Dicey - mechanics comparator

Dicey is a powerful, on-device toolkit built for TTRPG designers and Game Masters who want to truly understand their dice mechanics. Go beyond simple rolling — Dicey's Monte Carlo simulation engine runs 20,000 iterations in the background to reveal probability distributions, percentiles, and success rates for even the most complex dice pools.
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Features
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* Comprehensive Dice Support: Roll standard polyhedral dice including d4, d6, d8, d10, d12, d20, and d100.
* Advanced Dice Mechanics: Exploding Dice, Automatically reroll 1s or reroll results below a custom threshold, Keep/Drop the highest or lowest 'N' dice from your pool.
* Success Conditions: Set complex target conditions such as "Sum meets/over target," "Sum below Target," or count occurrences of a specific face.
* Monte Carlo Simulation Engine: Runs up to 20,000 iterations in the background to instantly estimate average yields, standard deviations, and success probabilities.
* Visual Data & Comparison: Pit two configurations against each other in Opposed Roll mode to see win rates, victory margins, and head-to-head distributions at a glance — building each pool is as simple as tapping to focus a side, then tapping dice to add. Save any setup as a snapshot and overlay multiple distributions in the Compare tab to fine-tune your system's balance.
* Roll History: Keeps a detailed ledger of your recent rolls, including the exact mechanics used, success states, and modifiers.