Solving The Sinking City 2 church area obelisk puzzle requires finding a trident behind a locked door and correctly arranging four god symbols on a nearby obelisk. While the notes found throughout the area can feel unclear, the process can be completed entirely the first time you discover the location on PC.

Steps at a Glance

  1. Retrieve the Star key and unlock the Star door in the Church to find the Trident.
  2. Place the Trident on the Obelisk outside.
  3. Rotate the Obelisk symbols using the order of the four gods listed in the notes.
  4. Survive the lightning and enemy spawns, then reclaim the Trident.
  5. Return the Trident to its starting room to access the alternate dimension, take the altar dagger, and trigger the basement boss fight.

Step 1: Find the Trident and Obelisk

You'll locate the Trident in the Church behind a Star-locked door, provided you already have the Star key. Once collected, take the Trident outside and place it directly on the Obelisk to begin the sequence.

Step 2: Match the Gods and Symbols

To configure the Obelisk correctly, cross-reference the "Call Upon Believers" note listing four gods (found on the altar at the church entrance) with the "First Vision" note listing their matching symbols (found in the Star-locked crypt in the graveyard).

The phrase "from the depth to the heights" in the notes dictates that the order runs from top to bottom:

  • 1. Yig: Serpent Form
  • 2. Tsog-Nar: Crooked Cross
  • 3. Gyrh: Spearhead
  • 4. Cthylla: Splayed Womb

Step 3: Collect the Trident and Defeat the Boss

Once the symbols align properly, lightning strikes the Trident repeatedly at regular intervals. Clear the area and kite incoming enemies into the electricity. Watch the Trident tips—when all three light up, step in quickly to grab the weapon.

Bring the Trident back and place it in its original room. Leaving this small room pulls you into another dimension where the Church is populated by statues. Approach the altar, grab the dagger from the statue directly in front of it, and slot the dagger into the altar. This lowers you into a basement area for a brief boss fight, rewarding you with Dream Essence upgrade points on the altar as you depart.