Dice Prophet

**Know your odds before you roll — and invent dice nobody has rolled before.** Dice Prophet computes the exact probability of any dice combination — no simulations, no approximations — and shows it as a beautiful interactive graph. 🎨 **Built for custom dice.** Define any die you can imagine by listing its faces: 1,1,2,2,3,5 — duplicate faces, skipped numbers, even negative faces (-1,0,1). Mix custom dice with standard d4–d100 in one pool and see exactly how your invention behaves. 🧙 **Made for game designers and dungeon masters.** Balancing a homebrew weapon? Designing a board game's combat dice? Testing whether your special house-rule die breaks the game? Dice Prophet shows the true distribution of any mechanic before your players ever roll it — compare designs side by side and tune them with real numbers instead of gut feeling. 🎲 **Any rule you can think of:** exploding dice, rerolls, keep/drop the highest or lowest, success counting for dice pools, target numbers, cumulative "at least" odds. 🪜 **Chain steps without formulas:** roll a d6 and a d4, keep the highest, add another d4 — build any multi-stage mechanic step by step, no math notation needed. ⚔️ **Attack calculator:** d20 + bonus vs armor class with criticals — see real damage-per-attack including misses. 📊 **Compare builds:** overlay distributions (d12 vs 2d6?), check your chance to beat a target, see what you'll roll 90% of the time. ❤️ Works fully offline. No account needed. Phone and tablet layouts.