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Dice recognition for tabletop RPGs

Real dice, virtually anywhere.

Roll your own dice into your own tray. Rollcaster watches from above, reads every die the moment it settles, and shares the result with your table — across the room or across the world.

Download Rollcaster See how it works

For Windows, macOS & Linux · Getting started guide

How it works

No special dice, no app on your phone, no typing numbers into chat. Just roll.

  1. Roll real dice

    Into your own tray, with your own lucky dice, the way it should be.

  2. Rollcaster reads them

    A camera above the tray sees the dice settle, and Rollcaster reads every face. If a die is hard to read, it asks rather than guesses.

  3. Your table sees it

    Results appear for everyone in your shared session — with a short video of the dice landing, if you like.

Made for the table

Your dice stay real. Everything else gets easier.

  • Asks rather than guesses

    When a die is hard to read, Rollcaster pauses and asks someone to confirm. A shaky reading never slips through quietly.

  • Plays where you play

    Shared sessions put everyone’s rolls on everyone’s screen. Post rolls to your Discord channel, or send them to Foundry VTT (in testing) and your own tools.

  • Private by design

    Your camera picture stays on your computer. Rollcaster only ever connects out, and shares pictures of your dice only if you turn that on.

  • Learns your dice

    Marbled, glittery, dark-on-dark: import a dice pack for your set, or teach Rollcaster your own in a few minutes per die type.

Two editions

Pick the one that matches how you play. Everyone in a shared session can use either.

For players with the dice tray

Rollcaster

Watches your tray through an overhead camera, reads every roll the moment the dice settle, and shares the result with your table.

Get Rollcaster

For everyone else at the table

Rollcaster Eye

Watch a shared session’s rolls land live: no camera, no dice tray, nothing to set up. A small download.

Get Rollcaster Eye

Latest news

All news

  • Rollcaster 0.4.6: a better Mac, and Find tray

    Mac players can join shared sessions, updates from inside the app now reopen cleanly on a Mac, and Calibrate can find your tray for you.

  • Rollcaster 0.4.5: pip dice, and sets that know their own dice

    Rollcaster reads d6s with pips, deep enrolled dice sets stay out of each other's way, and the setup tour, title bar and light mode get a polish. Plus a catch-up on 0.4.4, the version that updates itself.

  • Welcome to rollcaster.net

    Rollcaster.net is now live! Rollcaster has a proper home on the web, including downloads, guides, help, news and a way to reach us, all in one place.

Ready to roll?

Download Rollcaster, set up your tray, and your next roll is on everyone’s screen.

Download Rollcaster Read the guide