About

A free simulator for WoW Forever that runs in your browser. One person's project, no company behind it.

How the numbers are made

The engine is a fork of the open-source WoWSims simulator for WoW Forever, extended to simulate any level from 1 to 60, compiled to WebAssembly. It downloads once (about 5 MB) and every sim runs on your machine. Nothing you paste is sent anywhere.
The game data comes from the client files of build 1.60.1.70707: spells, talents, items, the Legacy trees and how their points are earned. Hotfixes that are not in the files are applied where known.
Stat weights are made by simulating the character many times with one stat nudged, and reading the damage change. The precomputed pages use the leveling gear and talents of each level; the Character page uses yours.
Legacy hours count grinding mobs of your level: kill, rest, walk to the next. Quests and travel are left out. Rested experience follows Classic rules, which the Forever files do not restate.

Your own Mark of the Wild is the only buff. No consumables, no group.
Fights are against one mob of your level (or a dungeon boss three levels higher), in the form you pick, with a fixed rotation per form.
Talents that add no damage are not scored: survival, crowd control and healing show as such, not as zero.
Numbers have not yet been checked against fights in the live game. That check happens when the game opens; corrections will be listed here.

Open an issue on the engine repository: the item, level and what you expected. Accuracy is the whole point of the site.