Cold Case Inc
Solo Murder Mystery Games Online
An evening to yourself. A case full of unanswered questions. Open the police computer, follow the evidence and decide what really happened.
- Play on your own
- No host needed
- In your browser
- No subscription
Follow your own train of thought
Your case.
Your working theory.
No roles to divide up and no character scripts to perform. Read the accounts, inspect the evidence and decide which lead deserves another look.
Each investigation has its own story and mix of records, images and digital evidence. This preview shows the photograph comparison view in Love, Aisle & Murder, our newest case.
See how an investigation worksWhere will you start?
Pick the challenge.
Open the file.
The Final Fare makes an easier first investigation. The Elite Grand Enigma is a step up in difficulty. The Waters Edge gives you a longer, harder mystery and a digital trail to follow.
Playing times are estimates. Check the case page for current prices and its full evidence list before choosing.
The Final Fare
Emma Green never makes it home. Rebuild her movements through witness accounts, audio interviews and a phone investigation in this compact Westleigh case.
The Elite Grand Enigma
Isabella Novakova is dead at London’s Elite Grand Hotel. A world of polished appearances, private arrangements and conflicting alibis is now yours to investigate.
The Waters Edge
Lauren Miller disappears during a riverside camping trip. Follow her movements through police evidence and Viewzr, a fictional social network woven into the investigation.
Good detective habits
Follow the lead. Test the story.
Read the opening file.
Note the people, places and times before settling on a suspect. Start with the question you need to answer.
Separate claims from facts.
Look for another record that supports or challenges each account. A notebook beside your screen helps keep the timeline clear.
Challenge your own theory.
Check what your explanation leaves unanswered before submitting your conclusion. A convincing story still needs evidence.
Build your approach at Sleuth Academy, or use the Case Match Quiz to choose your starting point.
Your first file is on us
Ten minutes. One mystery.
Get a feel for the detective work before settling into a longer case. Flat 33 is a complete short investigation, designed to take around 10–12 minutes, with an ending to uncover.
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Play Flat 33 free →Before you begin
Your first solo investigation.
A few practical details before you open the file.
Read player reviewsCan I solve these cases without a host?
Yes. Cold Case Inc investigations can be played alone. You examine the evidence and submit your conclusion yourself; another player does not need to run the game or hold the solution.
Do I need detective experience?
No. An Easy case is a sensible starting point. Read carefully, compare the records and give yourself room to reconsider your first theory.
Can I return to my case later?
Yes. Reopen your investigation through your account when you are ready to continue. There is no forced timer or need to finish everything in one sitting.
Are these downloads or browser games?
The investigations run in your browser through a fictional police computer system. You do not need to install a game. Check the individual case page for its evidence and any optional printable materials.
Are the crimes real?
No. Cold Case Inc investigations are works of fiction, presented through police-style records and other story evidence.
What if I want to play with someone next time?
You can also investigate together. Our guide to murder mystery games for couples helps you plan a shared-screen evening.
Your next lead is waiting.
Pick a story, open the file and see where the evidence takes you. Planning an evening with someone next time? Explore our murder mystery games for couples.
Choose your investigation →