Bastion Builder
The ground as it stands

The bastion's story — saved with it, and shared with anyone you send it to.

Sourcebooks Core only

Extra books you can commission facilities from in this bastion. Core is always available.

Always on
Forge of the Artificer
Heroes of the Forgotten Kingdoms
The Horrors Within

Share this bastion i

This makes a link with the whole bastion tucked inside it — the charter, every floor, the register of chambers, the household, and how things stand right now: defenders on hand, stores, and each facility's own tallies and notes. Nothing is uploaded anywhere; whoever opens the link sees a read-only copy — and can download a Roll20-ready map of it with one click. Your bastion turns, ledgers, and milestones are left out — a shared bastion is a handout, not your logbook.

Readers

Connect your campaign's Discord channel

This bastion is your campaign — connect the Discord channel for its table. The channel link is a posting key: it stays on this device and never rides your saves, backups, or shares.

Discord → your channel → Edit → Integrations → Webhooks → Copy Webhook URL
Shown on the post button; blank reads as “your channel”.

Download map for your VTT i

A grid-aligned battle map — every floor on one sheet by default, ready to drop onto Roll20, Foundry, or Owlbear Rodeo.

What's in the file

Grid resolution

Floors

Background

Palette

Ink colour of walls and labels — separate from the background above.

Open handout i

A printable survey of your bastion, opened in its own tab — parchment, plates and all. Print the whole thing, or just the sheet that sits beside your character sheet at the table.

What to print

The full survey is the whole codex. The reference sheet drops the plates and the history and keeps what you need in front of you at the table.

Sections

Your bastion's own written description
One framed plate per floor, with its scale bar
Numbered note markers, listed under each plan
What each facility can order, and what it produces
Every chamber you have raised, floor by floor
Named hirelings, and everyone in residence
Defenders on hand, stock, and the ledger
Each completed build phase and what it cost
Hirelings, defender housing, and your walls
Ruled lines to write on, for turns you run at the table

The plans, the orders and the register are the document — at least one of them stays.

Paper

Commission a facility i

New facilities land in the library, ready to drag onto a plate.

Homebrew facility i

Yours to shape — official facilities stay as the book wrote them.

Identity
Icon
Requirements
Mechanics
Orders
Outcomes
Improves at higher levels optional

Your homebrew i

Facilities and event tables of your own, shared by every bastion in this browser; each bastion can opt out on its Charter.

All floors i

Read-only — edit on The Grounds.

Import from D&D Beyond i

Best-effort — pulls name, level, and class. You confirm before anything changes.

Find your character file

Paste your D&D Beyond character page link below. Make sure the character is set to Public on D&D Beyond first, or the file won't load.

Settings i

Saved for this browser.

Appearance

Your library i

Everything in this browser. For a single bastion, use the Bastions menu.

Back up & restore

Your bastions, homebrew, shelf, campaign filing, and settings — saved as one file. Restoring replaces everything in this browser.

Your homebrew

Your own facilities and event tables — shared by every bastion here.

At the table

Optional aids while you run your bastion.

Placing a facility no longer marks it finished — clear "Under construction" by hand
When you place a facility, fill it with its signature furniture — edit or clear it afterwards in Furnish mode
Show build time as years and months instead of a raw day count
Show a reference glyph next to creature and spell names — clicking fetches the stat block from Open5e (open5e.com)

This copy

Click to copy the commit, or see what's new after an update.
Companion service

Help & Guide

Create your Bastion

A few details to get you started — change anything later on the Charter.

Focuses & proficiencies optional

What your owner can already do — this decides which special facilities they qualify to run. Change it anytime on the Charter.

Bastion type Standard
Anchored to a place
No house requirement
Renown 25+ with House Lyrandar
Renown 25+ with House Lyrandar
Renown 15+ with House Orien

Mobile bastions are Eberron content — enable it under Sourcebooks to choose one. The helm is placed for you and can't be changed later.

Sourcebooks optional Core only

Extra books this bastion's campaign uses. Core is always available.

Forge of the Artificer
Heroes of the Forgotten Kingdoms
The Horrors Within

What's new