CosyKiller: The Adventure Role Playing Detective Game

My obsession with mystery stories came about when I was around 12 years old and discovered Agatha Christie. Ever since then, I have been fascinated by mystery stories and follow along trying to solve them. So naturally, the increase in mystery subscription boxes has me overly excited. CosyKiller is like nothing I have tried before, though. 

CosyKiller is an adventure role playing detective game that is delivered monthly to your door. The difference between this mystery sub box and others is that this story spans month to month for the length of the entire year. In addition, each one of the mystery items they send you are probably the most realistic I have ever come across. But I'll get to that here in a moment.

You will be sent clues, keepsakes, and mementos that you will use to solve a crime. And I am serious when I say they go all out with these boxes and making them realistic. When this arrived, even the box had the inheritance company logo on it. The only things in the box were this book (wrapped in tissue paper) and a letter. Nothing else. I was thoroughly confused until I realized it was this new subscription box that I was testing out. My husband actually questioned if it was real. That's how impressively realistic everything is.  

The notebook is made to look like it had been burnt and even smelled like it had been! The pages on the back were falling off, so I did have to be very careful with it, but then again, you would naturally have to be careful with an aging book anyway. So once again, it added to the experience. 

Tucked into the pages were a mysterious code and what appears, to me, to be a bay leaf. A real one. 

The story for this year's mystery (according to the website) is this:

It’s the 1930s. Marie Jones, a young woman from a wealthy family in England has been sent to India to stay with her aunt in order to find a suitable match….within the year Marie is found to be missing.
Her lost journal is finally discovered under the floorboards of a local dwelling by an heir hunter. As the last known living relative of the family line, the journal falls into your possession.
The attention to detail in this entire thing is amazing! They even have the theme and descriptions for the next two years mysteries!

Each box is $40, and I see on the site that if you miss a box, you can go back and purchase the ones you need. This is highly suggested since each box holds a new clue and the mystery spans the course of an entire year, which means you won't come to a solution until the year is up.

This is a great game to play alone, but imagine how much more fun it would be to do this with a group once a month? You could host themed murder mystery nights where you listen to music from the time period, enjoy snacks and drinks from that period, and try to solve the mystery together.

In addition to the pay as you go feature, you can also go ahead and purchase the full year at $440.
Okay, yes, I am aware that's a lot of money, but I swear to you, it's so worth it! And you'll save money by buying the annual subscription! A great suggestion is if you do this in a group, and decide to spring for the annual, each member of the group can chip in towards the price. It's a win/win if you ask me.

Intrigued? You can learn more at

Sample was received for promotional purpose. All opinions are that of Simply Nerdy Mom. 


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