Package Description

Worlds Without Number for Foundry VTT (Unofficial)

Everything you need to play Worlds Without Number in Foundry VTT. This was forked from v1.1.2 of the Old School Essentials project developed by U~man. I have managed to mangle his beautiful project into something that works for Worlds Without Number. All praise should be directed toward him. Any bugs or mistakes are undoubtedly my own.

Find the original OSE project by U~man here:


  • Calculated Readied/Stowed values, including dynamic tracking of currency weight
  • Calculates total wealth from carried coin, bank, and treaure items
  • Track weapon tags; hovering over the tag icon or name displays the full tag description
  • Track Effort commitment by Art and have class-specific Effort updated automatically
    • Click Tweaks in the character title bar to activate spellcasting and enter caster class(es)
  • Visual indicator of health/strain percentage
  • Auto-calculate saves for PCs and NPCs alike
  • Calculates movement rates based on Readied/Stowed values
    • Use standard WWN movement rates or B/X movement
    • Auto-calc can be disabled
  • Adds attribute bonuses to hit chance, damage, and shock
    • A per-weapon checkbox enables adding skill value to damage and shock
    • Shock and damage account for attribute bonuses and the Killing Blow warrior ability
    • Click Full Warrior in Tweaks menu to activate Killing Blow
  • Support for Specialist and other Foci that allow rolling 3d6/4d6 on skill checks
  • Distribute XP through the party sheet
    • Assign percentage shares to henchmen, to support silver-as-XP (and custom XP values) for B/X-style play
  • Easily roll multiple saving throws from an Art, Spell, or weapon's chat card
  • GM Tools: quickly generate things from the GM Tables in WWN
    • Currently supports Nation, Government, Society, and History Construction. More will be added in the future
  • Roll Morale and Instinct checks with two clicks
    • Link appropriate Instinct tables from Compendium to NPC sheet to auto-roll when Instinct check is failed
  • Compendium includes weapons, armor, adventuring gear, arts, spells, and foci. Deluxe edition content is not included
    • Thanks to Gavin over at Necrotic Gnome, the Compendium now includes OSE spells and (some) monsters.


  • Add highest Dex mod when using Group Initiative


This Foundry VTT system requires the Worlds Wihtout Number rules, available through the Kickstarter or through sale at some point in the future.


This third party product is not affiliated with or approved by Sine Nomine Publishing.

Worlds Without Number is a trademark of Sine Nomine Publishing.


Old School Essentials spells and monsters used with permission under Open Game License, originally adapted from the greatest role playing game in the world.


Icons are from [Rexxard](

Available Versions

  1. Version 0.6.4

  2. Version 0.7.0

  3. Version 0.7.1

  4. Version 0.7.2

  5. Version 0.7.5

  6. Version 0.7.6

  7. Version 0.7.7

  8. Version 0.7.8

  9. Version 0.7.9

  10. Version 0.8.0

  11. Version 0.8.1

  12. Version 0.8.2

  13. Version 0.8.3

  14. Version 0.8.4

  15. Version 0.8.5

  16. Version 0.8.6

  17. Version 0.8.7

  18. Version 0.8.8

  19. Version 0.8.9

  20. Version 0.9.2

  21. Version 0.9.3

  22. Version 0.9.5

  23. Version 0.9.6

  24. Version 0.9.8

  25. Version v0.9.9