Grit System
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Tools


Pool Probability Calculator

See how pool size, exhaustion, and difficulty affect your odds.

Difficulty
Effective Pool: 4d6 Expected Net: Fumble:

Opposed Roll

Compare two pools head-to-head.

Difficulty
Attacker wins Tie Defender wins

Average excess when attacker wins:


Pool Builder

Enter two attributes to see your pool size and success chances.

7 + 6 = 13 4d6
Successes needed Probability
≥ 1
≥ 2
≥ 3
≥ 4
≥ 5

Combat Simulator

Estimate outcomes for a full attack exchange including weapon and armor.

Attacker
Defender
Difficulty
Attacker win chance
Average raw excess (on win)
Average exhaustion dealt
Hit blocked by armor
Armor degradation chance
Weapon degradation chance
Attacker fumble
Defender fumble