Helldivers in defensive formation as Noxious Terminids swarm from a dark bug cave entrance
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Helldivers 2 Noxious Terminid Update: New Enemies and Bug Caves

A new Noxious Terminid strain and spreading underground bug caves have arrived in Helldivers 2, adding venomous enemies and tougher close fights.

Header image: Helldivers face the new Noxious Terminid strain in Arrowhead's November update. Image: Arrowhead Game Studios.

Arrowhead Game Studios has added a new, venom-themed enemy strain to Helldivers 2, and the change reshapes how bug missions play out across the galactic map. The Ministry of Truth detailed the update in an official Steam Community post on November 3, confirming a new Terminid bloodline and a wider spread of underground bug caves, both already live rather than teased for a future patch.

Terminid-side content updates have historically landed outside the game's numbered Warbond and Major Order cadence, arriving as standalone propaganda-style briefings rather than full patch notes. This one follows that pattern: no build number, no server-downtime window mentioned, just a direct description of what changed and why it matters on the ground.

01What Arrowhead Added in the Noxious Terminid Update

The post, published through Helldivers 2's official Steam news feed, introduces the "Noxious" Terminid strain: fast, venomous bugs built to punish Helldivers who stand still. Arrowhead did not attach a numbered build version to the announcement, so treat the patch number as unconfirmed, but the studio was explicit that both the new enemies and the expanded cave spawns are active on live servers now.

Two new enemy types lead the strain: the Noxious Scavenger and the Noxious Spewer. Both inflict poison on contact, and Super Earth's intel spells out exactly how dangerous that poison gets the longer a Helldiver stays exposed.

02Noxious Scavengers: Small, Fast and Full of Venom

At a glance, Noxious Scavengers look like ordinary Scavengers, but Arrowhead's notes single out their speed as the real threat. They close distance noticeably faster than the base enemy, which makes them harder to track in your sights, and every bite applies venom with almost no delay before the next one. The Ministry of Truth's advice is to meet them with weapons that favor volume over precision, such as shotguns, flamethrowers and grenades, since the Scavengers themselves are fragile once you land a hit.

A Noxious Scavenger closes in, faster and more venomous than the standard strain. Image: Arrowhead Game Studios.
A Noxious Scavenger closes in, faster and more venomous than the standard strain. Image: Arrowhead Game Studios.

03The Noxious Spewer Is the One to Watch

The bigger threat is the Noxious Spewer, which Arrowhead describes as moving with far more speed than a standard Spewer's crawl. It is responsible for the webbing now appearing across infested biomes. At medium range, watch for its Web Spit attack: a single hit strips your ability to sprint, which is exactly what the Spewer wants, since it closes the gap while you're slowed. Its head carries medium armor, but its web-filled abdomen has none at all. Target that weak point carefully, though, because popping the sac triggers a Web Explosion that snares every Helldiver and bug caught nearby.

04Bug Caves Now Spawn Across More Biomes

Alongside the new enemies, Arrowhead confirmed that Terminid cave networks are no longer limited to a handful of worlds. They now have a chance to appear on far more biomes across the galactic map, from scorched deserts to frozen tundras, which means a bug hive can turn up on planets that previously never spawned one. Inside, sightlines are short and corners are blind, which plays directly into the Noxious strain's speed advantage.

Terminid cave networks can now appear across far more biomes on the galactic map. Image: Arrowhead Game Studios.
Terminid cave networks can now appear across far more biomes on the galactic map. Image: Arrowhead Game Studios.

Super Earth's guidance for cave-diving is blunt: bring close-range firepower, stay with your squad, and keep a stim in reserve for whoever wandered ahead alone. The combination of tight corridors and fast, poisonous bugs makes solo cave-clearing considerably riskier than it was before this update.

05How to Manage Poison Damage on the Ground

Every Noxious bite now applies a tracked poison status, shown through a new HUD icon. Arrowhead's post breaks the condition into two tiers: being lightly poisoned hazes your vision and starts a damage-over-time tick, while heavily poisoned increases that damage, strips your ability to sprint and further degrades your vision. Stims clear the status, which is the main reason Arrowhead is urging squads to ration them rather than burn them on cosmetic injuries.

TipKeep at least one stim per Helldiver in reserve before diving into a cave-heavy bug operation. Poison from Noxious Scavengers and Spewers stacks fast, and a squadmate who runs dry mid-fight loses their sprint right when they need it most.

06What This Means for Your Next Drop

None of this is a full balance pass on the Terminid faction, but it is a meaningful escalation for anyone diving into bug-heavy operations. Expect caves to show up on planets where you weren't watching for them, and expect any close-quarters fight to carry a poison tax it didn't before. Squads that lean on shotguns and flamethrowers for crowd control should feel the least disruption; those relying on slower, high-precision weapons will want to rethink their loadout before the next bug campaign.

Practically, that means treating every bug planet as a potential cave planet from now on. Pack a stim-heavy loadout, assign one Helldiver to carry crowd-control ordnance for Spewer encounters, and brief your squad on the new poison icon before you drop, since reacting to it mid-fight costs more time than reading about it does.

Arrowhead's official briefing on the Noxious Terminid update, posted to the HELLDIVERS 2 YouTube channel on November 3, 2026.

FAQ

What is the Noxious Terminid strain in Helldivers 2?

It's a new venom-focused Terminid bloodline Arrowhead added in a November 3, 2026 Steam Community update, led by the fast Noxious Scavenger and the bigger Noxious Spewer, both of which inflict poison on hit.

Do bug caves spawn on more planets now?

Yes. Arrowhead confirmed Terminid cave networks can now appear across more biomes on the galactic map, including deserts and tundras that previously never generated them.

How do I deal with poison damage from Noxious bugs?

Watch the new HUD poison icon and use a stim as soon as you're hit. Stims clear the status, and letting it stack to heavily poisoned removes your ability to sprint.

Is this a full Terminid balance patch?

No confirmed build number was attached to the announcement. It's a standalone content update adding new enemies and cave spawn changes, not a wider weapon or stratagem rebalance.

What's the best way to deal with the Noxious Spewer?

Target its unarmored, web-filled abdomen from a safe distance, since popping it triggers a Web Explosion that snares nearby Helldivers and bugs alike.

Official resources

Priya Nair
Written byPriya Nair

Priya covers patches, updates and announcements for Tutorial.Games, working from developer patch notes, publisher newsrooms and official channels only. If a change affects one of our guides, she flags it to the guides desk the same day.

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