Monster stat block converter for tabletop RPG GMs

Convert 5e, OSE, and B/X monster stat blocks into OSR and Shadowdark-compatible stat cards

Duskwarden helps you paste existing monster stat blocks, generate streamlined stat cards, tune difficulty for your table, and export printable or JSON-ready results.

Start Converting See 5e to OSR workflow

Supports 5e•Supports OSE•Supports B/X•Exports print and JSON

Paste and convert supported stat blocks

Use the conversion wizard to turn 5e, OSE, B/X, and generic monster blocks into compact stat cards in seconds.

Tune deadliness, durability, and output style

Adjust conversion settings to fit your campaign, from general OSR play to Shadowdark-compatible formatting and difficulty targets.

Export printable monster stat cards

Save to the library, print cards for the table, or export JSON and text for your own GM workflow and prep tools.

Popular use cases

These pages answer the most common questions about converting monsters for old-school play and Shadowdark-compatible tables.

5e to OSR monster converter

Learn how to turn 5e monsters into faster, lighter OSR stat cards without rebuilding them from scratch.

Shadowdark-compatible stat cards

See how Duskwarden creates compatibility-focused output for use with Shadowdark RPG while staying independent.

OSE and B/X monster conversion

Explore a workflow for converting Old-School Essentials and B/X creatures into printable stat cards and exports.

How Duskwarden works

1. Paste a source stat block. Start with a 5e, OSE, B/X, or generic monster block.
2. Choose your output target. Convert into OSR-style or Shadowdark-compatible stat cards.
3. Tune and verify. Adjust difficulty, durability, and deadliness to match your table.
4. Save, print, or export. Organize creatures in the library, then print cards or export JSON.

Direct answers

Supports: 5e, OSE, B/X, and generic stat blocks
Output styles: OSR-style cards and Shadowdark-compatible cards
Exports: Printable cards, text copy, and JSON download
Important note: Duskwarden is an independent compatibility tool and is not affiliated with The Arcane Library, LLC.

Frequently asked questions

Can Duskwarden convert 5e monsters to OSR stat cards?

Yes. Duskwarden converts 5e, OSE, B/X, and generic monster stat blocks into streamlined OSR-style stat cards that are easier to run at the table.

Does Duskwarden support OSE and B/X monster stat blocks?

Yes. Duskwarden supports OSE and B/X style inputs and can turn them into compact stat cards with printable and JSON export options.

Can I use Duskwarden for Shadowdark RPG?

Duskwarden offers Shadowdark-compatible output designed for use with Shadowdark RPG. It is a compatibility tool and does not reproduce official bestiary entries.

Can I print or export converted monsters?

Yes. You can copy converted creatures as text, download JSON, print cards, and save them in the library for later editing or organization.

Looking for more direct answers? Visit the full Duskwarden FAQ.