FatePool Odds Desk

FatePool Odds Desk is a hands-on probability and randomizer-balance studio for board-game designers, playtesters, rules tinkerers, and heavy-euro hobbyists who need hard numbers before a prototype hits the table. Stop arguing over whether a dice pool “feels fair.” Open a seeded randomizer, lock faces, card counts, bag tokens, and success rules, then see exact or Monte Carlo distributions with swing and fail-chance readouts. A/B compare variant curves and freeze a shareable balance brief your whole design group can trust. WORKBENCH OF SEED SYSTEMS Browse ready-to-duplicate projects—Iron Spire 2d12+skill, Lantern Bag seasons, Crown Deck intrigue suits, Ember Tokens push-your-luck, Tide Dice exploding d6—and clone any seed into an editable sandbox. Every sample is an original fictional engine with no commercial rule text. DICE POOLS WITH FULL CONTROL Build pools with custom face counts, modifiers, success thresholds, exploding and reroll toggles, and keep-highest or keep-lowest rules. Render full outcome histograms and cumulative chance tables so every crit, bust, and average score is visible—not vibes. DECKS AND HYPERGEOMETRIC MATH Configure finite decks and answer multi-card hand questions with exact probabilities: suit thresholds, at-least-N hits, and draw odds that stay honest as the deck thins. BAG-BUILDING COMPOSITIONS Mix token sets by color and rarity, model reshuffle-on-empty, and scrub pull counts to watch composition drift across sequential draws. Spot when a bag gets too generous or too punishing before playtest night. COMPARE ARENA Drop two variants side by side. Overlaid Charts curves, delta callouts on mean, variance, and fail chance, plus a verdict chip for safer vs swingier keep balance debates concrete. RISK METERS AND BALANCE BRIEFS Tune meters that surface bust chance, crit chance, expected value, and score spread. Freeze a Balance Brief with locked parameters, key percentiles, and curve snapshots, then share it through the system share sheet. BUILT FOR REAL DESIGN SESSIONS Save unlimited local projects with named variants (SwiftData). Pin a favorite curve to a Home Screen widget for quick reference. Open the in-app How Math Works primer to see when exact math or simulation is used—so you always know what the numbers mean. Ship balanced randomizers instead of guessing at the table.