How to Unlock Tidefall in Fisch
The Tidefall update is one of the biggest additions Fisch has seen in a long time. It introduces a massive deep-sea map with multiple bestiaries, new hunts, new spears, and several rods—plus a secret progression path that ends in Tidefall Castle and even a late-game upgrade tied to the Trident Rod.
This guide explains how to enter Tidefall, how to complete the Rescue (Lost) Diver quest, what gear you need to survive the pressure mechanic, and the exact steps to unlock the castle gate. Everything is written as a practical walkthrough, so you can follow it in-game without getting lost.
What You Need Before Entering Tidefall
Tidefall is not a regular island—it’s a dive point where you go underwater and navigate through narrow crevices to reach the map.
To survive the dive reliably, prepare these items:
- Advanced Diving Gear (strongly recommended)
- Super Flippers (or better movement tools)
- Tidebreaker (helps you move fast before pressure kills you)
- Optional: a Water Bubble if you already unlocked it (great for pressure)
Pressure Mechanic Explained
When you dive toward Tidefall, you’ll see a purple pressure meter near your oxygen. It drains quickly—if it hits zero, you die. The deeper you go, the faster it becomes a problem, so speed + protection matters.
Tidefall Location – Where to Dive
After the update, the Tidefall entry point is between Mush Grove and Snow Cap, slightly closer toward the Ancient Isles direction.
You’ll know you found the correct place because you’ll see:
- A cluster of boats on the surface
- A red boat with diver NPCs nearby
- The area is clearly marked “Tidefall” in most servers
Tip: If you use GPS, Tidefall is a fixed point, not an island. (Some guides list coordinates—if your server layout differs, just follow the boats.)
Step 1: Start the Rescue (Lost) Diver Quest
Before fully exploring Tidefall, you should complete the Lost Diver quest because it unlocks access to the Abyssal Tonic, which makes repeated dives easier.
How to start it
- Go to the red boat near Tidefall
- Talk to the left Deep Diver NPC
- Choose the option: “I’ll look for him”
- You’ll see the quest appear: Lost Diver
Note: Some players reported a turn-in bug right after launch. Even if you can’t “turn in” instantly, you can still complete the steps and claim later once it’s fixed.
Step 2: Find the Lost Diver Underwater
Now dive down from the Tidefall boats.
Path clue:
You’ll swim past two crossed bridges and spot a sunken submarine. Near it (slightly to the side), you’ll find the missing diver NPC.
How to complete the rescue safely
- Grab the diver quickly (pressure drains fast)
- Use Tidebreaker to swim upward faster
- Once you reach the area around the crossed bridges, your pressure meter begins restoring
Return to the surface and deliver the diver to the quest NPC.
Reward
You unlock Abyssal Tonic, and you can also buy more later from the Tidefall vendor.
What is Abyssal Tonic Used For?
The Abyssal Tonic basically solves the pressure problem. Once active, it allows you to travel in and out of the Tidefall entry route with far less stress.
If you plan to farm Tidefall hunts, bestiary, or materials—this tonic is one of the best quality-of-life items in the update.
Step 3: Enter Tidefall (The Actual Map)
After completing the rescue:
- Dive again past the submarine
- Find the main hole near it
- Go down into a smaller opening
- A cutscene triggers and you’ll enter Tidefall Hub
Tidefall is built like a mini-Atlantis: it has a central area plus multiple corridors leading to zones with their own bestiary and hunts.
Tidefall Zones Overview (What’s Inside)
Tidefall Hub
This is the main area with:
- Vendor stall (items + unlockables)
- Hunt events
- Access corridors to other sections
- Obelisks later used to unlock the castle
Important vendor items you’ll see:
- Tide Mourner Head (used for crafting)
- Abyssal Tonic (helps with pressure)
- Fallen Rod (buyable, used for a quest later)
- Withered Spear (requires Tidefall bestiary completion)
- Dripstone Collapse Totem (very expensive, required for essence farming)
Essence Farming – Dripstone Collapse Totem
To craft higher-tier items, you’ll need essences. These are obtained by breaking dripstones spawned by:
- The Dripstone Collapse Totem
- Natural world events
How it works:
- A dripstone event spawns (check Events tab)
- Find dripstones (they blend into the environment)
- Use a pickaxe to break them
- You may get rock or essence (random)
Warning: Falling rocks can kill you if a dripstone drops directly above you.
Step-by-Step: How to Unlock Tidefall Castle
This is the big “secret progression” part.
Around Tidefall hub, you’ll find multiple obelisks. Each requires a specific offering:
You need:
- Gold Wraith (from Crowned Ruins hunt)
- Omni Thou (from Sunken Reeluary hunt)
- Plesiosaur (from Collapsed Ruins hunt)
- Reef Titan (from Coral Bastion hunt)
- Sparkling Dripstone (a dripstone item with sparkling upgrade)
Offerings
- Offer each hunt fish to its matching obelisk
- Offer the Sparkling Dripstone to the final obelisk near the entrance
When all offerings are complete, you’ll hear an opening sound, and Tidefall Castle becomes accessible.
Best Tips to Progress Faster in Tidefall
- Do the Rescue Diver quest first for easier diving
- Watch the Events tab for hunts and dripstone spawns
- Use Tidebreaker + Advanced Gear for safer movement
- Farm hunts in each zone early so obelisks don’t slow you later
- Save money—some items (like totems) are extremely expensive
FAQ – Tidefall in Fisch (January 2026)
Where is Tidefall located in Fisch?
Tidefall is a dive point marked by a cluster of boats between Mush Grove and Snow Cap, closer toward the Ancient Isles direction. You reach it by diving beneath the boats and entering underwater crevices.
Do I need a submarine to unlock Tidefall?
No. A submarine can help you reach the first part, but you must swim through narrow openings to fully enter Tidefall.
How do I complete the Rescue (Lost) Diver quest?
Start the quest from the Deep Diver NPC on the red boat near Tidefall, then dive down near the capsized submarine to find the missing diver and bring him back to the surface.
What does Abyssal Tonic do?
It helps you survive the underwater pressure mechanic, making travel in and out of Tidefall much safer and easier.
How do I unlock Tidefall Castle?
You must offer specific hunt fish to the Tidefall obelisks (Gold Wraith, Omni Thou, Plesiosaur, Reef Titan) plus a Sparkling Dripstone to open the castle gate.
