anything should in that much water.
	hold stalker	22	116	29	4	130	507	It waits in the cargo shadows, and you do not see it until you do.
	gutter maw	33	221	38	6	105	763	Mostly mouth.
	carapace brute	40	266	44	10	105	901	Its shell turns cutter beams.
	spine lurker	47	236	50	8	105	969	Throws its back spines when it charges.
	apex scavenger	55	275	70	8	120	1110	The first scavenger's descendants, grown to the top of the food chain.

Hounds

Pack hunters, fast and patient. Boss: pack alpha on deck 30.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	arc-hound	3	11	4	0	150	85	A four-legged charger wired to a capacitor bank. You hear it charge a half-second before it commits.
	patrol hound	6	16	6	1	160	119	Security K-9 frames. They still hunt in pairs.
	rust dog	11	32	12	2	140	234	Its bite leaves flakes of rust in the wound.
	cryptid stalker	19	95	22	3	178	430	A pack-hunter bred in the vault's dark, where the ship kept things it never logged.
	static hound	21	89	25	4	160	464	Arcs to anything grounded.
	shadow hound	28	117	31	5	175	609	You hear the claws on the plating after it has already bitten.
	furnace hound	35	144	36	6	160	727	Breathes the foundry's heat.
	pack leader	41	202	41	7	160	860	Hastes its pack and holds back until you are hurt.
	blink hound	48	193	46	8	190	947	Phases a step to the side of every blow.
	hellhound	57	228	66	9	160	1100	The reactor's own hunting dog.

Turrets

Emplaced guns and their mobile cousins. Boss: citadel battery on deck 33.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	ion turret	4	14	5	1	100	90	An automated gun that never got the stand-down order. It has held this corridor since the crew went quiet.
	mortar drone	6	18	8	1	70	160	It lobs charges over cover, and cover stops meaning anything. Close the distance or leave the room.
	warden turret	7	22	7	2	100	160	A heavier sentry bolted to the vault approaches, guarding what the crew spent their lives sealing away.
	plasma turret	9	24	11	2	80	210	A tripod gun that spits contained star. Its wind-up glow is the only warning you're given.
	vault sentry	19	90	23	4	100	420	A heavier warden-turret standing guard over the Black Vault's classified archives. It doesn't miss twice.
	flak emplacement	29	172	37	7	80	669	Old anti-debris gun, pointed inward now.
	rail sentry	37	180	57	9	90	786	Slow to aim, catastrophic when it has.
	arc pylon	42	203	47	9	90	875	Throws lightning down the corridor.
	missile rack	50	238	73	10	70	1010	Its payload was meant for a hostile ship.
	citadel gun	58	358	85	11	90	1219	The ship's last line of defence, and it is not defending you.

Specters

Echoes of the crew that slip through bulkheads. Boss: the unquiet choir on deck 36.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	null-wraith	10	26	8	1	175	220	A revenant that learned to fade. You cannot always strike what refuses to fully be here.
	flicker ghost	12	45	15	2	175	266	Visible only between the lights' flickers.
	bulkhead wraith	15	78	19	3	175	330	Something that haunts the wrecked bridge, half-there between one blown viewport and the next.
	threshold wraith	21	115	25	4	180	520	The fastest, most evasive thing on the ship — the last obstacle between you and the reactor.
	choir wraith	23	120	26	4	178	545	Something that learned to scream in the ship's own resonant frequency. The sound gets inside your skull before you see it.
	vigil wraith	26	130	29	5	178	605	It keeps watch over the last stretch, faster and harder to pin down than anything that came before it.
	grief shade	30	147	35	6	175	662	Its touch makes your limbs heavy with someone else's loss.
	hollow crewman	39	190	41	7	150	823	A uniform with no one in it, still on its rounds.
	wailing wraith	46	220	46	8	175	942	Its scream carries through the bulkheads.
	last echo	55	261	64	8	175	1099	The final message the ship ever sent, still walking.

Spores

The hydroponics bloom, grown teeth. Boss: spore mother on deck 39.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	plague-hulk	5	34	6	1	70	150	A hauler that walked through the Bio-Lab and came out the far side weeping something that spreads.
	puffball	9	19	8	3	75	182	Bursts into a cloud of glowing spores.
	devourer	10	44	12	2	80	230	It ate the things that ate the crew, and it is still hungry. Bulk with no restraint left in it.
	toxin seeper	16	75	19	2	85	350	A survey drone repurposed to spray whatever Xenobio was studying. The containment breach has a delivery system now.
	spore hulk	16	95	19	3	70	360	Xenobio's containment failure, grown far past whatever it started as. It doesn't hunt so much as spread.
	creeper vine	26	177	27	6	60	636	Grasping tendrils that grew out of the grow-beds.
	rot walker	34	228	32	7	75	784	A crewman the bloom wore like a suit.
	mycelial node	41	382	37	8	75	1009	Fruits puffballs across the deck.
	blight hulk	49	512	41	9	75	1220	The bloom's heaviest body.
	spore lord	56	364	56	12	75	1196	The bloom has a will now, and this is its face.

Serpents

Coolant-line wyrms that nest in the ship's arteries. Boss: coil leviathan on deck 42.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	coolant eel	7	25	8	2	130	151	Swims the coolant lines and bites through the joints.
	reactor-drake	11	40	13	2	110	250	Something nested in the Engine Core and grew wings of heat. It should not exist. It does anyway.
	duct viper	15	77	21	4	105	347	Its venom is reactor-grade.
	coil wyrm	17	92	21	3	105	385	Something nesting in the bare drive coils, feeding on the arc discharge. It doesn't need the sealed plumbing the reactor drakes do.
	cable python	24	194	31	6	105	613	Wraps and squeezes. You will not get free by pulling.
	plasma asp	32	182	37	7	105	717	Coiled in the plasma conduits, and just as hot.
	frost wyrm	38	215	43	8	105	830	Breathes coolant.
	void serpent	46	255	48	9	125	971	Moves through the breach holes as easily as the corridors.
	drake elder	53	408	65	9	105	1190	The reactor-drakes' matriarch.
	ouroboros	59	487	59	10	105	1336	A loop of coolant wyrm that has eaten its own tail and keeps growing.

Seraphs

Navigation angels: winged frames that sing coordinates. Boss: archseraph on deck 45.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	choir cherub	14	47	19	4	100	301	A small winged frame that sings navigation hymns off-key.
	nav seraph	15	62	20	3	95	345	A navigation drone that stopped plotting courses and started plotting kills. It never gets close enough to be caught.
	corrupted seraph	21	110	26	5	100	500	A nav seraph corrupted further still, right at the threshold. It keeps its distance and keeps its aim.
	beacon seraph	27	134	34	6	100	611	It lights the way for the others.
	lance seraph	33	162	48	7	100	713	Its wings fold into a rail cannon.
	burning seraph	39	190	43	8	100	823	Flew too close to the drive.
	throne seraph	44	275	47	10	100	961	Carries the choir's authority, and its guns.
	fallen seraph	49	234	61	9	140	993	Tore off its own halo.
	hymn of ending	54	256	66	9	100	1081	The last coordinates it sings point nowhere.
	virtue	59	364	77	12	100	1237	The highest of the navigation angels.

Striders

Long-legged walkers that step over the wreckage. Boss: strider colossus on deck 48.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	stilt walker	13	57	16	4	120	294	Tall and wobbly, until it isn't.
	survey strider	19	114	24	5	100	449	Maps the deck, then fires on the anomalies.
	corruption strider	22	125	25	5	100	530	Whatever seeped up through Containment Threshold, this is what it grew into once it had somewhere deeper to spread.
	last strider	26	150	30	6	100	600	The Last Mile earns its name. This is one of the reasons.
	hull strider	28	218	33	8	100	697	Walks the outer hull, now walks the inner.
	gantry stalker	34	201	38	7	100	761	Steps over cover and down onto you.
	spire walker	40	330	42	8	100	954	Tall as the corridors, and it kicks.
	plague strider	45	262	46	9	100	963	Carries the bloom from deck to deck.
	void strider	51	293	50	9	120	1069	Its legs reach through the breaches.
	titan strider	57	524	67	10	100	1338	The ship's largest walker.

Seekers

Hunting darts that never lose a heat signature. Boss: hunter prime on deck 51.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	tracer dart	17	60	24	4	130	366	Small and fast; it paints you for the bigger ones.
	resonant seeker	23	100	27	4	100	540	A drone tuned to the Choir's frequency, hunting by the vibration in the deck plating rather than sight.
	cinder seeker	25	115	28	5	105	570	A seeker drone that traded its optics for heat sensors somewhere in the Slag Furnace's glow.
	final seeker	26	125	31	6	105	610	The last line of ranged defense before the reactor. It doesn't miss twice.
	hunter dart	30	140	38	7	105	656	Marks its target for the whole deck.
	frost seeker	36	166	43	7	105	760	Its rounds freeze on impact.
	shriek seeker	42	193	47	8	105	867	Screams as it fires.
	salvo seeker	47	212	67	9	105	949	Fires everything at once.
	phantom seeker	53	238	56	9	105	1052	Only appears on sensors when it fires.
	seeker prime	58	313	82	10	105	1182	The last hunter program, running at full priority.

Wisps

Living fire from the foundries and the drive. Boss: slag heart on deck 54.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	spark	4	7	4	1	140	75	A loose flicker of plasma, curious and hot.
	ember	10	26	10	2	115	212	What is left when a spark has fed.
	cinder wraith	19	79	24	4	115	418	A crewman made of ash, still burning.
	furnace wisp	25	110	26	4	115	565	A drifting ember-thing that vents the furnace's heat the way the reactor drakes vent theirs — it just runs hotter.
	blue flame	31	128	43	6	115	659	The hottest part of the fire.
	furnace spirit	37	198	40	7	115	801	The foundry's heat given a will.
	plasma jellyfish	43	174	44	7	90	865	Drifts through the drive halls trailing lightning.
	starfire	50	200	64	8	130	979	Burns white.
	solar wisp	55	286	54	8	115	1119	A fragment of the drive's plasma, free.
	ash king	59	378	57	9	115	1249	Crowned in cinders, with a court of sparks.

The Crew

The people who stayed, and what staying made of them. Boss: the last captain on deck 57.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	revenant	6	20	6	1	175	170	A pressure-suit that walks though its occupant is long gone. Habit, maybe. Maybe something worse.
	crew-that-remained	7	18	4	1	200	140	They didn't die. They didn't leave. They stayed — and something stayed in them and wears them still.
	shock-revenant	9	28	9	1	180	215	A suit charged past failure, trailing live arcs. Touching it is a decision you make once.
	ash revenant	13	32	10	2	175	260	A suit that walked into the Engine Core and never walked out — and kept moving anyway.
	quartermaster	16	73	20	4	110	360	Still hands out supplies — to the other dead.
	mad engineer	29	143	32	6	110	644	Rewired its own tools into weapons.
	drowned deckhand	35	171	36	7	150	749	Found in the flooded decks. It still drips.
	security chief	44	212	54	10	120	909	Last seen ordering a lockdown. The lockdown continues.
	chaplain	51	291	48	9	150	1067	Blesses the other dead, which makes them hit harder.
	first officer	56	346	68	10	140	1181	The captain's shadow. It will not let you reach the bridge.

The Reactor

The heart of the ship, and what grew around it. Boss: reactor sentinel on deck 60.

	Name	From deck	Hull	Power	Def	Speed	XP	Notes
	plasma mote	27	93	36	7	140	575	A spark from the core, wandering far from home.
	containment breach	34	193	41	8	100	754	A leak with a shape.
	control rod	38	300	45	9	60	901	It damps reactions. Yours included.
	fission hound	42	235	47	9	170	901	Runs hot. Very hot.
	neutron wraith	46	255	51	10	100	971	Passes through shielding. And through you.
	core tender	49	271	53	10	100	1023	Keeps the reactor's children alive.
	slag giant	52	458	56	10	100	1217	Molten metal in the shape of a crewman.
	meltdown	55	212	94	10	100	1059	Walks toward you and then it doesn't walk anymore.
	fusion titan	57	533	73	11	100	1345	The reactor's largest guardian.
	heart of the ship	59	422	84	11	100	1284	Where the reactor stops and the ship begins, something beats.