The Daggerheart duality dice roller

The duality dice roller rolls Hope and Fear as real 3D dice that scatter across the page — then reads the result the way the rules do.

The five outcomes

Give it a Difficulty and it names which outcome you got, rather than leaving you to work it out:

Outcome	What happens
Critical Success	Matching dice. Automatic success with a bonus, gain a Hope, clear a Stress. Critical damage on an attack.
Success with Hope	You succeed and gain a Hope.
Success with Fear	You succeed with a cost, and the GM gains a Fear.
Failure with Hope	You fail with a minor consequence and gain a Hope.
Failure with Fear	You fail with a major consequence and the GM gains a Fear.

A Critical counts as a roll “with Hope”, so it never hands the GM a Fear even though neither die is higher.

Modifiers, advantage and Experiences

Modifier takes your trait, an Experience, or anything else flat.
Advantage adds a d6 to the total; disadvantage rolls a d6 and subtracts it. Neither is an extra Duality Die, so neither ever changes which of Hope or Fear rolled higher.
Evasion is there for the GM’s side: an adversary’s attack is a d20 plus its Attack Modifier against a PC’s Evasion.

Other dice

Switch to Other dice for everything that isn’t an action roll — weapon and spell damage, the d4 of Fear on a short rest, a lone d6, someone’s d20. Add dice from d4 to d100, set a modifier, and it totals the pool.

It moves the trackers

Roll here and the Fear pool beside it fills on any roll with Fear, and every countdown on the page advances by what that outcome dictates. That’s the part most rollers leave to you.

What an account adds

The roller is complete without one. A PostRoll account adds persistence: saved roll history, the Dice Lab’s luck and fairness statistics across every roll you’ve made, custom dice sets, and rolling into a shared game log with your table.