Mystery Games Online: Choose a Case or a Story
Choose how you want to investigate tonight. Work through a free real case with sourced evidence, solve a fictional murder on the last train, or follow an elevator into a floor that should not exist. Each interactive story starts with a free chapter. Everything runs in your browser, with no account or download.
No Fourth Floor: an interactive horror story
A choose-your-path horror story set in a Vancouver apartment tower. At 3:04 a.m. the elevator stops at a floor that has no button. The opening is free to play; the full file, with four endings, is a paid unlock.
- 4 endings
- 11 clues
- 3 sealed chapters
Buy · US$4.99 Give as a gift →
Free first chapter · US$4.99 full story · 4 endings
Start the story →Platform 17, Rain: an interactive murder mystery
Seven tickets were checked in the last car of the last train. Six people got off. You have their statements and forty minutes before the train is washed. The first chapter is free; the full case, with four endings, is a paid unlock.
- 4 endings
- 24 clues
- 3 sealed chapters
Buy · US$4.99 Give as a gift →
Free first chapter · US$4.99 full story · 4 endings
Open the case →Archive Pass: everything paid, one payment
Every paid story in full, 15 questions per witness a day, 10 legends a night and the Real or Fake archive.
US$19.99 once · lifetime · no subscription
See the Archive Pass →Cold Case: solve real unsolved cases
Six open cases, each with an evidence board and two witnesses you can question in your own words. Pick the theory the evidence supports and file your report.
- The D.B. Cooper Case
- The Alcatraz Escape Case
- The 300 Million Yen Case
- The MH370 Case
- The Dyatlov Pass Incident
- The Glico-Morinaga Case
6 cases · free · single player
Open the case files →Detective desk: track your rank
See which cases you have opened, which reports you have filed and the best rank you have earned, from Rookie to Chief Inspector.
Saved in your browser
Go to the detective desk →Real or Fake?: a daily mystery quiz
Ten cards a day, claims and photos, the same for everyone. Stamp each one real or fake, then see the evidence and how everyone else scored.
10 cards a day · free
Play today's round →Tonight's file: one verdict a night
One file opens every night at nine. Read the claim, examine the evidence and stamp your verdict before it is sealed again.
Opens at 9 p.m. · free
See tonight's file →Questions people ask
Are these mystery games free?
The six real cases and the daily quiz are free. Both interactive stories have a free first chapter. Each full story costs US$4.99; the US$19.99 Archive Pass includes both full stories and higher witness-question limits.
Do I need to download anything or sign up?
No. Every game runs in the browser, and progress is saved on your device.
Are the mysteries real?
The cold cases and quiz use sourced, fact-checked files. No Fourth Floor and Platform 17, Rain are fictional interactive stories, clearly labeled as fiction.
Which mystery game should I start with?
For a murder mystery to solve, try Platform 17, Rain’s free first chapter. For psychological suspense, start No Fourth Floor. To investigate a real case, open D.B. Cooper; for a quick quiz, play Real or Fake.