Atlas of Bretonnia · The Season of Revelation
The modders' workshop
The Season of Revelation, Warhammer I's mini-campaign, now plays in Warhammer III; its map is being stretched to all of Bretonnia, in public. Here is everything you need to come and help: where the build stands, how the map is made, and six guides to learn the tools.
- Ten playable lords
- Public beta, on the Workshop
- Saison Expanded: being built, in public
- 6 guides, reviewed for 9.0
Three doors
Where to come in?
Depending on what you're here for: helping the project, understanding its map, or learning the tools of Warhammer III modding.
First door
Help the project
Illustrators, 3D modders, writers, mapmakers, scripters, testers, lore fans: every talent has a place.
- 15 ways to help, from level I to level III
- Where to post, and who approves
- The path of an idea, all the way to the beta
Second door
Understand the map
How the Season's map is built, and the technical notebook for expanding it to all of Bretonnia.
- The chain, from Warhammer I to the game
- Saison Expanded, phase by phase
- Keys, grid, terrain, splits, glossary
Third door
Learn the tools
Six guides to modding a Total War: Warhammer III campaign map, written on a real build.
- RPFM, CAIME, Terry, BOB and the Assembly Kit
- Working with an AI
- Each also as plain text, for AIs
The build
Where the project stands
In order: a beautiful, playable, solid Season campaign; then long games; then the map expansion, already under way.
- Done · September 2026The Warhammer I map, playable in Warhammer IIIOriginal relief, forests, rivers and set dressing; ten playable lords, the Sisters of Twilight still being tested; 90 missions.
- In progressBeautiful, playable and solidTrue to Warhammer I's; its in-game lighting is still being redone zone by zone. The 9.0 update (per-lord victories, reworked vampires, the Red Duke reworked) is being tested: coded and seen in short automated test runs (2 to 5 turns); the Duke's new features (Decree of Richemont, the Tomb of Galand, Abhorash's favour, the challenge…) and the voiced prologues: coded but not yet seen in game.
- NextLong gamesNo long game played yet, balance not measured: every lord over hundreds of turns, alongside the map expansion.
- In progress · with youThe expansion to all of Bretonnia42 regions, 18 provinces and 11 seas, plus the split-off towns and, to the south, the Dreaming Wood, checked against the lore (true mountain ranges, Repanse de Lyonesse in the north, Norse and Druchii raids chosen), to see on the map. Its in-game build, “Saison Expanded”, began on 25 September, in public: the enlarged world's grid and relief are assembled, its regions, provinces and towns declared in the kit, its minimap drawn; nothing is playable yet.
The news, as of 25 September 2026
- The beta is out, public, on the Workshop: the mod, in English, and its French translation. Compatibility untested: in principle it should sit alongside other mods and campaigns, but nothing has been tried yet; that's what the beta is for. A problem? Tell us which one and what you saw.
- Saison Expanded has begun, in public: the 560 × 825 hex grid is laid in CAIME, the map and campaign are declared; nothing is playable yet.
- Ten playable lords, including the Sisters of Twilight, who arrived on 24 September.
- The 9.0 update being tested: a short and a long victory for every lord, the Red Duke reworked.
Third door · the tools
The workshop guides
For anyone who wants to mod a campaign map. The pitfalls are first-hand; every guide has been reviewed against the official documentation and the tools' code, and each one also exists as plain text (Markdown) for AIs, listed in /llms.txt.
A tour of the tools, and working with an AI.
- The tools
The overview: each tool and its guide, the startpos, crashes, automated tests.
- AI for modding
Modding with an AI: which model, first steps, RPFM's MCP server, the method, examples.
Packs and the game's tables, then the map's grid.
- The RPFM guide
Packs and tables: a first mod in ten minutes, then a unit, a faction, a lord.
- The CAIME guide
CAIME (Campaign AI Map Editor), the Campaign Map Toolkit's editor: a map's logical half, its layers, rules and exports.
A map's terrain: its relief, then its compilation.
- The Terry guide
The terrain editor: a first battle map, then the terrain of a campaign map.
- The BOB guide
The kit's builder: its recipes, its runs, its logs and its pitfalls.
Where to start? I want to…
- Add a unit, a faction, a lordThe RPFM guide
- Make my first battle mapThe Terry guide
- Create or edit a campaign mapThe CAIME guide
- Generate the starting position (startpos)The tools
- Understand a crashThe tools
- Test a campaign without playing itThe tools
- Read what BOB didThe BOB guide
- Work with an AIAI for modding
With you
The expansion and the community
The project is discussed on Discord, and the map expansion is built in public.
Where it happens
The Season
We meet on Discord: that is where we talk, share out the work, and share your beta games.
- The Season
- introductions
- Channels & Roles
The talents we are looking for
The beta is public, on the Workshop: the mod, in English, and its French translation. To play, the Realm of The Wood Elves DLC is required.
The build, told
Join the workshop: let's make the mods of our dreams together
Everything you can do, at every level, and where to find us.
Building a map expansion, from zero to 100: the Season Expanded build, live
The Saison Expanded build, phase by phase: tools, files, misfires.
All of Bretonnia: how we'll expand the campaign map
How the expansion map was drawn, from the atlas to the page.
The whole workshop journal
- Join the workshop: let's make the mods of our dreams together
- The Season of Revelation, back in Warhammer III in 4 days
- Tutorial: porting a Warhammer I campaign map to Warhammer III
- The 9 walls of porting a campaign map to Warhammer III
- All of Bretonnia: how we'll expand the campaign map
- Working with an AI on a big Total War mod
- Making the Red Duke playable: from lore to game tables
- A whole map in four days: what a frontier AI changes for modding
- Building a map expansion, from zero to 100: the Season Expanded build, live