Core Keeper • Boss Guide
Omoroth the Sea Titan
Biome: The Sunken Sea HP: 18250 Last updated: 2026-02-28
How to summon / find
Use an 'Expert Lure' in the open waters of the Sunken Sea.
Recommended food focus
Pick one main meal plan that fits this fight, then keep one backup plan (survival or extra damage).
Boss Damage Dodge Chance.
Prep checklist
Bring these before you start—this is the fastest “stop dying” layer.
- ✓ Speeder Boat
- ✓ Octarine Armor
- ✓ Ranged Weapon
- ✓ Large open water area
Deadly attacks to dodge
If you learn only 3 things, learn these. They cause most wipes.
Whirlpool
Pulls the player towards the center.
How to dodge: Drive the boat away from the center at full speed.
Tentacle Slam
Tentacles rise and slam the water.
How to dodge: Watch for shadows and steer clear.
Core mechanics
Sea monster that summons tentacles from the water. Whirlwind attacks.
Win strategy
Fight from a boat or bridge. Prioritize dodging tentacles over raw DPS.
Best food for this boss
Pick 1 meal from the primary plan. If you’re dying, switch to the backup plan instead of forcing DPS.
Primary plan
Top pick
Larva Meat + Golden Puffungi
- • boss damage: +30%
- • rarity boost: +1 Tier
Tip: avoid overlapping buffs—pick a focused combo.
Top pick
Larva Meat + Starlight Nautilus
- • boss damage: +30%
- • rarity boost: +1 Tier
Tip: avoid overlapping buffs—pick a focused combo.
Top pick
Bomb Pepper + Larva Meat
- • move speed: +21%
- • boss damage: +30%
Tip: avoid overlapping buffs—pick a focused combo.
Top pick
Heart Berry + Larva Meat
- • max health: +25
- • health regen: +2.2 HP/s
- • boss damage: +30%
Tip: avoid overlapping buffs—pick a focused combo.
Common mistakes
Read this if you keep failing. It’s usually one of these.
- • Slow boat speed
- • Getting pulled into the whirlpool
- • Ignoring tentacles
Key drops
What you’re actually here for—and what it’s used for.
Omoroth's Soul
Permanent dodge chance buff.
Nautilus Shield
High defense shield.
Need golden ingredients faster?
Farming by hand slows down progression. Automate golden crops to power your best food buffs.
Related
FAQ
What food should I bring to Omoroth the Sea Titan?
Bring 1 main plan (damage or survival) plus 1 backup plan. Avoid overlapping buffs—buffs of the same type usually get overwritten by the last meal you eat.
Do food buffs stack in Core Keeper?
Not usually. Buffs of the same type tend to overwrite, so pick a focused combo instead of stacking many similar meals.
How do I farm ingredients faster?
Automate crops. A golden crop farm is the fastest way to remove the cooking grind for endgame buffs.