Boxes: Lost Fragments · Fractus · Guide 18

Boxes Lost Fragments Chapter 4 Box 3: Desert Casket and Tower Model

Light the desert mechanism, pass the red-blue timing test, and transform it into the tower model.

Boxes Lost Fragments Chapter 4 Box 3 Desert Casket and Tower Model real mechanical puzzle gameplay — Real gameplay frame captured from Gameskeys' complete walkthrough. Game artwork © Big Loop Studios / Snapbreak Games.View timed source

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This is guide unit 18: Chapter 4 Fractus, Box 3. Confirm the screenshot before copying a symbol, dial or slider state.

Solution cross-checkedBoxes Lost Fragments Chapter 4 Box 3 · verified 2026-09-30

Boxes Lost Fragments Chapter 4 Box 3 solution

Light the desert mechanism, pass the red-blue timing test, and transform it into the tower model.

Quick route: Follow the four mechanism phases below in order; the exact video segment begins at 87:50.

Step-by-step walkthrough

01

Open the first layer

Take the knife and oil lamp, release the knife key, unlock the lamp, and remove the lit candle.

02

03

04

State and version notes

Confirm the chapter, unit label and screenshot together before copying a visual state.
Inventory objects often unfold or hide a second switch; inspect every side before assuming an item is unusable.
This route was checked against two complete written walkthroughs and the matching full-game video segment.

Checked against the matching Just Adventure section, the complete Walkthrough King route, and the full-game video at this unit's timestamp.

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