Warframe · Hydroid Prime

Steal their armor. Keep the sea.

Hydroid commands the water. He drowns foes, strips their plating, and leaves a Corrosive tide on every gun in the squad.

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A New Weapon POWERHOUSE - Hydroid guide

TheKengineer. Plunder rework. Hydroid as a gun platform, not the old undertow AFK.

Play here All videos

Update 13 (19 Apr 2014) · Rework Update 34 (Plunder replaces Undertow) · Prime vaulted on a cycle. MR No mastery lock. Sprint 1.05. Madurai · Naramon.

Works on base Hydroid and Hydroid Prime. Polarities differ; the mods on these cards do not require Prime.

By stage

Pick where you are

Just crafted

First Tide

Learn Plunder + Tidal Surge.

Steel Path guns

Corrosive Corsair — Endgame

Viral Tempest. This is 2026 Hydroid.

Objective camp

Kraken Room

Range + Duration Swarm.

Solo tank

Drowned Slow

Gloom over Barrage.

Farming

Pilfering Depths

Pilfering Swarm.

The kit

Rain, dash, steal, kraken

Tempest Barrage

Call a rain on a point. Viral Tempest adds Viral. Helminth bait on Gloom configs.

Tidal Surge

Become a wave. Invulnerable dash. Tidal Impunity cleanses the squad.

Plunder

Steal armor. Buff Corrosive on guns and abilities. The rework.

Tentacle Swarm

Kraken tentacles grab a tile. Pilfering Swarm prints loot.

Loadouts

Five builds

All builds

Starter0–2 FormaStarterHigh confidenceStar ChartShards optional

First Tide

Learn the frame.

Best for: Star Chart, first Hydroid, learning the rework loop

Plunder the room, dash through with Tidal Surge, rain Tempest Barrage. Tentacles wait until you mean to camp.

The 2023 rework made Plunder the kit. Old Undertow Hydroid is gone. Do not look up 2018 videos.

Investment: 2 Forma · Reactor · 1 shard

Inventory unknown · Codex Checked 5 Sept 2026 · PC · Update 43.5

High — How strongly the Codex recommends this for its stated purpose — not a test log.

Dmg: 3/5 Dmg
Sur: 4/5 Sur
En: 2/5 En
Mob: 3/5 Mob
Ease: 5/5 Ease

Your next step: run this until it feels easy. Then First Tide — Star Chart.

Star Chart2–3 FormaModerateHigh confidenceStar ChartSteel Path

First Tide — Star Chart

First serious version.

Best for: Junctions through the Outer Terminus. Steel Path is the next card, not this one.

Plunder the room, dash through with Tidal Surge, rain Tempest Barrage. Tentacles wait until you mean to camp. Primed Continuity and Primed Flow are the first real upgrade — not Blind Rage.

The 2023 rework made Plunder the kit. Old Undertow Hydroid is gone. Do not look up 2018 videos.

Investment: 3 Forma · Reactor · 2 specialised mods

Inventory unknown · Codex Checked 5 Sept 2026 · PC · Update 43.5

High — How strongly the Codex recommends this for its stated purpose — not a test log.

Dmg: 3/5 Dmg
Sur: 4/5 Sur
En: 3/5 En
Mob: 3/5 Mob
Ease: 5/5 Ease

Your next step: run this until it feels easy. Then Corrosive Corsair — Steel Path.

Steel Path3–4 FormaAdvancedMedium confidenceStar ChartSteel PathShards optional

Corrosive Corsair — Steel Path

Your first endgame-capable version.

Best for: Steel Path Star Chart, Circuit, first Archon. Helminth is the next card.

High Strength Plunder. Viral Tempest primes. Guns inherit a huge Corrosive bonus. This is 2026 Hydroid. This is the peak you can run the day Steel Path unlocks — galvanized / arcanes, no Helminth.

Plunder is a weapon buff, an ability buff, and a personal armor pile. That is the identity.

Investment: 4 Forma · Reactor · 1 shard · 4 specialised mods

Not yet · Codex Checked 5 Sept 2026 · PC · Update 43.5

Medium — A solid recommendation with more situational dependencies. Confidence is not verification.

Dmg: 3/5 Dmg
Sur: 3/5 Sur
En: 2/5 En
Mob: 2/5 Mob
Ease: 4/5 Ease

Your next step: run this until it feels easy. Then Corrosive Corsair — Optimised.

Optimised4–5 FormaEndgameMedium confidenceNetracellsArchon HuntsHelminthShards optional

Corrosive Corsair — Optimised

Spend resources to push it.

Best for: Netracells, Archon, EDA. You have Helminth or you don't need it.

High Strength Plunder. Viral Tempest primes. Guns inherit a huge Corrosive bonus. This is 2026 Hydroid.

Plunder is a weapon buff, an ability buff, and a personal armor pile. That is the identity.

Investment: 5 Forma · Reactor · Helminth (Nourish (Grendel) or Breach Surge (Wisp)) · 2 shards · 5 specialised mods

Not yet · Codex Checked 5 Sept 2026 · PC · Update 43.5

Medium — A solid recommendation with more situational dependencies. Confidence is not verification.

Dmg: 3/5 Dmg
Sur: 3/5 Sur
En: 2/5 En
Mob: 2/5 Mob
Ease: 3/5 Ease

Your next step: run this until it feels easy. Then Corrosive Corsair — Endgame.

Needs Helminth or shards. Open the Starter first if those are locked.

Endgame4–5 FormaEndgameMedium confidenceSteel PathHelminthShards optional

Corrosive Corsair — Endgame

Only if you actually need it.

Best for: endgame / endurance Grineer, weapon platforms, anyone who picked Hydroid to peel armor

High Strength Plunder. Viral Tempest primes. Guns inherit a huge Corrosive bonus. This is 2026 Hydroid.

Plunder is a weapon buff, an ability buff, and a personal armor pile. That is the identity.

Investment: 5 Forma · Reactor · Helminth (Nourish (Grendel) or Breach Surge (Wisp)) · 2 shards · 5 specialised mods

Not yet · Codex Checked 5 Sept 2026 · PC · Update 43.5

Medium — A solid recommendation with more situational dependencies. Confidence is not verification.

Dmg: 3/5 Dmg
Sur: 3/5 Sur
En: 2/5 En
Mob: 2/5 Mob
Ease: 2/5 Ease

Your next step: stop here unless a specialist card fits the mission.

Needs Helminth or shards. Open the Starter first if those are locked.

Steel Path3–4 FormaAdvancedMedium confidenceFarmingDisruptionShards optional

Kraken Room

Your first endgame-capable version.

Best for: Defense, Interception, Disruption, any mission where you stand still on purpose

Tentacle Swarm owns the tile. Duration and Range. Enemies flail while you Plunder and shoot.

Hydroid is still one of the best 'this tile is mine' frames after the rework.

Investment: 4 Forma · Reactor · 2 shards · 2 specialised mods

Not yet · Codex Checked 5 Sept 2026 · PC · Update 43.5

Medium — A solid recommendation with more situational dependencies. Confidence is not verification.

Dmg: 2/5 Dmg
Sur: 3/5 Sur
En: 2/5 En
Mob: 2/5 Mob
Ease: 4/5 Ease

Your next step: run this until it feels easy. Then Corrosive Corsair — Optimised.

Endgame4 FormaEndgameMedium confidenceSteel PathHelminthShards optional

Drowned Slow

Only if you actually need it.

Best for: Solo Steel Path, Eximus rooms, people who want Hydroid to stand in the puddle and live

Gloom over Tempest Barrage. Plunder strip plus a slow aura. You become a sticky pirate tank.

Gloom is the Helminth tank button. Hydroid already wanted to stand in a room.

Investment: 4 Forma · Reactor · Helminth (Gloom (Sevagoth)) · 2 shards · 4 specialised mods

Not yet · Codex Checked 5 Sept 2026 · PC · Update 43.5

Medium — A solid recommendation with more situational dependencies. Confidence is not verification.

Dmg: 4/5 Dmg
Sur: 4/5 Sur
En: 2/5 En
Mob: 3/5 Mob
Ease: 2/5 Ease

Your next step: stop here unless a specialist card fits the mission.

Needs Helminth or shards. Open the Starter first if those are locked.

Endgame4–5 FormaEndgameMedium confidenceSteel PathFarmingShards optional

Pilfering Depths

Only if you actually need it.

Best for: Farming runs, Survival loot, people who already own Nekros and want a second loot frame

Pilfering Swarm plus Plunder. Tentacles print extra drops. You still strip so the pile actually dies.

Pilfering Swarm is still a real loot tool in 2026. It stacks with boosters and a Nekros.

Investment: 5 Forma · Reactor · 2 shards · 2 specialised mods

Not yet · Codex Checked 5 Sept 2026 · PC · Update 43.5

Medium — A solid recommendation with more situational dependencies. Confidence is not verification.

Dmg: 3/5 Dmg
Sur: 2/5 Sur
En: 2/5 En
Mob: 2/5 Mob
Ease: 2/5 Ease

Your next step: stop here unless a specialist card fits the mission.

Needs Helminth or shards. Open the Starter first if those are locked.

First week

Starter rotation

Don't

Key mistakes

Playing pre-rework Hydroid
There is no Undertow puddle. You are not a AFK kraken. Press 3.
Plundering an empty hallway
The buff scales with enemies and Corrosive stacks. Barrage first, then steal a real pack.
Skipping Duration on Tentacle configs
A 8-second kraken is a gimmick. Duration is the ability.