Confirm Study and the unique gameplay image before copying a dial, symbol or item route. Mobile and PC controls differ, but the core puzzle state is the same.
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The Room 4: Old Sins Study Walkthrough solution
Trace the desk, train and steam-pipe chain to open the model well and reveal the next transformed artifact.
Quick route: The train code is 25BF. Build the model well and pump, unlock the Curiosity Room, then finish the Study steam-pipe safe for the artifact.
Step-by-step walkthrough
Open the room route
Open the strange artifact to obtain the swan figurine. Place it on the matching pedestal, take the model lamp and install that lamp on the miniature street to unlock the Study.
State and inventory checks
- Match the named room and unique gameplay screenshot before copying a visual arrangement.
- Keep transformed artifacts and cross-room items until the walkthrough explicitly moves them.
- This route was cross-checked against two written walkthroughs and a complete PC playthrough.
The clip opens at 10:00 and covers the linked mechanisms used in this room phase.
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