Every mystery
needs a keeper.
A tabletop for Call of Cthulhu 7e. Prepare the scene, gather your investigators, and let the story unfold in your browser.
Private beta detailsCurrently in private beta
You bring the mystery.
Harold keeps the table.
For Keepers and investigators who want a shared space for their campaigns. Keep the conversation in your group’s Discord call.
From the first clue
to the last roll.
Prepare in private.
Play together.
- Prepare the unknown.
- Build rooms and furnish scenes in 3D, or bring your own floor maps. Stage the next location before your players arrive.
- Reveal just enough.
- Use fog and visibility zones to keep secrets off the players’ screens. Bring one investigator to a scene, or reunite the whole group.
- Keep the story moving.
- Character sheets, skill checks, guided combat, private notes, and a media vault keep the session together. You make the final rulings.

One table.
Different secrets.
Your players see what you reveal. Their character, resources, and rolls stay close at hand while you manage the scene.
Invite your group to a campaign. Each player joins in the browser and claims a character. No desktop client to install.
Built for Call of Cthulhu 7th edition. Other game systems and homebrew templates are future work.
Currently in
private beta.
The next chapter is still taking shape.
A product in the making.
Harold is a closed-source product, currently being beta tested in private.
Pricing & usage
Pricing and usage details will be disclosed after the beta ends.