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Arca plant landscape

An ancient facility hidden on the moon

"A facility that supported life on the moon. It had been kept active in secret."
— Quest counter description

The Arca Plant (Japanese: アルカプラント) is an area in Phantasy Star Zero.

General Data

Local Monsters

Normal Hostiles

Rare Variants


There are several missions that can be undertaken by the player at the Hunter's Guild quest counter. Certain quests grant the player rewards for beating them on specific difficulties.


Multiplayer quests

These extra quests are only available once characters have reached a certain point in the main story for the character they are using. They can only be accessed upon making a multiplayer room either locally or online.

Quest Name Difficulty Reward
Plant 51 Normal Monogrinder x3
1,500 Meseta
Hard Digrinder x3
3,000 Meseta
Super Trigrinder x3
??? Meseta
Mech Assault Normal Photon Drop x1
1,500 Meseta
Hard Photon Drop x2
3,000 Meseta
Super Photon Drop x3
??? Meseta

Side quests

Although not important to the main plot of Phantasy Star Zero, Arca Plant has several side quests that can be undertaken. These missions are optional and can be challenged with friends in local and online multiplayer.

Quest Name Difficulty Ranking Reward
2 Sets of Heroes Normal ★★★☆☆☆☆ Harisen (0% additional stats)
3,000 Meseta
Hard ★★★★★★ Goof Swatter (0% additional stats)
6,000 Meseta
Super ★★★★★★★ Goof Swatter (+30 Accuracy Adj.)
12,000 Meseta
Ana's Request Normal ★★★☆☆☆☆ Lieucon Stihl (0% additional stats)
2,000 Meseta
Hard ★★★★★★ Schwarz Stihl (0% additional stats)
4,000 Meseta
Super ★★★★★★★ Schwarz Stihl (+30 Accuracy Adj.)
8,000 Meseta

Field access

If the player decides that they want to explore the area without an apparent goal or mission, Arca Plant can be selected under "Access field." The difficulty and challenge ranking are as follows:

  • Normal Mode
  • Hard Mode
  • Super Hard Mode

Message Packs

Message packs are mysterious messages found on the field that were left behind by unknown hunters. Many of the tutorial messages and LMA reports appear to be from the same person. Messages commonly appear after clearing dead-end rooms or around special areas such as the arena.

"When they appear together, combustion, freezing, and paralysis are in the cards."
— 3-Colored Assassins
"The odd one has no missiles. A mistake? Or is there a more sinister reason?"
— Pre-production Prototype
"What's an arena for? You take on hostiles? In front of an audience?"
— What's an Arena? 3
"The traps here are laid in set patterns. Think before you commit yourself."
— Dear Rookies 17
"My curiosity, earth's gravity can't hold. The moon's guard robots I must see."
— LMA Report 24
"Korses follow Akorse's lead. Wrecking Akorse ends them, but messily so."
— LMA Report 25
"Seems there are three kinds of Finjers. Their colors indicate elements, if I were to guess."
— LMA Report 26
"Nasty are Arkzeins' homing missiles. They pose dangers to friends and foes alike."
— LMA Report 27


External Sources

Phantasy Star Zero
Major Characters Sarisa - Kai - Ogi - Dairon - Ana - Reve
Antagonists Mother Trinity - Dark Falz
Planets Coral - Arca
Locations Dairon City - Naura Bakery - Coco Hut
Gurhacia Valley - Ozette Wetlands - Rioh Snowfield
Oblivion City Paru - Makara Ruins - Arca Plant - Dark Shrine - Eternal Tower
Weapons Swords - Sabers - Spears - Daggers - Claws - Double Sabers - Slicers - Shields
Gun Blades - Handguns - Mech Guns - Rifles - Bazookas - Laser Cannons - Rods - Wands
Techniques Foie - Zonde - Barta - Gifoie - Gizonde - Gibarta - Rafoie - Razonde - Rabarta - Grants - Megid
Resta - Anti - Reverser - Shifta - Deband - Jellen - Zalure - Ryuker
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