Discover Mystery Poster, a new puzzle game on a poster!

Our investigation games

Cooperative investigation games inspired by escape games, with real objects to offer an even more immersive experience.

Pocket Investigations

Pocket Investigations

A series of lighter investigations received in your mailbox.
> More information
> The scenarios


Legacy: Quest for a Family Treasure

Solve the mysteries of your family history to find the treasure of your ancestors (September 2021).


Mystery Poster #1

Puzzles on a poster


Apocalypse: Sign of the Cross

A serial killer sends you a mysterious package: will you save his next victim in time?

FAQ  |   Reviews  |  Shop

Our other games

Narrative games, strategy games and various creations



A role-playing game in which language is the source code of reality (October 2021)



Pyrga is a 2-player abstract strategy game (2022)

A Fistful of Gold

A Fistful of Gold

Pur minimalist double guessing for 2 players (try it on Board Game Arena).

Pocket Investigations

An immersive investigation

Show your observation and deduction skills to solve a series of puzzles. Each game contains 5 to 10 realistic items and documents (a letter, a card, keys, a matchbox...).

Search and manipulate

Like in escape rooms, you will have to examine, manipulate and combine items that are sometimes hidden.

Scenarios for every taste

Whether you have to track down a serial killer, find a hidden treasure or solve an historical mystery, each episode explores a different theme based on an original narrative.

Between virtual and real worlds

Depending on the scenario, you will have to consult and interact with online content: real information websites or fake pages created by us (videos, sounds, social networks...)

Gather a team

Cooperate to solve the case. It is possible to take your chance alone, but for most scenarios it is recommended to gather 2 to 4 players.

Send a unique and original gift

Treat your friends with 100 grams of suspense sent to their mailbox!

How to play

1) Receive a mysterious envelope in your mailbox

You receive by postal mail a mysterious envelope containing all the game elements.
Order one scenario or a multi-episode combo. Each episode is playable independently from the others.
You can also offer the game to a friend: guaranteed to surprise!

2) Log into the website

A laptop, a tablet or a smartphone with an internet connection are required to play.

Open the game launch page (the address is indicated on the sticker on the back of the envelope).
You will find there instructions as well as a link to hints.
You can then start playing. A game typically lasts between 45 to 100 minutes.

3) Examine the items & documents to solve the case

Read the documents, examine the items, inspect everything carefully.
Search, handle, decipher, make connections between the various elements to try to identify the culprit, find the secret code or discover the hidden treasure... Then enter the solution on the game website.
If you're a team of several players, share the tasks and don't forget to communicate between you!

The scenarios

See the Pocket Investigations page on BoardGameGeek

Press reviews

Surprisingly challenging (...) An intriguing set of convincingly realistic objects” (...) a puzzle hunt, but the narrative framing and the naturalistic presentation of the clues are straight from an escape room.

Escape The Review

Clever and compact puzzle design (...) Well-designed game flow (...) Well-thought out hint system (...) It's rare to see a hand-made puzzle game that has deliberate art direction.

Room Escape Artist

If you enjoy escape rooms, mysteries or puzzles of any sort, there's no doubt you'll enjoy the challenge.

Married With Board Games

A challenging level (...) a fun experience.

The Logic Escapes Me
More reviews on Apocalypse | More reviews on LEGACY


Frequently Asked Questions

Some paper and a pen to take notes. An Internet connection (ideally a tablet or a computer for more comfort, but a smartphone is good enough.) No preparation required: open the game and play!
Yes, each game is playable on its own. "Merry Christmas" is the easiest scenario. "Casino Krysos" is probably the hardest one. The "Apocalypse" series includes "Prelude", "Apocalypse: Sign of the Cross" (the longest and most hardcore game, sold out) and "Babylon", and we recommend that you play them in that order.
Sometimes the scenario can induce a feeling of urgence, but the game length is not limited by a timer. Depending on the episodes and the level of the players, each game is designed to last between 45 and 100 minutes. An online hint system prevents from being stuck. You can also join the players community on our Discord chat server.
Most of our games are designed for a mature audience. Unless stated otherwise on the game description, it is recommendd to be 14+ to play Pocket Investigations.
Not by the same players (unless you suffer from severe amnesia!), but you can resell or offer the game to someone else. Almost all of our games do not require to damage any of their components (and if necessary, we offer a free PDF download of the documents that might be needed to reinitialize the game.)
You have lost the sticker on the back of a Pocket Investigation envelope? Don't panick! Find the access to all our games on this page.


Created in 2018 by Mathias Daval and Johanna Pernot, Argyx Games is an independent board games studio and publisher, based in Paris. Argyx specializes in creating alternate reality investigation games and immersive games, as well as treasure hunts and online puzzles for team building. Its first game, "Apocalypse", was funded on Kickstarter in July 2018. Argyx then launched a line of narrative investigation games, "Pocket Investigations", as well as a second escape box, "LEGACY". Argyx Games is also the editor of a blog dedicated to reviewing puzzles and board games in general: Ludochroniques (in French).
The team :
Game architect Mathias Daval (Allys)
Game designer Qu Tianru (Zoé)

Créé en 2018, Argyx Games est un studio de développement et un éditeur indépendant de jeux de société, basé à Paris. Argyx est spécialisé dans la conception de jeux d'enquête en réalité alternée ainsi que dans des jeux narratifs et immersifs. Notre premier jeu, "Apocalypse", a été financé sur Kickstarter en juillet 2018. Depuis, Argyx Games a lancé une gamme de jeu d'enquêtes, "Pocket Investigations", ainsi qu'une deuxième escape box : "LEGACY: Quest for a Family Treasure" et une gamme de jeux d'énigmes sur des affiches, "Mystery Poster".
- Participation au développement de nouveaux jeux (game design, tests, fabrication de prototypes)
- Animation des réseaux sociaux
- Animation d'événements & salons
- Missions de marketing et partenariats (e-mailing, démarchage commercial...)
- Joueur, de préférence avec un intérêt particulier pour les jeux d'enquêtes (murder parties, escape games, soirées enquête, etc.), amateur des jeux de société en général.
- Bonne connaissance des réseaux sociaux (Facebook, Twitter et Instagram)
- Anglais lu/écrit
Lieu & durée
- 1,5 à 2 / jours par semaine dans nos bureaux à Paris 5e (+ éventuellement 0,5 / jour par semaine en télétravail).
- Durée : 2 mois ou plus (durée flexible)
- Rémunération : gratification en vigueur

Contact (CV + motivation) : Mathias Daval à contact at
@ Contact us
YouTube: ***