iPhone (Safari)
- Open play.osteonix.app in Safari.
- Tap the Share button, the square with an arrow pointing up.
- Choose "Add to Home Screen", then Add.
A witch hunt with no game master
Night falls. A witch is hiding among you.
Around a table, eye to eye: accuse, bluff, unmask the witch. Osteonix is the storyteller's voice: it narrates the night and settles the votes, so everyone is in the game.
In your browser, on iPhone and Android alike · Internet connection required
- Players
- 5+
- Account
- None
- Price
- Free
Everyone gets a role. Nobody shows it.
Village or dark faction: your role decides what you know, what you hide and how far you're willing to bluff.
Dark factionWitch
Eliminates a villager every night, lies all day.
VillageThe Oracle
Uncovers one player's side every night.
VillageSeal Watcher
Shields one player each night, never the same one twice in a row.
VillageVigilante
If eliminated, takes one player down with them.
VillagePyre Martyr
If the vote ends in a tie, they burn instead.
Dark factionMatriarch
Leads the coven from the shadows.
Special roles come into play depending on how many of you are playing. Four more roles with Premium.
One gathering, from code to pyre
Around one table, face to face: your phone keeps your role secret, and the game happens between you. Osteonix plays the storyteller.
Start the gathering
One player creates the gathering, the others join with the 6-letter code or by scanning the QR code. No account, just a name.
The app: opens the gathering and brings the players together.
Check your role
It appears on your screen, for your eyes only. Keep it that way.
The app: deals the roles in secret.
Night falls
The witches choose a victim while the other roles act silently on their phones.
The app: narrates the night out loud from the host's phone, the storyteller's voice.
By day, you accuse
The village argues out loud, then votes, until one side wins.
The app: counts the votes and enforces the rules, ties included.
Install on your phone
Nothing to download: Osteonix runs right in your browser, at play.osteonix.app. To open it in one tap, add it to your home screen.
Android (Chrome)
- Open play.osteonix.app in Chrome.
- Tap the ⋮ menu at the top right.
- Choose "Install app" or "Add to Home screen".
- Only one phone needs soundThe host's phone is the storyteller's voice: it plays the narration and the ambience for the whole table. Keep it awake, with Osteonix in front.
- Everyone else joins in secondsWith the 6-letter code or by scanning the host's QR code, nothing to install.
Free to start
Free
Everything you need for your first game night.
- 5 to 8 players
- 7 roles, including the Oracle, the Matriarch and the Vigilante
- Voice narration in English and French
- No account
Premium
4,99 € · one-time purchase, no subscriptionFor bigger groups.
- Up to 14 players
- 4 extra roles: Enchantress, Fanatic, Crow, Archivist
- 10 narration variants per line (5 in the free version)
- 4 visual themes
Bought inside the game, once. On the web, secure payment through Stripe. Restorable on another device. Terms of sale
Frequently asked questions
Do I need to install an app?
No. Osteonix runs in your browser: the host opens play.osteonix.app, the others scan their QR code or type in the gathering's code. You can also add it to your home screen.
Do we need to be in the same room?
Yes. Osteonix is played around a table, face to face: each phone keeps a role secret, and only the host's phone, the storyteller's voice, plays the narration.
How many players?
At least 5, and up to 8 in the free version.
Do I need an account?
No. A name and the gathering's code are all you need.
Do I need an internet connection?
Yes, every phone needs to be online during the game.
Does every phone need sound?
No, only the host's: it plays the narration and the ambience for the whole table.
Do we need to know the rules?
No. Your role and its power appear on your screen, and the game enforces the rules.
Is every role in every game?
No, it depends on how many of you are playing. The bigger the group, the more special roles come into play.
Can iPhone and Android players play together?
Yes. Everyone joins the same gathering from their browser, whatever their phone.
Which languages?
English and French, for both the interface and the narration.
Is it free?
Yes, for up to 8 players. Premium is a one-time 4,99 € purchase, with no subscription, made inside the game: up to 14 players, four more roles, more narration variants and visual themes.