mystery-o-matic is a website that offers free murder mysteries for daily solving.
It was created by two passionate individuals who share a deep love for mystery and a strong
dedication to offering a unique experience to fellow detectives.
Unlike typical games, the daily mysteries on this website require deductive thinking, but they are
designed to mirror the unpredictability of real-life scenarios, making them more challenging and
varied in difficulty. Instead of following a predefined deduction path,
each daily mystery is synthesized through random exploration,
offering a refreshing twist compared to traditional deductive logic games.
The creators drew inspiration from popular games
like Cluedo (naturally), Squidi's "Infinite Detective" and
Murdle to shape the captivating world of mystery-o-matic.
The code that automatically produces the daily puzzles, as well as the rest of the website is open-source!
Images from suspects are from Freepik: [1],
[2][3][4][5][6][7]
The website is still in beta, therefore, rules, interface and design are subject to change!
Please feel free to provide feedback here or in our subreddit.
If you enjoy the website and wish to support our work, you can donate cryptocurrency to: 0xd0FD96CD73762Fd081cf2269D79F359e4314629b
🌡️ Sleuth-o-meter
This section shows the different scoring levels that you can get after solving a daily mystery.
To return to the game, simply click the 🧩 icon in the bottom-right corner of the screen.
Each clue revealed will decrease your score. Keep in mind that the website is still in beta, so this scoring system, the interface or design is subject to change.
Please feel free to provide feedback here or in our subreddit.
This section provides helpful tips and tricks to solve the daily mystery.
To return to the game, simply click the 🧩 icon in the bottom-right corner of the screen.
The gang gathers around a dusty tome adorned with whimsical golden letters on the cover that read "mystery-o-matic".
"Why do they want us to read this?" Alice asks, blowing the dust off the cover.
Eddie starts coughing and pulls out his inhaler.
"Could you be more careful and considerate? Also, give me that!" he says, snatching the book from her.
mystery-o-matic features a new mystery each day, set in a specific location, where each suspect acts independently.
The clues provided require both spatial and temporal deductions to solve the case.
🎓 Understanding clues and making basic deductions
In our murder mystery, characters move between rooms every 15 minutes, allowing us to track their locations over time through their statements.
For example, let's say we have the following clue:
Tutorial Clue #1
Alice said: 'I saw Bob when I arrived in the kitchen at 10:15'
From this clue, we can deduce:
🔎 Alice was in the kitchen at 10:15
🔎 Bob was in the kitchen at 10:15
🔎 Bob was alive at 10:15 (if he were the victim)
🔎 Alice was NOT in the kitchen at 10:00
Click on each deduction to strikethrough the text, which will help you focus on other clues. (Try it with the clues shown above next to the magnifying glass!).
Using the past four deductions, we can complete the clue table by adding either ✓ or ✗:
Once we finish with these, other deductions are popping up! These two new ones are based on the fact that characters cannot be in two places at the same time:
An important question still remains: where was Alice at 10:00? The location graph also provides some clues:
When a suspect announces leaving or arriving at a room, they can only move to a directly connected room. Since the kitchen is linked to both the dining room and the bedroom, we can't determine Alice's exact location before 10:00.
However, we can draw the following deduction:
🔎 Alice was NOT in the bathroom at 10:00
Using this information, we can complete the clue table:
"Hmm, aha, aha..." Eddie nods as he skims through the pages.
"So? What is it?" Carol asks, unimpressed.
"No idea, but look! Our names are in here. All of our names."
“Pff, way to make yourself feel important, Eddie!” snaps Carol, looking over his shoulder. “Your name isn’t there. Not even mine! Only Alice and Bob are used as examples to understand this stupid game.”
Other types of clues do not indicate clearly where each character is, but they can still be useful.
For instance:
Tutorial Clue #2
Alice said: "I heard someone cooking at 9:00"
With this clue, we can draw the following deductions:
🔎 Alice was NOT in the kitchen at 9:00
🔎 Someone, except Alice, was in the kitchen at 9:00
It can be tempting to try to guess Alice location, but it unclear from this kind of clues, as we cannot deduce how near or far she was from the location graph.
🤥 True lies
Daily mysteries can be played in two modes depending if the killer can lie or not.
In both of them the solution will be the same, but some of the clues will change.
Lying during a crime investigation is a serious business! The killer must be very careful since the rest of suspects
will always tell the truth. During each daily mystery, the killer will only lie if it helps to cover their tracks during the time and place of the murder.
While identifying the killer using unreliable information is usually harder since we don't know if the statements are true or not. However the rest of the suspect will always
tell the truth, making easier to spot any contradiction. Detecting a lie is easy: we need to look for a contradition in two statements. Let's see an example:
Tutorial Clue #3
Alice said: "I was in the kitchen from 9:00 to 10:00"
Tutorial Clue #4
Bob said "I saw nobody when I arrived to the kitchen at 9:30""
Once we spot a contradition, we know that exactly one of the following statements must be true:
🔎 Alice is the killer
🔎 Bob is the killer
Using deductions like these you are closer to catch the killer!
“Why did they leave me out of the tutorial?” groaned Dave, crossing his arms in disgust. “I’m a much more interesting character than Bob, anyway!”
“And I can't wait to 'murder' you in the game” mutters Frida, unfazed.
“Guys, there's even a list of weapons in here!” whimpers Bob, who ended up with the book.
“Awesome,” says Frida coolly. “Can I take a look-see?”
🔪 Finding the smoking gun
Following characters around is not enough. We need to figure out the murder weapon!
Identifying the murder weapon is often one of the most challenging task in daily mysteries. Most of the players struggle to do it.
Basic technique: discarding by weapon types
Behold!, here's the list of weapons found in our daily mystery puzzle, classified by the type of wound they cause.
Keep in mind you won't see all of them being used at once.
Firearm/Projectile: Weapons that discharge bullets or launch projectiles: 🔫 gun
Sharp Force: Weapons that cause injuries by cutting, stabbing or piercing: 🔪 knife, 🗡️ dagger, ✂️ scissors, 🪓 axe, 🪛 screwdriver
Blunt Force: Weapons that cause injuries through impact: 🔨 hammer, 🔧 wrench, 🕯️ candelabrum
Among the initial clues, you'll find the name of the victim, the suspects' locations when you arrived, and where each weapon was found:
The hammer (🔨) from the bedroom
The rope (🪢) from the kitchen
The scissors (✂️) from the dining room
The pistol (🔫) from the bathroom
Keep in mind that weapons' location is randomized by the loop to confuse you and it holds no logical explanation.
How can this information be used to solve the murder mystery? Well, on occasion, you will come across a clue related to the wounds inflicted on the victim that will help you discard a certain kind of weapon. For example:
Tutorial Clue #5
Inspecting the body reveals no signs of stabbing
From this clue, we can deduce:
🔎 The killer didn't use any of the weapons from the “Sharp Force” group.
Armed with this deduction, we can discard a weapon in the following table. Just click on the weapon icon to cross it out:
Advanced technique: follow the killer
There is a more advanced technique to identify the weapon, or at least discard some of them faster. It works using the follow initial clue:
Initial Clue
No one saw the killer retriving the murder weapon
This statement, combined by suspecting who the killer and when it happened helps a lot to identify or discard weapons. Let's see an example:
Tutorial Clue #6
"I was in the kitchen from 8:00 to 10:00" stated Alice
In this case, if Alice is not the killer and the crime happened between 8:00 and 10:00, we can arrive the following deduction:
🔎 The killer didn't take the weapon from the kitchen.
Armed with this new deduction, we can discard another weapon in the following table. Just click on the weapon icon to cross it out:
By mastering these techniques and honing your deductive reasoning, you'll become a top detective. Happy sleuthing!
A group of friends stumbles upon an eerie abandoned mansion. Now confined within its sinister grasp, they find themselves thrust into a chilling series of murders. Each day brings a fresh enigma, with one of them as the unfortunate victim and the rest as suspects.
Locked in this endless cycle by malevolent forces known only as the Producers,
our heroes stumble upon a glimmer of hope that transcends both space and time, allowing
them to break free from the confines of the old Victorian mansion.
However, as they embrace this newfound freedom, the machinations of their captors persist, weaving
the threads of each daily murder mystery.
Get ready to solve a fresh murder mystery! Your goal is to figure out who did it, when it happened, and what weapon was used.
Frida, Eddie and Dave are back into the mansion where everything started!
Help them solve this mystery checking out these initial clues:
Frida was murdered in the bathroom (🚽) at some time between 3:00 and 5:15
The murderer was alone with their victim, and the body remained unmoved
The murderer wasn't caught with the body
The killer retrieved the murder weapon from one of these places:
Get ready to solve this puzzle! You'll get clues that slowly uncover the truth behind the murder. The daily puzzle can be solved in two modes. In the easy mode, everyone will be telling the truth. Optionally, the killer can sometimes lie if you want a harder challenge.
Each clue you read will affect your score. Think carefully as you search for evidence and question the suspects to solve the mystery. When you crack it, you'll get a rank from the wonderful sleuth-o-meter™.
Are you up for the challenge? Let's start investigating!
📔 Detective’s Journal & Clues
Use this table to keep track of your facts, clues and deductions. You can check the how to
play section if you need it.
Start choosing whether the killer never lies (easier) or is allowed to lie (harder).
Clue
CLUE
👉 Time for accusations
After working overnight collecting evidence and analyzing clues, it's time to crack this case
by choosing the suspect, the time of murder, and the weapon. A word of warning: if you select
the wrong answer you can try again, but the loop will punish
you lowering your final score.
The weight of evidence against the accused was immense, leaving no room for doubt. The loop is pleased.
Congratulations on cracking the case!, you solved today's mystery with sleuth-o-meter™ rank of
Optionally, you can use this local notebook to track down the story progression:
Come back tomorrow for another challenge.
🤖 Answer is.. beep boop, wrong!
You're confronted with a baffling puzzle filled with contradictory evidence.
It's clear that either the suspect's identity, the timing of the crime,
or even the weapon involved might be wrong, casting doubt on the investigation.
The loop is displeased and resets abruptly, leaving you without any clues for the day. You can return tomorrow for another challenge.