This is the deepest stretch before 4th class content. ArionRO has an eased 150 to 200 curve -- experience requirements increase more slowly above 150, so the grind becomes shorter here than the prior bracket. Stick with it.
💡Keep running Old Glast Heim and Wolfchev's Laboratory instances with a party. These are the best supplemental EXP sources in this range and also drop gear you will need for the endgame.
Spot 1: Somatology Laboratory (Bio Lab)
Map:
Enter from Lighthalzen. The Bioethics Underground entrance is inside the Lighthalzen building at the north of the city. You need to complete a pre-quest to access the lower floors.
Monsters here:
- Cecil Damon (Cecil Damon) -- Level 141, Wind element. 81 on this map.
- Kathryne Keyron (Kathryne Keyron) -- Level 141, Ghost element. 57 on the map.
- Margaretha Sorin (Margaretha Sorin) -- Level 140, Holy element. 42 on the map.
- Howard Alt-Eisen (Howard Alt-Eisen) -- Level 142, Water element. 42 on the map.
- Eremes Guile (Eremes Guile) -- Level 140, Poison element. 42 on the map.
- Seyren Windsor (Seyren Windsor) -- Level 142, Fire element. 42 on the map.
Why it is good: Bio Lab F3 is the gold standard of leveling in this range. Every monster here gives over 15,000 base EXP and the map has 300 plus total spawns. The mix of elements means you need Neutral or your class's broadest damage type.
âš ï¸These Bio Lab monsters are very strong -- Level 140 to 142 with heavy melee and cast spells. Come with a party and proper gear. Solo is possible on some classes but slow and risky.
Class note: Rune Knights and Mechanic (Mado) can AoE multiple targets. Warlocks with Comet or Stasis handle mixed elements. Arch Bishops can buff the party and deal Holy damage.
Spot 2: Sewage Treatment Plant (Tartaros)
Map:
The Tartaros facility maps are in the Schwarzwald continent. Take the airship to Einbroch, then follow the Tartaros questline to unlock access.
Monsters here:
- Sewage Cramp (Sewage Cramp) -- Level 140, Poison element. 80 on this map.
- Sewage Waterfall (Sewage Waterfall) -- Level 141, Poison element. 60 on the map.
- Sewage Venenum (Sewage Venenum) -- Level 142, Dark element. 60 on the map.
- Elite Bellare (Elite Bellare) -- Level 143, Ghost element. 60 on the map.
Why it is good: 300 monsters across a compact map with EXP around 19,000 base each. Less mechanically demanding than Bio Lab because these are Tartaros campaign monsters rather than boss-type Bio Lab clones.
Class note: Poison-element monsters mean Arch Bishops with Holy magic shred them. Rune Knights with Dragon Breath cover the wide area. Mechanics with Madogear AoE do well too.
Spot 3: Magic Power Plant F1 (Tartaros)
Map:
Adjacent to the Sewage Treatment Plant in the Tartaros area.
Monsters here:
- Elite Bellare (Elite Bellare) -- Level 143, Ghost element. 90 on this map.
- Spell Addicted Dolor (Spell Addicted Dolor) -- Level 145, Ghost element. 80 on the map.
- Released Spell (Released Spell) -- Level 144, Ghost element. 50 on the map.
Why it is good: 250 monsters with a consistent Ghost element makes elemental planning simple -- one Holy or Ghost weapon hits everything here. Good EXP rate and slightly easier access than Bio Lab.
âš ï¸Ghost-element monsters take neutral damage from most physical hits. Ghost or Holy-element attacks are strongly recommended here. If your job cannot produce those, use Neutral skills like Asura Strike or Bowling Bash.
Spot 4: Illusion of Underwater (iz_d04_i)
Map:
iz_d04_i -- accessed via the Illusion dungeon NPC on Izlude Island.Monsters here:
- Deep Sea Sropho (Deep Sea Sropho) -- Level 147, Water element. 45 on this map.
- Deep Sea Obeaune (Deep Sea Obeaune) -- Level 149, Water element. 45 on the map.
- Deep Sea Deviace (Deep Sea Deviace) -- Level 150, Water element. 45 on the map.
- Deep Sea Marse (Deep Sea Marse) -- Level 149, Water element. 45 on the map.
- Deep Sea Merman (Deep Sea Merman) -- Level 148, Water element. 45 on the map.
Why it is good: All monsters are Water element so Lightning attacks deal double damage. 30,000 base EXP each is very high for this bracket. The Illusion dungeon system gives limited entries per day, so combine this with open-field farming.
Class note: Warlocks and Sorcerers with Thunder Storm, or Maestros and Wanderers with their bolt skills, excel here. Mechanics with Lightning Loader Madogear are very effective.
Summary
| Level range | Where to go |
|---|---|
| 130 to 150 | Somatology Laboratory F3 -- Bio Lab (party recommended) |
| 130 to 150 | Sewage Treatment Plant -- Tartaros Cramps |
| 135 to 155 | Magic Power Plant F1 -- Ghost element monsters |
| 145 to 160 | Illusion of Underwater -- Deep Sea monsters (daily cap) |
💡ArionRO's EXP curve eases above 150. The final push to 160 is faster than the 130 to 150 stretch. Keep at it, the 4th-class gate opens at endgame and the content there is built for parties willing to put in the time.