CH 1 · BOX 1Boxes Lost Fragments Chapter 1 Box 1: Compass and Zodiac Cube
Open the layered cube, build the compass, and use the zodiac door to claim the bear fragment.
Open walkthrough →Big Loop Studios game · complete five-chapter route
Boxes: Lost Fragments
Walkthrough & Solutions
Open 20 intricate mechanical boxes across five chapters, then place each chapter's four fragments into a larger mansion mechanism to reach the next wing.
- 25 distinct gameplay frames
- All 20 puzzle boxes
- Five mansion finales
- Exact video timestamps
Each chapter has Box 1–4, followed by its mansion Hall Puzzle.
25 verified units20 boxes plus five hall puzzles
Mechanical puzzle solutions
Boxes Lost Fragments all chapters walkthrough
Match the chapter, box label and unique gameplay image, then reveal the mechanism chain one phase at a time.
CH 1 · BOX 1
CH 1 · BOX 2Boxes Lost Fragments Chapter 1 Box 2: Clock Tower and Hourglass
Collect three handles, rebuild the lower mechanism, and read the clock clues to release the hourglass.
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CH 1 · BOX 3Boxes Lost Fragments Chapter 1 Box 3: Flower Box and Mechanical Ladybird
Open the flower mechanisms and guide the mechanical ladybird through the miniature course to retrieve the owl.
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CH 1 · BOX 4Boxes Lost Fragments Chapter 1 Box 4: Nautical Chest and Model Ship
Turn the sea-monster chest into a working ship display and solve the cabin board for the prism.
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CH 1 · HALL PUZZLEBoxes Lost Fragments Chapter 1 Hall Puzzle: Initium Fragment Hall
Place the bear, hourglass, owl and prism in the mansion hall to reveal the Chapter 2 token.
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CH 2 · BOX 1Boxes Lost Fragments Chapter 2 Box 1: Skull Laboratory and Electric Key
Repair the optical mechanism and route power through the laboratory box to create the electric key.
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CH 2 · BOX 2Boxes Lost Fragments Chapter 2 Box 2: Crystal Globe and Mechanical Sphere
Power the globe box, solve its colour and picture discs, and recover the mechanical sphere.
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CH 2 · BOX 3Boxes Lost Fragments Chapter 2 Box 3: Steam Cart and Mechanical Console
Restore the steam cart, set its pipes and gauges, and catch the passing gears to obtain the console.
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CH 2 · BOX 4Boxes Lost Fragments Chapter 2 Box 4: Plasma Core and Power Source
Complete the rotating panels, charge the plasma mechanism, and open the portal for the power source.
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CH 2 · HALL PUZZLEBoxes Lost Fragments Chapter 2 Hall Puzzle: Nexus Fragment Hall
Install the sphere, electric key, console and power source to open the sarcophagus route.
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CH 3 · BOX 1Boxes Lost Fragments Chapter 3 Box 1: Suitcase Safe and Piggy Bank
Open the suitcase safe, decode its moving machine parts, and crush the piggy bank for the intricate mechanism.
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CH 3 · BOX 2Boxes Lost Fragments Chapter 3 Box 2: Radio Melody and Piano Key
Tune the radio, assemble the musical mechanisms, and reproduce the melody symbols to release the piano key.
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CH 3 · BOX 3Boxes Lost Fragments Chapter 3 Box 3: Camera Lab and Film Reel
Develop the camera evidence, use code 4218, and solve the letter wheel to claim the film reel.
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CH 3 · BOX 4Boxes Lost Fragments Chapter 3 Box 4: Card Cage and Remote Control
Clear the card tests, free the caged jester, and power the spotlight mechanism for the remote.
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CH 3 · HALL PUZZLEBoxes Lost Fragments Chapter 3 Hall Puzzle: Cognito Fragment Hall
Use the piano key, film reel, mechanism and remote to project the fireplace pattern and reach Chapter 4.
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CH 4 · BOX 1Boxes Lost Fragments Chapter 4 Box 1: Arena and Minotaur
Open the ancient arena box and use the crossbow to defeat the moving minotaur for the wheeled horse.
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CH 4 · BOX 2Boxes Lost Fragments Chapter 4 Box 2: Locomotive House and Model Train
Collect both badges, open the station house, and solve the locomotive crane for the model.
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CH 4 · BOX 3Boxes 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.
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CH 4 · BOX 4Boxes Lost Fragments Chapter 4 Box 4: Dragon Palace and Golden Egg
Open the palace turrets, solve the shield pattern, and ring the gong to hatch the dragon.
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CH 4 · HALL PUZZLEBoxes Lost Fragments Chapter 4 Hall Puzzle: Fractus Model Table
Carry the wheeled horse through the train, dragon and tower model route to unlock Chapter 5.
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CH 5 · BOX 1Boxes Lost Fragments Chapter 5 Box 1: Frozen Dragon and Cryptex
Open the horn gate, arm the four statues, and restore the frozen picture to obtain the cryptex.
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CH 5 · BOX 2Boxes Lost Fragments Chapter 5 Box 2: Aztec Crystal Skull and Ancient Key
Solve the crystal rings and Aztec mechanisms to complete the pipeline and release the ancient key.
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CH 5 · BOX 3Boxes Lost Fragments Chapter 5 Box 3: Sphinx and DNA Container
Open the tomb's layered picture mechanisms and place the crystal on the flower to recover the DNA container.
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CH 5 · BOX 4Boxes Lost Fragments Chapter 5 Box 4: Portal Tree and Energy Source
Read the cocoon numbers, pass through the tree portal, and open the slab for the energy source.
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CH 5 · HALL PUZZLEBoxes Lost Fragments Chapter 5 Hall Puzzle: Aurora Finale
Use the cryptex, ancient key, DNA container and energy source to open the last chamber and awaken Aurora.
Open walkthrough →Complete crawlable index for all 25 guide units
Five chapters, stable units
How the 25 guides are numbered
The game has 20 original puzzle boxes: four inside each of Initium, Nexus, Cognito, Fractus and Aurora. Level Clue adds each chapter's larger mansion assembly as a fifth guide unit, because those spatial puzzles have their own search intent and item sequence.
How these solutions were checked
Every unit was mapped to its named chapter section in two complete written walkthroughs, then checked against the matching segment in Gameskeys' full-game video. Each card uses a separately captured frame from inside that exact segment; no AI-generated game art or repeated generic cover is used.