- See also: The Forbidden Land, The Baldesion Arsenal and Replica Eurekan Weapons
Eurekan Weapons are the level 70 Relic Weapons for Stormblood. First released in patch 4.25, players do not need to complete any Zodiac Weapons or Anima Weapons to unlock the Eurekan Weapons. Unlike with the Anima Weapon questline players who have obtained the Zodiac Zeta Weapons or the Lux Anima Weapons will not have an advantage with any step of the Eurekan Weapons. However, to start the Eurekan Weapon quest chain, players must have cleared their job's Level 70 job quest, since the Eurekan Weapons are upgraded from the weapon rewarded by the job quest. As their name implies, all the upgrading activity for these Stormblood relics is done inside The Forbidden Land, Eureka.
Alongside the Eurekan Weapons players can also obtain the Eurekan Gear. Replicas of completed Eurekan Weapons can be purchased from Staelhundr once players have finished the Anemos Weapons phase.
Relic weapons from past expansions are not intended for combat use, but for cosmetic, achievements, and collection purposes. Weapons of similar power, for the same player level, that are much more easily obtainable and are intended for character progression can be bought with 
Allagan Tomestones of Poetics.
Lore
“
Deep in the Glass Ocean, the great expanse of the Far East, lies an island recorded on no navigational charts. An island that seemingly appeared one day─an island that should not be. Recognizing its potential as a trading post, the brave and ambitious ventured forth to explore and claim it, only to discover an untamed land teeming with strange, monstrous beasts...
— FFXIV Patch 4.2 Special Site
Antiquated Weapons
Antiquated weapons are acquired by completing the Stormblood job quest line for your given job, up through the level 70 quest. They serve as the starting tier relic weapons for Stormblood, and are upgraded in the Eureka zones. If you misplaced or discarded your Antiquated weapon, you can purchase a replacement for 
1,000 from the Calamity Salvager in any of the three starting cities.
Hint: If you can't find your Antiquated weapon and are not sure if you discarded it, you can type /isearch Antiquated to search for any Antiquated weapons across all of your inventory containers (Including bags, chocobo saddlebag, armoury, retainers, etc.).
| Antiquated Weapons (iLvl 290)
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| Weapon Tier |
iLvl |
Items needed
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| Antiquated |
290 |
Acquired from level 70 job quest
If lost, replacement available at Calamity Salvager for 1,000
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Anemos Weapons
- See also: Eureka Anemos
To unlock the quest chain, players need to be level 70 and complete the Main Scenario Quest 
Stormblood. Additionally they need to complete the quest 
And We Shall Call it Eureka.
| Item Quick Reference
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Total for every weapon
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 x1300
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 x3
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| x19500
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x45
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| Anemos Weapons (iLvl 355)
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How to acquire items to upgrade
Protean Crystals: Kill Notorious Monsters in Eureka Anemos to earn 
Anemos Crystals, then turn them in to Gerolt to exchange for 3 to 5 Protean Crystals for each Anemos Crystal turned in. Protean crystals will also drop randomly from trash mobs of equal or higher elemental level to your own. In Eureka, a notorious monster is essentially a Kill Boss FATE.
Pazuzu's Feather: 3 feathers will drop each time you complete the FATE 
Wail in the Willows with gold medal credit in Eureka Anemos, which requires you to kill the notorious monster Pazuzu. Feathers can also be purchased from the Expedition Birdwatcher for 300 Protean Crystals each.
Elemental Weapons
- See also: Eureka Pagos
An upgrade to Anemos weapons. Weapons will have a new model.
| Item Quick Reference
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Total for every weapon
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| Elemental Weapons (iLvl 370)
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How to acquire items to upgrade
Frosted Protean Crystal: Collect vitiated aether by killing Notorious Monsters and level-appropriate trash mobs in Eureka Pagos, then turn it in at the Crystal Forge in Eureka Pagos (6.0, 21.5). You will receive one Frosted Protean Crystal for each full charge of vitiated aether.
- You must have acquired the vitiated aether kettle from Gerolt by completing the level 25 quest in Eureka Pagos before you can receive vitiated aether.
- The kettle can hold a maximum of 9 charges of vitiated aether. If it starts to get full, be sure to turn it in so none gets wasted!
Pagos Crystal: These are acquired by killing Notorious Monsters in Eureka Pagos. The higher level the Notorious Monster, the more crystals it will drop.
Louhi's Ice: 2 chunks will drop each time you complete the FATE Louhi on Ice with gold medal credit in Eureka Pagos, which requires you to kill the notorious monster Louhi. Louhi's ice can also be purchased from the Expedition Birdwatcher for 50 Pagos Crystals each.
Pyros Weapons
- See also: Eureka Pyros
An upgrade to Elemental weapons. Weapons will have a white-blue flame particle effect.
| Item Quick Reference
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Total for every weapon
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| Weapon Tier |
iLvl |
Items needed
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| Elemental +1 |
375 |
 x150, must have unlocked 10  Logos Actions
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| Elemental +2 |
380 |
x200, must have unlocked 20 Logos Actions
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| Pyros |
385 |
x300,  x5, must have unlocked 30 Logos Actions
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How to acquire items to upgrade
Eureka Weapons
- See also: Eureka Hydatos
An upgrade to Hydatos weapons. Weapons will have a new model and swirling particle effects. This step grants the weapon's final appearance and maxes out its stats, excluding elemental stats that are effective in Eureka zones only. If you only care about the earning the glamour and don't care about the elemental stats, you can stop after completing this step.
| Item Quick Reference
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Total for every weapon
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 x350
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 x5
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| x5250
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x75
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| Eureka Weapons (iLvl 405)
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How to acquire items to upgrade
Hydatos Crystal: These are acquired by killing Notorious Monsters in Eureka Hydatos. The higher level the Notorious Monster, the more crystals it will drop.
Crystalline Scale: 3 scales will drop each time you complete the FATE Crystalline Provenance with gold medal credit in Eureka Hydatos, which requires you to kill the notorious monster Provenance Watcher.
Physeos Weapons
- See also: The Baldesion Arsenal
An upgrade to Eureka weapons. Stats and appearances are identical to Eureka weapons, except that they have extra Elemental Bonus stats that increase the weapons' power in Eureka zones only (including 
The Baldesion Arsenal).
| Item Quick Reference
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Total for every weapon
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 x100
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| x1500
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| Physeos Weapons (iLvl 405)
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| Weapon Tier |
iLvl |
Items needed
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| Physeos |
405 |
 x100
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How to acquire items to upgrade
Eureka Fragment: These are exclusively acquired inside 
The Baldesion Arsenal. A complete clear yields 28 fragments total, with each boss defeated dropping a portion of that total amount.
Additional Stats
Eurekan Weapons at the Pyros, Eureka, or Physeos stage can have their stats upgraded at the Mnemeworks Station, near Gerolt in Pyros. These stats are rolled randomly, at the cost of 2 
Smoldering Protean Crystals. Each weapon starts with one "line" of stats that it can randomly roll, and a total of 5 can be unlocked by repeatedly using the Mnemeworks Station. Each time the station is used, all unlocked lines reroll, and if 5 lines are not unlocked, an additional line may be unlocked and rolled as well. The reroll can be canceled, leaving the weapon with its stats unmodified, but the 2 Smoldering Protean Crystals spent will not be refunded, and if the reroll unlocked an additional line the weapon will not retain it.
- Each line can give up to 84 of a stat.
- Paladin swords and shields are limited to 60, and 24 respectively.
- Any stats bonuses totaling above 114 will be synced down to 114 inside of Eureka zones.
How to acquire items to upgrade
- Smoldering Protean Crystal: Collect vitiated aether by killing Notorious Monsters and level-appropriate trash mobs in Eureka Pyros, then turn it in at the Mark II Crystal Forge in Eureka Pyros (22.3, 6.0). You will receive one Smoldering Protean Crystal for each full charge of vitiated aether.
- You must have acquired a Pyros Weapon before you can receive vitiated aether.
- The kettle can hold a maximum of 9 charges of vitiated aether. If it starts to get full, be sure to turn it in so none gets wasted!
Eureka Weapon Types
| Weapon Tier |
iLvl |
PLD |
WAR |
DRK |
WHM |
SCH |
AST |
MNK |
DRG |
NIN |
SAM |
BRD |
MCH |
BLM |
SMN |
RDM
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Antiquated
Starter |
290 |
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| Starter |
335 |
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| Starter +1 |
340 |
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| Starter +2 |
345 |
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| Anemos |
355 |
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| Pagos |
360 |
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| Pagos +1 |
365 |
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| Elemental |
370 |
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| Elemental +1 |
375 |
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| Elemental +2 |
380 |
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| Pyros |
385 |
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| Hydatos |
390 |
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| Hydatos +1 |
395 |
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| Base Eureka |
400 |
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| Eureka |
405 |
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| Physeos |
405 |
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Video presentation of all Eurekan weapons
Achievements
Main article: Eureka Weapons Achievements
Eurekan Weapons are associated with several achievements.
x100
x3
x5
x500
x5
Pyros Crystal: These are acquired by killing Notorious Monsters in Eureka Pyros. The higher level the Notorious Monster, the more crystals it will drop.
Penthesilea's Flame: 3 chunks will drop each time you complete the FATE 
x50
x5