SOLVE THE
PERFECT
MURDER
Investigate crime scenes, analyze forensic evidence, expose the lies, and find the killer.
1987
1994
2002
2023
"She never missed a shift," says the owner. Police found her apron folded neatly on the counter.
MOTEL
104
Boyfriend's alibi checks out?
THE
BLUE
SEDAN
Subject was observed entering REDACTED at approximately 2100 hours.
Witness states REDACTED was driving a vehicle matching the description.
What about the motel clerk?
Another Disappearance on Route 66
Local law enforcement is urging caution after a second vehicle was found abandoned near mile marker 112.
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Intercept Files
Gain access to the victim's cloud storage, chat logs, and medical records. Investigate every clue like a real crime scene investigation.
Analyze Data
Cross-reference timestamps, break alibis, and decrypt files. Solve puzzles that rival the best online escape rooms.
Issue Indictment
Submit your final verdict. Name the killer, cite the evidence, and close the cold case. No guessing — only deduction.
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SEES EVERYTHING
DetectiveOS is a browser-based detective simulator built on real digital forensics. Investigate cold cases, solve murder mysteries, and crack crime puzzles — no downloads, no installs, just you and the evidence.
Raw Evidence
Crime scene photos, server logs, autopsy reports. Real evidence, real detective work.
Terminal Access
Hack into systems, recover deleted files, and trace digital footprints like a cyber detective.
Final Verdict
Issue a formal indictment. Solve the whodunit and close the case for good.
01:42:12 Sys
01:42:15 Con
01:42:48 P
> URGENT: MESSAGE DECODED
"Listen, if Marcus finds out about the diversion of funds, we are all finished. I need you to take care of it tonight. Use the..."
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Last Train to Meridian
Victor Hale boarded the 11:40 PM express carrying a locked briefcase. He never reached his destination. Found dead in his sealed sleeper cabin — briefcase emptied, laptop wiped, door bolted from inside. His own bodyguard says he never heard a thing.
Room 17
Rowan Key was found dead in Room 17 — the suite guests request by name. Smart lock logged zero entries after 10:41 PM. Privacy Mode enabled from inside. Find out what happened before checkout.
Your Tools. Your Case. Your Call.
Every case drops you into a full forensic operating system. Hack terminals, decode ciphers, track crypto, interrogate suspects, and solve the mystery. More depth than any online escape room.
Hack Into Remote Systems
Scan networks, connect to suspect devices, and download hidden files directly into your evidence locker.
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Elite detectives need elite tools. Upgrade your access level to view restricted materials, collaborate with other agents, and access the global suspect database.
View Clearance Tiers████████
Latest reviews from the community
WARNING: The following intercepts contain unredacted case details and potential solution spoilers.
Proceed with caution.
"ok the motel case genuinely got me. I was so sure it was the boyfriend until I ran the IP trace on the front desk PC and everything clicked. the keycard logs in the terminal were right there the whole time and I missed it for like an hour
"Cool concept but I got completely stuck on the cargo manifests. Spent like 2 hours not knowing what to do with the gate logs. Eventually figured out HexScope but by then I was already frustrated. Needs some kind of hint system imo
"the steganography on the mirror photo is INSANE. had to invert the image and adjust contrast to catch the badge reflection. its 2am on a tuesday and im enhancing pixel reflections in a hotel mirror like a lunatic. 10/10
"Interface looks incredible but theres a learning curve for sure. took me a while to figure out I had to drag evidence INTO the tools. my partner tried it and gave up after 20 min. once it clicks tho its really satisfying
"I listen to way too many true crime podcasts and this scratches the exact same itch but you actually DO the investigating. cleaning up that corrupted audio in SignalPro and hearing the actual conversation gave me chills
"I work in cybersec so the terminal commands are obviously simplified but honestly the logic holds up. recovering the deleted gate event through the hex dump was a nice touch. the DEADBEEF marker made me laugh lol
"finally a game that doesnt hold your hand. no quest markers no glowing objects. just you and a pile of evidence. cracking the ROSE17 passphrase and unlocking the NVR exports was genuinely thrilling. the hotel case is a masterpiece
"Decent puzzles overall. The base64 decryption was straightforward but figuring out what to do with the frequency isolation on the voicemail took me a while. Had to look up hints twice. Good foundation, curious where this goes
"binged every available case in one weekend. the writing is actually good?? like not 'good for a game' good but actually well written. the interrogation rooms are so tense. caught the motel clerk lying about the door system and felt like a genius
"Some of the tool solutions feel like you need to read the devs mind. I like hard puzzles but theres a difference between clever and just obscure. The suspect board is cool tho, tracking means motive opportunity felt very procedural
"Im a forensic accountant IRL and the financial ledger tool made me laugh out loud. Its simplified obviously but tracing the shell company payments back to the suspect follows real logic. this game was made for detail oriented people
"the NetTrace tool is so satisfying. plugged in the IP from the maintenance closet and it traced straight to the contractor laptop. that moment where you realize who had master access the whole time... yeah. goosebumps