Skip to main content
CouchCoopDesk

Chapter 13 of 20

Trine 5: A Clockwork Conspiracy: The Astral Observatory walkthrough

The academy observatory, all light beams and star medallions, guarded by Wilhelmaton.

  • About 25–40 min in the videos
  • 2 parts · 11 steps
  • 1 boss

Compiled from 2 playthrough videos and 10 guides · checked Oct 19, 2026

0 of 2 done
Video: BeardBear on YouTube. Loads from youtube-nocookie.com only when you press play.

What each player can do here

P1 · Player 1
  • In this guide's split Player 1 plays Amadeus: he conjures boxes, planks and balls, levitates objects, and in this game can also reverse gravity.
P2 · Players 2–4
  • Player 2 swaps between Pontius (shield that deflects water and shots, a charge, and later a throwing sword) and Zoya (rope arrows for swinging and rope bridges, and arrows that later ricochet).

If your skill levels differ: The campaign runs for 1 to 4 players locally or online, and puzzle difficulty adapts to the number of players.Our suggestionPut the more experienced player on Amadeus, whose objects solve most rooms. How to split the roles

Through the observatory

Part 1 of 2. Light the medallions and work the orrery.

  1. Players 2–4Bounce the light onto the star medallion over the door to open it.
  2. BothWith the deflector lighting one medallion, the clone and Pontius light the rest.
  3. BothFor five medallions, split the beam between the device, the clone and Pontius.
  4. Player 1Place the cog in the first slot so the mechanism starts to turn.
  5. BothLight every medallion with a clone helping to reflect the beam.
  6. BothPull the lever to start the orrery's orbs and reveal the red beam.
  7. BothUse a clone to light the horizontal slab so it stays put.
  8. Players 2–4When the panel reaches the bottom, swap to Zoya and lock it with an ice arrow.
  9. Players 2–4Bounce the light up into the receiver to open the gate.
  10. Player 1Pull the lever to swing out the wooden beams, set a plank on them and climb.

Where people tend to fall

  • A floor button fires a laser from the ceiling; jump over it or cover yourself with Pontius's shield.

Wilhelmaton

Part 2 of 2. Short-circuit the guardian with its own electricity.

  1. BothEvery phase is about bringing the electrified machine down to the boss.

Boss

WilhelmatonThe observatory's mechanical guardian

  1. Phase 1: Press the button to bring the electrified piece down over the boss, then use it on him.
  2. Phase 2: Put a box on each of the two switches at the top to bring the machine back.
  3. Phase 3: Ice rocks shield the machine; melt through them with fire arrows.
  4. Phase 4: Platforms appear: climb them fast and wreck each of his hands.
Sources (12)

Steps compiled from 2 playthrough videos and 10 text guides, checked Oct 19, 2026, and written in our own words. We did not play the game for this guide. A step marked “single source” rests on one guide so far.