Grand Tribunal UK
What is Grand Tribunal?
A small, welcoming convention focused on Ars Magica and historical fantasy roleplaying. Expect one-shot games, boardgames, workshops, freeforms, and the legendary Saturday evening game.
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.
People
Grand Tribunal has always been about people rather than programmes. Over the years it has become a gathering place for players, authors, game masters, artists, and friends from across Britain and Europe. This year we are joined by --
Players
Newcomers and veterans alike are welcome. Whether this is your first Ars Magica game or your hundredth, there is always room at the table.
Game Masters
Grand Tribunal thrives on its volunteer GMs, who bring everything from introductory adventures and campaign episodes to freeforms, historical scenarios, and experimental games.
Friends
More than anything else, Grand Tribunal is an opportunity to spend a weekend with friends old and new, sharing stories, games, ideas, and perhaps a little magic.
Grand Tribunal has welcomed attendees from across the United Kingdom, Norway, Sweden, Denmark, Germany, France, the Netherlands, and beyond.
The convention remains deliberately small enough that everyone can get to know everyone else. Many attendees return year after year, while newcomers are always welcome.
Dates
14th-16th August 2026
Friday evening to Sunday teatime.
Venue
Cheltenham, UK. Full address and accessibility information released with tickets. All venues are mobility accessible.
Step-free access, nearby parking, and 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.
- Your PayPal receipt is your ticket.
- Buy four tickets for the price of three.
- Grogs, meaning 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.
Run a Game
Pitch a one-shot, freeform, campaign episode, boardgame event, or other Ars Magica related activity.
Submit a GameOutline Schedule
- Friday - Doors 18:00, welcome, short games.
- Saturday - Morning and afternoon game slots, charity raffle, evening games till late.
- Sunday - Games until goodbyes at 17:00, then off to the Indian restaurant.
News
- 26 Oct 2025 Site converted to static hosting. No more server crashes. Huzzah.
- 01 Sep 2025 GM submissions open.
- 01 Sep 2025 Tickets go live.
Archives
Looking for previous years' scenarios, photos, or notes?
The old wiki has been frozen into static pages: faster, safer, and easier to search.
Credits
Thanks to our GMs, volunteers, and publishers who have supported GT over the years, including 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.
Contact
Email: chrisjensenromer@hotmail.com
Want to help? We are always glad of volunteers on the day.