Whiteout Survival
Proof in numbers.
Expected value, Monte Carlo, and ROI for Whiteout Survival. Reproducible calculators and analysis instead of vibes-based tier lists.
Events Reward optimization for time-limited events — EV / Monte Carlo
Twin Star Adventure — Dice Calculator
How many dice you actually need and which packs are worth buying — computed via Monte Carlo over the real board, including bonus tiles and lap effects.
Kasia's Wish House Mithril Calculator
Two-way engine for Kasia's Wish House: turn a budget into expected Mithril, or turn a Mithril target into the cheapest purchase plan. Monte Carlo, exhaustive pack search, server-age aware.
Point Simulator (shooter-scoring events)
For events where each attempt consumes c items and yields p points, with optional bonus triggers granting free attempts: computes the items you need to exceed a target with 95% confidence. Currently covers PK Battle (c=20, p=2).
Wander Theater Star Coin Calculator
Pick the items you want, get the required Charms, rounds, and cheapest payment plan. Milestone rewards from cumulative Charm use are folded into the coin requirement via iterative convergence.
Frozen Treasure Reverse Analyzer — Target Roses → Minimum Keystones
Given a target rose count, Monte-Carlo compares opening strategies (Open All / Red+Gold / Red Only / Hybrid) and returns the expected keystone cost with confidence intervals.
About this site
We don't aim for coverage. We only cover topics where numbers decide the answer. Each page is structured as: quantitative conclusion → assumptions (conservative baseline) → data → calculator. Values that depend on server age are disclosed at the top of each article.