Stats
| Basic Information | Production | ||
| Race: | Zerg | Producer: | Larva |
| Life: | 80 | Hotkey: | H |
| Armor: | 0 (3) | Requires: | Hydralisk Den |
| Movement: | Normal | Cost: | 100 Minerals and 50 Gas |
| Cargo Size: | 2 | Supply: | 2 |
| Attributes: | Light - Biological | Build Time: | 44 |
Upgrades
| Name | Hotkey | Cost | Build Time |
| Zerg Missile Attacks Level 1 | A | 100 Minerals + 100 Gas | 160 |
| Upgrades the attacks of all Zerg ground ranged units. | |||
| Zerg Missile Attacks Level 2 | A | 150 Minerals + 150 Gas | 190 |
| Further upgrades the attacks of all Zerg ground ranged units. | |||
| Zerg Missile Attacks Level 3 | A | 200 Minerals + 200 Gas | 220 |
| Maximizes the attacks of all Zerg ground ranged units. | |||
| Zerg Ground Carapace Level 1 | C | 150 Minerals + 150 Gas | 160 |
| Upgrades the armor of all Zerg ground units. | |||
| Zerg Ground Carapace Level 2 | C | 225 Minerals + 225 Gas | 190 |
| Further upgrades the armor of all Zerg ground units. | |||
| Zerg Ground Carapace Level 3 | C | 300 Minerals + 300 Gas | 220 |
| Maximizes the armor of all Zerg ground units. | |||
| Burrow | B | 100 Minerals + 100 Gas | 100 |
| Enables all Zerg ground units to use the Burrow ability. Burrow allows a unit to take cover underground, rendering it unable to attack. A burrowed unit is invisible unless revealed by detectors or effects. | |||
| Grooved Spines | C | 150 Minerals + 150 Gas | 80 |
| Increase the attack range of Hydralisks by +1. | |||
| Muscular Augments | A | 150 Minerals + 150 Gas | 100 |
| Hydralisks move 25% faster off creep. | |||
Weapon
| Name | Target | Range | Speed | Type | Damage |
| Needle Spines | Any | 5 | Fast | Normal (Ranged) | 12 (15) |
Abilities
| Burrow | Buries the unit underground. Burrowed units are unable to move or attack, but they cannot be seen without detection. |
General Strategy
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High-damage ranged unit.
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Able to attack air and ground units.
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Best paired with other unit types to protect their high damage output from enemies.
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Can improve attack range with Grooved Spines upgrade.
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Can burrow with Burrow upgrade.
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Can improve movement speed off of creep with the Muscular Augments upgrade.
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Effective at attacking air units when grouped in large numbers.
Countermeasures
VS Terran
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Use vehicles such as Siege Tanks in Siege Mode to attack Hydralisks from range. Siege Tanks are especially effective when Hydralisks are grouped which can give you the opportunity to eliminate multiple Hydralisks at once.
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Hellions with upgrades kill Hydralisks quickly. Make sure to approach the Hydralisk pack to maximize on the splash damage.
VS Zerg
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Swarms of upgraded Zerglings are able to swiftly surround and destroy individual Hydralisks; similarly, Banelings get a significant boost to their detonation damage against Hydralisks.
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Roaches’ armor and health pools allow them to efficiently defeat Hydralisks.
VS Protoss
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Use Sentries equipped with the “Guardian Shield” ability to significantly reduce damage to your units when faced with large groups of Hydralisks.
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The High Templar’s “Psi Storm” ability is extremely effective against stationary Hydralisks.
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Zealots have the ability to cheaply soak up a large amount of damage from Hydralisks, while dealing a fair amount back. Research Charge to make sure Hydralisks can’t kite.
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Colossus splash damage also destroys Hydralisk swarms.



