Fisch Tidefall Guide: Obelisk Puzzles Complete Area Update Tips

Strange symbols, glowing stones, and a secret that guards the gate to Tidefall Castle-this Obelisk Puzzle in Roblox Fisch has stumped many players. Here’s how to crack its code and open the path hidden beneath the waves.

How to Complete Obelisk Puzzle in Fisch

To complete the Obelisk Puzzle in Fisch, locate all four obelisks scattered around the Tidefall area and interact with each one to record its rune symbol. Pay attention to the sequence of the symbols, as the order determines how you must activate them later. After identifying all runes, return to the central obelisk near the Tidefall Castle entrance and activate the runes in the correct order to trigger the final mechanism. If the sequence is entered correctly, the barrier around the castle will dissipate, granting access to the new area.

Every Obelisk requires the hunt fishes and a specific catch from the Tidefall area in Fisch. Once you turn them in, the Obelisk puzzle will be solved. Here is the full table to help you learn how to solve the puzzle:

How to Open Tidefall Castle in Fisch

After you have solved every Obelisk in Tidefall and turned in the required hunt exotics, head toward the lush, overgrown section near the main Tidefall area and glide across the water toward the distant ruins. Follow the path until you reach the large stone gate embedded in the castle wall; this gate opens automatically once the Obelisk puzzle is complete, granting access to the Tidefall Castle courtyard. Inside, you can fish in the central water basin for the Plesiosaur during its hunt events, which you will need later for the Requiem Rod.​

After completing the puzzle, you can walk toward the lush green covered area and glide over the water. This is where you will find the Tidefall Castle in Fisch. By completing the Obelisk puzzle, you will unlock the gate locked in the castle. Once you open the gate, you can catch the Plesiosaur. However, it is also available during the hunt. Well, make sure you keep spamming the totem, as the Plesiosaur is a divine secret rarity, so spawning it will take longer in Fisch.

Show obelisk coordinates for the Sanctum

The Sanctum in Roblox’s Fisch features several Obelisks that players must rotate to unlock the Eidolon Rod purchase, typically as part of a set of 15 total across areas like Cultist Lair, Hall of Whispers, Passage of Oaths, and the Sanctum itself.​

Sanctum Obelisk Coordinates

These coordinates (X, Y, Z) are used with the in-game GPS item, available from shops like Moosewood Pond. Key Sanctum-area ones include:​

Finding Tips

One Obelisk sits right outside the elevator into the Sanctum hallway. Others cluster around the central fishing area, behind rocks, near stairs, and next to NPCs-circle the room systematically.​​

Completion Notes

Rotating all 15 Obelisks (including these) opens a trapdoor to full Sanctum access for the Eidolon Rod vendor. Sources note slight variations (e.g., 5-6 in Sanctum), so check nearby zones if needed.​​

Exact coordinates of each Sanctum obelisk

The Sanctum in Fisch’s Cultist Lair contains six Obelisks, each with precise GPS coordinates for easy in-game navigation using the GPS tool.​

Exact Sanctum Obelisk Coordinates

Activation Steps

Approach each knee-high stone statue and press E to rotate it once; it turns visibly in one direction.​
Completing these with the other nine Obelisks across Cultist Lair areas opens the Sanctum trapdoor for Eidolon Rod access.​