GRAND TRIBUNAL
Games, friends and magic in Cheltenham, England

What is Grand Tribunal?

A small, welcoming convention focused on Ars Magica and historical fantasy roleplaying. Expect one-shot games, workshops, panels, and the legendary Saturday freeform.

Who runs it?

It is a community event organised by volunteers and supported by friends from the wider RPG scene. We keep it affordable, cheerful, and magical. Ars Magica author CJ Romer and Andrew Oakley put it together each year.

No corporate overlords. Just magi, grogs, and good company.

Dates

14th–16th August 2026 (Fri evening → Sun teatime).

Venue

Cheltenham, UK. Full address and accessibility info released with tickets. All venues are mobility accessible.

Step-free access • Nearby parking • Plenty of tea.

Community

Roughly 50/50 gender balance, welcoming of NB and trans attendees, and a zero-tolerance harassment policy.

Tickets

We keep prices low; proceeds cover room hire and essentials. When sales open, use the link below.

Select tickets:

1x Waged £20 2x Waged £40 4x Troupe Deal £60 1x Unwaged £10 1x Local Grog £10

Code of Conduct (PDF)

• Your PayPal receipt is your ticket.
• Buy four tickets for the price of three.
• Grogs (local residents living in Gloucestershire) get a discount provided they agree to help out.

Want to GM? Grab a ticket then submit a game. GMs get scheduling priority.

GM & Seminar Submissions

Pitch a one-shot, freeform, or talk. We love historical oddities, mystery scenarios, and crunchy lab work.

Archives

Looking for previous years’ scenarios, photos, or notes?

The old wiki has been frozen into static pages — faster and easier to search.

Credits

Thanks to our GMs, volunteers, and publishers who have supported GT over the years — Atlas Games, Chaosium, Pelgrane Press, and many more. Especial thanks to Atlas Games as this is an Atlas Games con, and to the Nephews and Line Editor David Chart for his unstinting support of the event since 2007.