RimWorld sanguophage: lore and full guide
What sanguophages are, where they come from, and how to run one — hemogen, deathrest, and whether the bite is worth it.
Sanguophages are RimWorld’s vampires: archotech-enhanced xenohumans added by the Biotech DLC, powered by archites (archotech nanomachines) rather than ordinary genes. They never age and never get sick, but they live on hemogen — a resource refined from human blood — and must periodically deathrest. This page is both halves: the lore of where they come from, and the guide to running one.
The lore
The first sanguophage appeared thousands of years ago. A lord-explorer named Varan-Dur tried to seize control of a hyperintelligent archotech and was transformed by it instead. Every sanguophage alive is descended from him — powered not by ordinary genes but by archites, self-replicating machines seeded by archotech superintelligence.
That origin explains the whole package. Archites grant eternal youth, immunity to disease and poison, and a preternatural beauty that lets a sanguophage pass for an ordinary human. It also explains the hunger: the same power demands human blood to sustain it.
Eternal lords ruling billions from slate-black space stations, directing blood sacrifices in the underlayers of the deepest urbworlds.
— how the in-game lore describes the stories told about themBecause they hide in plain sight, nobody knows how many exist. Some treat sanguophages as legends or harmless rarities; others believe they quietly steer entire civilisations. They have been hunted across history for both their destabilising power and their need for blood.
What you get: genes and abilities
Turning a colonist into a sanguophage is one of the strongest permanent upgrades in RimWorld — if you can pay the upkeep. It carries a huge gene load: 57 gene complexity and 8 archite capsules of power, at 0 metabolic efficiency (a normal ×100% hunger rate).
The genes that matter
- Deathless. As long as the brain, head and neck stay intact, the pawn can’t die — a lethal hit instead drops them into an involuntary deathrest until the wounds clear.
- Ageless + Non-senescent. Aging stops by around 18, and they never develop age-related or chronic conditions.
- Perfect immunity. Immune to disease and poison; never sick.
- Scarless. Slowly heals old scars, brain damage and chronic conditions like frail, the way luciferium would.
- Psy-sensitive. They carry psychic sensitivity, which (with Non-senescent and Scarless) makes them near-ideal, low-penalty targets for psychic rituals.
- Low sleep. Even after deathrest they work more hours per day than a baseliner, plus Strong melee, Robust and Fast runner.
The three abilities
Three of those genes are active abilities, and each one spends hemogen when used:
- Piercing spine. Launches a bone spine at an enemy for ranged damage.
- Longjump. Leaps the pawn across the map to close on a target or escape.
- Coagulate. Instantly stanches a wounded pawn’s bleeding to stabilise them in an emergency.
Hemogen: the blood
Hemogen is refined human blood, and it’s what powers a sanguophage. They store up to 100 hemogen and burn 10 per day — roughly one bloodfeed every two days. Running dry isn’t fatal, but the penalty ramps up to ×50% consciousness, +15% pain and a −20 mood hit, which cripples a pawn. As a rough measure, one prisoner can feed about 1.48 sanguophages indefinitely.
| Source | Mood | Upkeep | Bonus |
|---|---|---|---|
| Bloodfeeding | −5 bite (on the victim) | None | Fastest, no storage |
| Hemogen packs | No bite penalty | Storage + hauling work | Slowly trains Medical |
Prisoners beat colonists as blood sources: the blood loss briefly hurts a worker, and the mood cost matters less on a captive. Feeding on masochists, or under a “Bloodfeeders: Revered” precept, avoids the mood penalty entirely.
Deathrest: the sleep
Every ~30 days a sanguophage must deathrest — a dormant hibernation during which their needs freeze. Specialised buildings are how you minimise that downtime.
The real risk is timing: a raid can land while your vampire is asleep. They can wake early, but that inflicts Interrupted deathrest — reduced stats for 5 days.
The weaknesses
Sanguophages have Pyrophobia and Tinderskin — they take extra fire damage and can panic (a Fleeing Fire break) near flames, which makes fire-based enemies like the diabolus and tesseron dangerous. A mind-numb serum stops the panic; a firefoam pop pack helps too.
They also have mild UV sensitivity: −6 mood and ×90% move speed in daylight. Slightly slower by day, faster at night — very on-brand for a vampire.
How to get one
To force it, down or capture a sanguophage, select your target colonist, then right-click the sanguophage and choose Absorb xenogerm. One quirk: because sanguophage is a xenogerm xenotype, the game can occasionally spawn one wearing a vanilla race’s look — Neanderthals, Impids or Yttakin among Empire nobility, Wasters or Pigskins elsewhere. It’s the same sanguophage underneath.
Who to turn, and is it worth it
Implants have that 2-year cooldown, so you can’t convert everyone at once. Pick deliberately.
Scarless and the archite genes wipe brain damage, chronic conditions and aging outright — often better than spending luciferium or a healer mech serum.
They get the most from Strong melee, Strong melee damage, Robust and Longjump, on top of the immortality package.
Implanting erases their existing xenogenes. If you value a pawn’s current genes, don’t turn them.
For most colonists the answer is yes. Eternal youth, disease immunity, scar and chronic-condition cures, a strong melee and mobility kit, and Low Sleep add up to a permanent power spike. The hemogen and deathrest upkeep is real but manageable once you have a prisoner or two and a deathrest setup — and fire is the only thing that seriously threatens them.
FAQ
Are sanguophages worth it in RimWorld?
For most colonists, yes. You gain immortality, disease immunity, scar and chronic-condition healing, and a strong combat kit. The cost is regular blood (hemogen) and periodic deathrest, both manageable once set up.
How do sanguophages feed?
They consume hemogen — 10 per day out of a 100 store. Get it by bloodfeeding on prisoners or by extracting hemogen packs. One prisoner covers about 1.48 sanguophages indefinitely.
What is deathrest?
A mandatory dormant sleep every ~30 days, lasting 4 days in a normal bed or as little as 2.5 in a deathrest casket with accelerators. Waking early causes Interrupted deathrest — reduced stats for 5 days.
Can a sanguophage die?
Not from ordinary wounds. The Deathless gene keeps them alive as long as the brain, head and neck aren’t destroyed — a lethal hit instead forces an involuntary deathrest (and wipes stored hemogen) until the injuries heal. Destroying the head, or burning the body, still kills them.
What are a sanguophage’s weaknesses?
Fire (extra damage plus a pyrophobia panic break) and sunlight (−6 mood, ×90% move speed by day). Implanting any other xenogerm also erases all sanguophage genes.
Where do sanguophages come from in the lore?
All descend from the lord-explorer Varan-Dur, transformed thousands of years ago when he tried to control a hyperintelligent archotech. Archite machines give them their powers — and their thirst.
