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Myth unit. Grows heads as it kills enemy soldiers and myth units.
—In-game description

The Hydra (plural: Hydrai) is a legendary many-headed reptilian monster. In Age of Mythology, it is a Heroic Age Greek myth unit available to worshipers of Dionysus.

Special ability[]

  • AoMR ability Polycephaly Hydra icon Polycephaly (Passive): The Hydra gains an extra head based on the total damage dealt, up to a maximum of five heads. Each head adds 100% to its attack.
    HeadsTotal damage dealtAttack Damage
    1< 15030 Hack Attack hack / 15 Crush Attackcrush
    2150 and < 50060 Hack Attack hack / 30 Crush Attackcrush
    3500 and < 1,25090 Hack Attack hack / 45 Crush Attackcrush
    41,250 and < 2,500120 Hack Attack hack / 60 Crush Attackcrush
    52,500150 Hack Attack hack / 75 Crush Attackcrush

Further statistics[]

Myth technologies
Hit points AoMR Dionysia icon Dionysia (+5%)
AoMR Mythic Age icon Mythic Age (+20%)
AoMR Wonder Age icon Wonder Age (+100%)
Regeneration AoMR Chthonic Rites icon Chthonic Rites (150 hit points per minute)
Attack AoMR Monstrous Rage icon Monstrous Rage (+25%, Hera)
AoMR Mythic Age icon Mythic Age (+20%)
AoMR Wonder Age icon Wonder Age (+100%)
Movement speed AoMR Wonder Age icon Wonder Age (+20%)

Relics[]

Tactics[]

Hydras attack by biting at adjacent enemies. Technically, their long necks enable them to attack at very short range, but this rarely makes a difference. While Hydras do not have a special attack, they do gradually increase their attack in proportion to the amount of damage dealt. A Hydra's attack increases with each head it grows. The starting stat for the hack attack is 30 and crush is 15, and it increases to a maximum of 150 and 75 respectively (a Hydra would have to deal 1,600 damage to fully evolve). Animals killed by the Hydra count increase the attack as well, so one tactic is to set a Hydra on a pack of harmless animals in order to gain an undamaged, improved Hydra.

The Hydra's attack also deals crush damage, making it good at destroying buildings. They are powerful in combat as they get even stronger with the number of opponents they kill. They also have a lot of armor and hit points so can last prolonged battles. They are strong against other myth units but like all myth units are countered by heroes.

Changelog[]

Aom original icon Age of Mythology[]

  • Hydrai do 20 hack and 10 crush damage per second, have 40% pierce armor, and cost 5 population.
  • Hydrai gain no additional hit points or attack in the Mythic Age.
  • Hydrai gain a damage bonus by killing units, growing an extra head after killing 3 units and increasing its base damage by 16.67% per unit.
    HeadsKilling unitsAttack Damage
    1020 Hack Attack hack / 10 Crush Attackcrush
    123.3 Hack Attack hack / 11.7 Crush Attackcrush
    226.7 Hack Attack hack / 13.3 Crush Attackcrush
    2330 Hack Attack hack / 15 Crush Attackcrush
    433.3 Hack Attack hack / 16.7 Crush Attackcrush
    536.7 Hack Attack hack / 18.3 Crush Attackcrush
    3640 Hack Attack hack / 20 Crush Attackcrush
    743.3 Hack Attack hack / 21.7 Crush Attackcrush
    846.7 Hack Attack hack / 23.3 Crush Attackcrush
    4950 Hack Attack hack / 25 Crush Attackcrush
    1053.3 Hack Attack hack / 26.7 Crush Attackcrush
    1156.7 Hack Attack hack / 28.3 Crush Attackcrush
    51260 Hack Attack hack / 30 Crush Attackcrush

AoMIcon-Retold Retold[]

  • Hydrai do 30 hack and 15 crush damage per hit. Damage per second remains unchanged at 20 hack and 10 crush.
  • Hydrai have 50% pierce armor and cost 4 population.
  • Hydrai gain +20% hit points & attack in the Mythic Age. They further gain +100% hit points, +100% attack, and +20% speed in the Wonder Age.
  • Hydrai gain a damage bonus by damage dealt, growing an extra head and increasing base damage by 100% per total amount of damage.
  • With update 17.27932, the damage needed to grow the second head is increased from 100 to 150, the third head from 400 to 500, the fourth from 800 to 1,250, and the fifth from 1,600 to 2,500.

Mythology[]

Scientific name -- Hydra lernaea
Size -- 20,000+ lbs.
Diet -- carnivore, especially cattle and humans

Another of the fierce offspring of Echinda
[sic] and Typhon, the Hydra was a large serpent with multiple heads and poisonous breath. Killing the Hydra near the city of Lerna in Argolis was the second of Heracles' twelve tasks. Each time he cut off one of the Hydra's heads, however, two more grew back. A nephew helped him by cauterizing each wound as a head was lopped off. The last head was immortal, so Heracles buried it under a large rock. Once the beast's body was dead, Heracles dipped his arrowheads into its blood, giving them extra potency.
—In-game help section

Trivia[]

  • The Hydra was originally a naval myth unit, but it was split in 2 to create the naval Scylla and the terrestrial Hydra.
  • The relation between Hydra and Scylla might be a reference to the uncommon misconception that Sauropods and Plesiosaurs are closely related.
  • The Hydra in Age of Mythology seems to be a species of carnivorous sauropod or terrestrial plesiosaur instead of the more classical serpentine depictions/descriptions of the creature. In Retold, its features are made more fantastical.

Gallery[]

Video[]

Myth units in Age of Mythology
AoMR Greeks icon Greeks
AoMR Archaic Age icon Archaic Age AoMR Pegasus icon Pegasus · AoMR Hippocampus icon Hippocampus · AoMR Shade of Hades icon Shade of Hades
AoMR Classical Age icon Classical Age AoMR Centaur icon Centaur · AoMR Minotaur icon Minotaur · AoMR Cyclops icon Cyclops
AoMR Heroic Age icon Heroic Age AoMR Nemean Lion icon Nemean Lion · AoMR Hydra icon Hydra · AoMR Scylla icon Scylla · AoMR Manticore icon Manticore
AoMR Mythic Age icon Mythic Age AoMR Colossus icon Colossus · AoMR Medusa icon Medusa · AoMR Carcinos icon Carcinos · AoMR Chimera icon Chimera
AoMR Egyptians icon Egyptians
AoMR Archaic Age icon Archaic Age AoMR Baboon of Set icon Baboon of Set
AoMR Classical Age icon Classical Age AoMR Anubite icon Anubite · AoMR Serpent icon Serpent · AoMR Sea Snake icon Sea Snake · AoMR Sphinx icon Sphinx · AoMR Wadjet icon Wadjet · AoMR Gazelle of Set icon Gazelle of Set · AoMR Hyena of Set icon Hyena of Set
AoMR Heroic Age icon Heroic Age AoMR Petsuchos icon Petsuchos · AoMR Roc icon Roc · AoMR Scarab icon Scarab · AoMR Leviathan icon Leviathan · AoMR Scorpion Man icon Scorpion Man · AoMR Minion icon Minion · AoMR Giraffe of Set icon Giraffe of Set · AoMR Crocodile of Set icon Crocodile of Set
AoMR Mythic Age icon Mythic Age AoMR Phoenix icon Phoenix (AoMR Phoenix Egg icon Phoenix Egg· AoMR War Turtle icon War Turtle · AoMR Avenger icon Avenger · AoMR Mummy icon Mummy · AoMR Hippopotamus of Set icon Hippopotamus of Set · AoMR Rhinoceros of Set icon Rhinoceros of Set · AoMR Elephant of Set icon Elephant of Set
AoMR Norse icon Norse
AoMR Archaic Age icon Archaic Age AoMR Raven icon Raven
AoMR Classical Age icon Classical Age AoMR Troll icon Troll · AoMR Valkyrie icon Valkyrie · AoMR Einherjar icon Einheri · AoMR Draugr icon Draugr
AoMR Heroic Age icon Heroic Age AoMR Kraken icon Kraken · AoMR Mountain Giant icon Mountain Giant · AoMR Walking Woods unit icon Walking Woods · AoMR Frost Giant icon Frost Giant · AoMR Battle Boar icon Battle Boar · AoMR Rock Giant icon Rock Giant
AoMR Mythic Age icon Mythic Age AoMR Jormun Elver icon Jormun Elver · AoMR Fimbulwinter Wolf icon Fimbulwinter Wolf · AoMR Fenris Wolf Brood icon Fenris Wolf Brood · AoMR Fire Giant icon Fire Giant · AoMR Nidhogg unit icon Nidhogg · AoMR Fafnir icon Fafnir
AoMR Atlanteans icon Atlanteans
AoMR Classical Age icon Classical Age AoMR Automaton icon Automaton · AoMR Promethean icon Promethean (AoMR Promethean Offspring icon Promethean Offspring· AoMR Caladria icon Caladria · AoMR Servant icon Servant · AoMR Carnivora unit icon Carnivora
AoMR Heroic Age icon Heroic Age AoMR Nereid icon Nereid · AoMR Satyr icon Satyr · AoMR Stymphalian Bird icon Stymphalian Bird · AoMR Dryad icon Dryad · AoMR Behemoth icon Behemoth
AoMR Mythic Age icon Mythic Age AoMR Centimanus icon Centimanus · AoMR Man O' War icon Man O' War · AoMR Argus icon Argus · AoMR Lampades icon Lampades · AoMR Tartarian Spawn icon Tartarian Spawn
ChinesePortrait Chinese
AoMR Classical Age icon Classical Age QilinIcon Qilin · MonkeyKingIcon Monkey King · TerracottaWarriorIcon Terracotta Warrior
AoMR Heroic Age icon Heroic Age WarSalamanderIcon War Salamander · JiangshiIcon Jiangshi · PixiuIcon Pixiu
AoMR Mythic Age icon Mythic Age AzureDragonIcon Azure Dragon · DragonTurtleIcon Dragon Turtle · VermilionBirdIcon Vermilion Bird · WhiteTigerIcon White Tiger · EarthDragonIcon Earth Dragon
Other
Common AoMR Greek Titan iconAoMR Egyptian Titan iconAoMR Norse Titan iconAoMR Atlantean Titan iconTitanChineseIcon Titan
Campaign AzureDragonIcon Ao Kuang · Titan Gaia Icon Gaia · Titan Kronos Icon Kronos · PolarBearIcon Polaris · Titan Prometheus Icon Prometheus · AnubiteIcon Theris*
Cheat Bella icon Bella · WalkingWoodsIcon Walking Berry Bush
Scenario Editor-exclusive AoM Vulture Icon Harpy · AoMR Fenris Wolf Brood icon Ornlu · MountainGiantIcon Santa · AoM Vulture Icon Vulture
Cut ApepIcon Apep · MinotaurIcon Golem · Griffon Icon Griffon · CyclopsIcon Trollkarien
Units in Age of Mythology
Common
Non-military AoMR Fishing Ship Greek iconAoMR Fishing Ship Egyptian iconAoMR Fishing Ship Norse iconAoMR Fishing Ship Atlantean iconFishingshipchineseicon Fishing Ship · AoMR Transport Ship Greek iconAoMR Transport Ship Egyptian iconAoMR Transport Ship Norse iconAoMR Transport Ship Atlantean iconTransportchineseicon Transport Ship · Caravan (AoMR Caravan Greek icon Donkey · AoMR Caravan Egyptian icon Camel · AoMR Caravan Norse icon Ox · AoMR Caravan Atlantean icon Llama · Yak Caravan Icon Yak)
Myth units AoMR Greek Titan iconAoMR Egyptian Titan iconAoMR Norse Titan iconAoMR Atlantean Titan iconTitanChineseIcon Titan
AoMR Greeks icon Greeks
Non-military AoMR Villager Greek icon Villager · AoMR Kataskopos icon Kataskopos
Infantry AoMR Hoplite icon Hoplite · AoMR Hypaspist icon Hypaspist · AoMR Myrmidon icon Myrmidon (Zeus) · AoMR Militia icon Militia (Poseidon)
Archer AoMR Toxotes icon Toxotes · AoMR Peltast icon Peltast · AoMR Gastraphetoros icon Gastraphetoros (Hades)
Cavalry AoMR Hippeus icon Hippeus · AoMR Prodromos icon Prodromos · AoMR Hetairos icon Hetairos (Poseidon)
Siege AoMR Petrobolos icon Petrobolos · AoMR Helepolis icon Helepolis
Ships AoMR Trireme icon Trireme · AoMR Pentekonter icon Pentekonter · AoMR Juggernaut icon Juggernaut
Heroes PhysicianIcon Hippocrates
Zeus : AoMR Jason icon Jason · AoMR Odysseus icon Odysseus · AoMR Heracles icon Heracles · AoMR Bellerophon icon Bellerophon
Poseidon : AoMR Theseus icon Theseus · AoMR Atalanta icon Atalanta · AoMR Hippolyta icon Hippolyta · AoMR Polyphemus icon Polyphemus
Hades : AoMR Ajax SPC icon Ajax · AoMR Achilles icon Achilles · AoMR Chiron icon Chiron · AoMR Perseus icon Perseus
Aphrodite : AoMR The Argo icon The Argo
Myth units AoMR Pegasus icon Pegasus · AoMR Hippocampus icon Hippocampus · AoMR Centaur icon Centaur · AoMR Minotaur icon Minotaur · AoMR Cyclops icon Cyclops · AoMR Nemean Lion icon Nemean Lion · AoMR Hydra icon Hydra · AoMR Scylla icon Scylla · AoMR Manticore icon Manticore · AoMR Colossus icon Colossus · AoMR Medusa icon Medusa · AoMR Carcinos icon Carcinos · AoMR Shade of Hades icon Shade of Hades · AoMR Chimera icon Chimera
AoMR Egyptians icon Egyptians
Non-military AoMR Laborer icon Laborer
Infantry AoMR Spearman icon Spearman · AoMR Axeman icon Axeman · AoMR Mercenary icon Mercenary · Khopesh Swordsman Icon Khopesh Swordsman
Archer AoMR Slinger icon Slinger · AoMR Chariot Archer icon Chariot Archer
Cavalry AoMR Camel Rider icon Camel Rider · AoMR War Elephant icon War Elephant · AoMR Mercenary Cavalry icon Mercenary Cavalry
Siege AoMR Catapult icon Catapult · AoMR Siege Tower icon Siege Tower
Ships AoMR Kebenit icon Kebenit · AoMR Ramming Galley icon Ramming Galley · AoMR War Barge icon War Barge · AoMR Lost Ship icon Lost Ship
Heroes AoMR Pharaoh icon Pharaoh · AoMR Priest icon Priest · AoMR Son of Osiris icon Son of Osiris
Myth units AoMR Anubite icon Anubite · AoMR Serpent icon Serpent / AoMR Sea Snake icon Sea Snake · AoMR Sphinx icon Sphinx · AoMR Wadjet icon Wadjet · AoMR Petsuchos icon Petsuchos · AoMR Roc icon Roc · AoMR Scarab icon Scarab · AoMR Leviathan icon Leviathan · AoMR Scorpion Man icon Scorpion Man · AoMR Minion icon Minion · AoMR Phoenix icon Phoenix · AoMR War Turtle icon War Turtle · AoMR Avenger icon Avenger · AoMR Mummy icon Mummy · AoMR Phoenix Egg icon Phoenix Egg
AoMR Baboon of Set icon Baboon of Set · AoMR Gazelle of Set icon Gazelle of Set · AoMR Hyena of Set icon Hyena of Set · AoMR Giraffe of Set icon Giraffe of Set · AoMR Crocodile of Set icon Crocodile of Set · AoMR Hippopotamus of Set icon Hippopotamus of Set · AoMR Rhinoceros of Set icon Rhinoceros of Set · AoMR Elephant of Set icon Elephant of Set
AoMR Norse icon Norse
Non-military AoMR Gatherer icon Gatherer · AoMR Dwarf icon Dwarf · AoMR Ox Cart icon Ox Cart
Infantry AoMR Berserk icon Berserk · AoMR Throwing Axeman icon Throwing Axeman · AoMR Huskarl icon Huskarl · AoMR Hirdman icon Hirdman
Archer Bogsveigir icon Bogsveigir
Cavalry AoMR Raiding Cavalry icon Raiding Cavalry · AoMR Jarl icon Jarl
Siege AoMR Portable Ram icon Portable Ram · AoMR Ballista icon Ballista
Ships AoMR Longboat icon Longboat · AoMR Dreki icon Dreki · AoMR Dragon Ship icon Dragon Ship
Heroes AoMR Hersir icon Hersir · AoMR Hero of Ragnarok iconAoMR Hero of Ragnarok Dwarf icon Hero of Ragnarok · AoMR Godi icon Godi · AoMR Gullinbursti unit icon Gullinbursti
Myth units AoMR Raven icon Raven · AoMR Troll icon Troll · AoMR Valkyrie icon Valkyrie · AoMR Einherjar icon Einheri · AoMR Kraken icon Kraken · AoMR Mountain Giant icon Mountain Giant · AoMR Walking Woods unit icon Walking Woods · AoMR Frost Giant icon Frost Giant · AoMR Battle Boar icon Battle Boar · AoMR Jormun Elver icon Jormun Elver · AoMR Fimbulwinter Wolf icon Fimbulwinter Wolf · AoMR Fenris Wolf Brood icon Fenris Wolf Brood · AoMR Fire Giant icon Fire Giant · AoMR Nidhogg unit icon Nidhogg · AoMR Draugr icon Draugr · AoMR Rock Giant icon Rock Giant · AoMR Fafnir icon Fafnir
AoMR Atlanteans icon Atlanteans
Non-military AoMR Citizen icon Citizen · AoMR Oracle unit icon Oracle
Infantry AoMR Murmillo icon Murmillo · AoMR Katapeltes icon Katapeltes · AoMR Destroyer icon Destroyer · AoMR Fanatic icon Fanatic
Archer AoMR Arcus icon Arcus · AoMR Turma icon Turma
Cavalry AoMR Contarius icon Contarius
Siege AoMR Cheiroballista icon Cheiroballista · AoMR Fire Siphon icon Fire Siphon · Atlantean Onager Icon Onager
Ships AoMR Bireme icon Bireme · AoMR Fire Ship icon Fire Ship · AoMR Siege Bireme icon Siege Bireme
Myth units AoMR Automaton icon Automaton · AoMR Promethean icon Promethean (AoMR Promethean Offspring icon Promethean Offspring· AoMR Caladria icon Caladria · AoMR Servant icon Servant · AoMR Carnivora unit icon Carnivora · AoMR Nereid icon Nereid · AoMR Satyr icon Satyr · AoMR Stymphalian Bird icon Stymphalian Bird · AoMR Dryad icon Dryad · AoMR Behemoth icon Behemoth · AoMR Centimanus icon Centimanus · AoMR Man O' War icon Man O' War · AoMR Argus icon Argus · AoMR Lampades icon Lampades · AoMR Tartarian Spawn icon Tartarian Spawn
Other AoMR Spider Egg icon Spider egg
ChinesePortrait Chinese
Non-military PeasantIcon Peasant
Infantry Chinese Halberdier Icon Halberdier
Archer Chu Ko Nu Icon Chu Ko Nu · Mounted Archer Icon Mounted Archer
Cavalry CataphractIcon Cataphract · General Icon General · Scout Cavalry Icon Scout Cavalry · War Chariot Icon War Chariot
Siege Fire Lance Icon Fire Lance · Sitting Tiger Icon Sitting Tiger
Ships Junk Icon Junk · Fire Ship Chinese Icon Fire Ship · Siege Junk Icon Siege Junk
Heroes AoM Monk Icon Monk · Immortal Icon Immortal
Myth units QilinIcon Qilin · MonkeyKingIcon Monkey King · TerracottaWarriorIcon Terracotta Warrior · WarSalamanderIcon War Salamander · JiangshiIcon Jiangshi · PixiuIcon Pixiu · AzureDragonIcon Azure Dragon · DragonTurtleIcon Dragon Turtle · VermilionBirdIcon Vermilion Bird · WhiteTigerIcon White Tiger · EarthDragonIcon Earth Dragon
Other (non-campaign exclusive)
Cheat units AoMR Bella icon Bella · AoMR Flying Purple Hippo icon Flying Purple Hippo · AoMR Forkboy icon Forkboy · AoMR Lazer Bear icon Lazer Bear · AoMR Chicken icon Methane Chicken · AoMR Walking Woods unit icon Walking Berry Bush
Animals Hour of Alpacas Alfred · AoMR Arctic Wolf icon Arctic Wolf · AoMR Aurochs icon Aurochs · AoMR Baboon icon Baboon · AoMR Bear icon Bear · AoMR Boar icon Boar · AoMR Caribou icon Caribou · AoMR Chicken icon Chicken · AoMR Cow icon Cow · AoMR Crocodile icon Crocodile · AoMR Crowned Crane icon Crowned Crane · AoMR Deer icon Deer · DuckAoM icon Duck · AoMR Hawk icon Bird: Eagle, Hawk, Parrot, and Vulture · AoMR Elephant icon (Indian) Elephant · AoMR Elk icon Elk · AoMR Gazelle icon Gazelle · AoMR Lion icon Golden Lion · AoMR Giraffe icon Giraffe · AoMR Goat icon Goat · AoMR Harpy icon Harpy · AoMR Hippopotamus icon Hippopotamus · AoMR Hyena icon Hyena · AoMR Lion icon Lion · LizardAoM icon Lizard · AoMR Monkey icon Monkey · PandaAoM icon Panda Bear · AoMR Pig icon Pig · AoMR Polar Bear icon Polar Bear · RamAoM icon Ram · AoMR Monkey icon Relic Monkey · AoMR Rhinoceros icon Rhinoceros · ShadeIcon Shade (RM) · TigerAoM icon Tiger · AoMR Walrus icon Walrus · AoMR Water Buffalo icon Water Buffalo · AoMR Wolf icon Wolf · YakiconAoM Yak · AoMR Zebra icon Zebra
Scenario Editor AchillesIcon Cataphract · Wolf icon Dog · AoM Vulture Icon Harpy · AoMR Monkey Raft icon Monkey Raft · FenrisWolfBroodIcon Ornlu · AoMR Regent icon Regent · Transportegypticon Raft · Elk icon Reindeer · MountainGiantIcon Santa · Immortal Icon Servant Chinese · AoM Vulture Icon Vulture
Cut AoMR Greeks icon Greeks: Oxybeles
AoMR Egyptians icon Egyptians: Chariot · Gaiassa
AoMR Norse icon Norse: Knarr
ChinesePortrait Chinese: Guandao Pikeman · Meteor Hammer · Rocket Artillery
Nature: Unicorn · Camel icon AoM Wild Camel · Nubian Goat · Wild Horse · Shore Fish · Anchovies · Musk Ox
Hidden ApepIcon Apep · Bondi Icon Bondi · MinotaurIcon Golem · Griffon Icon Griffon · Revealer · CyclopsIcon Trollkarien · Living Statue William Walrus
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