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Mystery Labs
Educational Mystery Games
Investigate. Play. Solve.

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Enter immersive mysteries where clues lead you into science, history, geography and beyond. Examine the clues, research the facts, separate what matters from what misleads — and solve the case. Solo or as a team.​ 

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All Mystery Labs cases and Evidence Files are free to explore — no membership required. Full solutions and scientific explanations are available to Cosmosapient members. We periodically unlock one case solution for free.

Currently Unlocked: CASE 002 — THE CASE OF THE IMPOSSIBLE SUSPECT. Start by exploring the case briefing and Evidence Files in the gallery below. Once you've reached your verdict, click here to reveal the free solution.

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Note: Mystery Labs cases are fictional investigations built around real scientific concepts.

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1–5 Investigators · 30–60 Minutes per Case · Ages 10 to 110 · New cases added regularly

Browse by lab. Choose a case. Start investigating.

CASE 001

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THE CASE OF THE MISSING MOON ROCK

Astronomy Lab

It survived 240,000 miles of space travel and outlasted every person who touched it on the Moon. For decades it sat locked in a laboratory vault on Earth. Then one morning, it was gone. A fragment of another world — vanished without a trace. Can you uncover what happened to the missing Moon rock?

CASE 002

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THE CASE OF THE IMPOSSIBLE SUSPECT

Physics Lab

Three minutes. That is all it took. A masked figure walked into the bank and walked out with $86,000. By the time police arrived, the robber had vanished. The cameras had seen everything. Or so investigators thought — until they realized the cameras had been lying to them all along. Can physics reveal why?

CASE 003

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THE CASE OF THE POISONED BANQUET

Biology Lab

Eighteen guests at a charity gala fell ill overnight. The chef is being blamed. The kitchen passed every inspection. The salmon looked perfect and smelled fresh. But somewhere between the ocean and the plate, something went wrong — and the science of what you cannot see may be the only thing that can prove it.

CASE 004

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THE CASE OF THE PERFECT CRIME

Biology Lab

The evidence was flawless. The DNA match was exact. The suspect had no alibi and a clear motive. Every investigator in the room believed the case was closed. Then a biologist looked closer — and discovered that the most convincing piece of evidence in the entire investigation was scientifically impossible.

CASE 005

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THE CASE OF THE POISONED RIVER

Environmental Lab

Something is killing the fish in Millbrook River. Three factories operate upstream. Each one has passed its environmental inspection. Each one denies any wrongdoing. But the river does not lie — and neither does chemistry. Can you trace the poison to its source before more damage is done?

CASE 006

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THE CASE OF THE FORGED MASTERPIECE

Chemistry Lab

A painting sold at auction for $4.2 million. The seller insists it is a lost masterpiece. The buyer insists it is a fake. One expert says authentic. Another says impossible. The canvas, the paint, and the light itself have been keeping a secret — and chemistry is about to reveal it.

CASE 007

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THE CASE OF THE FALLEN CHAMPION

Biology Lab

She crossed the finish line first and broke a world record. Twenty minutes later her medal was taken away. The test said she had cheated. She says the test is wrong. One urine sample. One failed reading. And a sports scientist who believes the numbers tell a completely different story.

CASE 008

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THE CASE OF THE ERASED COORDINATES

Geography Lab

A satellite analyst flags a perfectly geometric structure in a remote desert. No roads lead to it. No database records it. No government claims it. The structure is real — but according to every official map, it does not exist. Shadow geometry, spectral analysis, and declassified history are about to prove otherwise.

CASE 009

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THE CASE OF THE EMPTY CELL

Physics Lab

Cell 14 was locked. The bars were intact. The cameras showed nothing. The alarms were silent. By every measure Daniel Vanek was still inside Hartwell Prison. But at 6:03 AM he was gone — and the only evidence he left behind was what the forensic team almost missed entirely.

CASE 010

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THE CASE OF THE BURNING STAGE

Chemistry Lab

The Grandville Theatre stood for 143 years. It burned to the ground in four hours. The owner says wiring. The insurer says arson. The contractor says neither. Three suspects, three explanations — and a fire investigator who says the truth is buried in the ash and the chemistry of what was left behind.

CASE 011

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THE CASE OF FLIGHT 417

Physics Lab

Flight 417 touched down in the grass beside the runway. Ninety-four passengers evacuated. The pilots say the aircraft was pushed sideways by invisible forces. The instruments showed nothing unusual. The airport reported moderate winds. Someone — or something — is not telling the whole story.

CASE 012

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THE CASE OF THE MIDNIGHT COLLISION

Physics Lab

12:17 AM. A rural intersection. Two cars. No witnesses. Both drivers insist they had the right of way — and the camera missed the moment of impact. The wreckage, the tyre marks, and the data recorded in the final seconds before impact are the only witnesses left. But witnesses can be misread.

CASE 013

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THE CASE OF THE MIDNIGHT GHOST

Physics Lab

Guests at Ashworth House have been seeing the same pale figure cross the upper corridor shortly after midnight. The security camera recorded it. A door handle moved by itself. The building has been standing for 140 years without a single ghost report — until six weeks ago. Something changed. The question is what.

CASE 014

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THE CASE OF THE FALLEN FAVOURITE

Biology Lab

The favourite for the Hartwell Gold Cup was found collapsed in her stable the night before the race. A prohibited substance was in her blood. Three people had access. One had a motive worth £340,000. The science of a single blood sample is about to make the case — but the answer is not the one anyone expected.

CASE 015

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THE CASE OF THE TILTING TOWER

Physics Lab

A 22-storey tower under construction is found tilting 0.8 degrees from vertical. Construction halts. Nobody is hurt. The developer blames the engineer. The engineer blames the contractor. The contractor blames the soil survey. The question is why it is leaning — and who made the decision that caused it."

CASE 016

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THE CASE OF THE BURNING LAKE

Environmental Lab

Pale blue flames are appearing above the surface of Harwick Lake on cold autumn nights. A chemical company operated upstream for decades. The remediation records are incomplete. Residents say the lake is poisoned. An environmental scientist says the answer is older — and stranger — than anyone expected.

CASE 017

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THE CASE OF THE SANTA CATARINA

Environmental Lab

A fishing net snags on something at 140 feet off the New Jersey coast. Divers find a shipwreck — cargo intact, origin unknown, no record of a vessel lost at this location. Ocean currents, wood chemistry, cargo analysis, and 300-year-old shipping records are about to tell the story of a ship that never arrived.

CASE 018

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THE CASE OF DYATLOV PASS

Physics Lab

Nine experienced hikers camped on a mountain slope in February 1959. By morning they were dead — scattered across the snow in their underwear, their tent ripped open from the inside. Soviet investigators closed the case citing an unknown compelling force. Sixty-five years later the science may have an answer.

CASE 019

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THE CASE OF THE SLEEPING VILLAGE

Chemistry Lab

At dawn, a lakeside village is eerily silent. Residents lie unconscious, livestock have collapsed, and streets are deserted. Yet families on the hills remain unharmed. With no signs of violence, investigators uncover a strange pattern. What invisible force swept through the village overnight?

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