The Signal
Free
One mystery each month. Enough evidence to discover if this is your kind of problem.
Play The First FileCase file 001 · Curiosity by design
Don't open this unless you need to know.
The internet's mystery machine sends you strange evidence, impossible questions, and just enough time to make your case.
One free mystery every month · Leave no clue behind
Classified
Incoming transmission · 03:17 AM
The letter is dated tomorrow.
You have 48 hours to figure out why it exists.
Timer starts when you open it
A brighter internet
Mysteries. Puzzles. Challenges.
Every case is built like an event: a little unsettling, deeply playable, and worth bringing up at dinner.
No invented reviews. No filler. Just original digital mysteries for people who can't stop looking.
How the machine works
Curiosity changes everything.
A stranger's phone. A locked room. A $10 million heist. The format changes; the need to know doesn't.
- 01
Receive the unknown
A new case appears without a predictable format. It may be a photograph, a police report, or a voicemail that should not exist.
PhotographsVoicemailsEncrypted notes - 02
Follow the trail
Connect clues across texts, maps, encrypted messages, browser histories, and hidden web pages. Play alone or call someone in.
- 03
Prove it. Then pass it on.
Submit your solution, earn your time, and send the Friend Test: “I solved this in 17 minutes. You won't.”
Featured format
The Stranger's Phone
Reconstruct what happened to someone you've never met from their texts, photos, notes, calendar, social posts, and unanswered voicemails.
?7
evidence channels
48h
to make your case
Choose your access
How deep do you want to go?
Start with one free mystery. Then decide how many doors you're willing to open.
Mystery Machine
—/ month
- Four mysteries every month
- Member leaderboard and badges
- Full case archive access
Mystery Machine PRO
Hard mode—/ month
Bonus investigations, harder cases, multiplayer mysteries, early access, and the vote on what's next.
Enter hard modeMystery Night · — once
A standalone 60–90 minute digital case for date night, friends, parties, or family.
The Friend Test
I solved this in 17 minutes. You won't.
Every mystery comes with a challenge worth sending. Turn a suspicious clue into a group chat argument, then watch the leaderboard settle it.
Send a challengeFriend TestOpen now
Can you identify the one thing wrong with this photograph?
Challenge expires in23:59:42