Biovores are the Tyranids’ living artillery: slow, bloated bioforms bred to grow spore mines inside their bodies and launch them at the enemy. They’re rare compared to the swarms, but when the Hive Mind needs to crack a fortified line or silence enemy guns, it sends these gunbeasts.
What a biovore is
The Imperium classifies the creature as Tyranicus patris boletus, though troops just call it a gunbeast. It stands about 2 metres tall, weighs around 2 tonnes, and the Ordo Xenos rates its threat as low, which tells you how they think about a beast that lobs explosives from a distance.
It’s sluggish and bloated, built for a single job: grow spore mines, launch spore mines, repeat. Some accounts describe a symbiotic launcher-organ on its back, swollen with a clutch of volatile offspring. Imperial records first ran into one on Ichar IV.
- Rare compared to gaunts and warriors
- Created to counter enemy long-range firepower
- Possibly incorporate Ork genetic material
| Field | Detail |
|---|---|
| Designation | Biovore |
| Common title | Gunbeast |
| Species name | Tyranicus patris boletus |
| Average height | 2 m |
| Average weight | 2 tonnes |
| First encountered | Ichar IV |
| Role | Indirect fire support |
| Threat evaluation | Low |
How spore mines work
Spore mines grow deep inside the biovore’s body. When it’s ready, a powerful muscle spasm fires them out through a dorsal aperture and hurls them across the battlefield. An internal gas bladder inflates mid-flight, so the mine drifts down rather than dropping.
Here’s the nasty part: they don’t blow up on impact. They wait until they sense a non-Tyranid lifeform nearby, then burst, showering the target with bone shards, toxic gas, and corrosive fluids. That makes them area denial as much as artillery.
Biovores can fire three types of mine. Fragmentation mines shred infantry with bone shards. Bio-acid mines melt armour and flesh with corrosive fluids. Poison mines release toxic gas to choke and kill.
One recorded exception comes from Vivaporius, where biovores evolved to spit balls of slime that hardened and fused a Warlord Titan’s limbs, letting it be captured alive.
- Fragmentation mines shred infantry with bone shards
- Bio-acid mines melt armour and flesh with corrosive fluids
- Poison mines release toxic gas to choke and kill
Why the Hive Mind bothers with them
Biovores are relatively rare. The Hive Mind generally prefers bloody melee, so a creature that sits back and lobs spores doesn’t fit the usual pattern.
But as the Tyranid invasion pushed deeper into the galaxy, it kept running into long-range weaponry it couldn’t just swarm. Biovores were the answer: a way to neutralise enemy guns from a distance. Some sources suggest they carry genes assimilated from Orks.
Biovores in the wider swarm
They sit alongside Pyrovores, which specialise in chemical flames, as the Tyranid equivalent of other species’ artillery. Larger ranged beasts like Exocrines and Tyrannofexes fill out the same support role. In the codex force organisation, biovores are classed as Elites rather than Troops, which fits their specialised support role.
On the tabletop, a biovore is an indirect-fire support unit. It can sit behind cover and lob spore mines at enemy units without needing line of sight, making it a nuisance for gunlines and objective holders.
If you’re facing them, the threat isn’t the biovore itself. It’s where the spore mines land and how long your units can afford to stand near them.
Key facts
- Biovores are Tyranid artillery organisms that grow and launch spore mines.
- They’re roughly 2 metres tall and weigh about 2 tonnes.
- Spore mines detonate on sensing non-Tyranid life, not on impact.
- Three spore mine types exist: fragmentation, bio-acid, and poison.
- First encountered by the Imperium on Ichar IV.
- Classed as Elites and rated a low threat by the Ordo Xenos.
FAQ
What do biovores shoot?
Spore mines, grown inside their bodies and launched through a dorsal aperture. The mines drift down on a gas bladder and detonate when they sense non-Tyranid life nearby, not on impact.
Are biovores common in a Tyranid swarm?
No, they’re relatively rare. The Hive Mind usually favours melee, but it created biovores to deal with enemies who rely on long-range firepower.
What’s a biovore’s species name?
Tyranicus patris boletus. Imperial forces often just call it a gunbeast.
What’s the difference between a biovore and a Pyrovore?
Biovores launch spore mines for indirect fire, while Pyrovores are flamethrower beasts that spew caustic, flammable gas to melt armour and flesh.