The Fractured Archive
Purple Chance Calculator · Unofficial theorycrafting model, not confirmed OSRS drop mechanics
Scoring model
Encounter scoring
Purple drop settings
Death penalties
Your contribution
Estimated purple rates
Points breakdown
Purple rates across team sizes
Each team size uses the selected route and model with the same number of total raid deaths. Bars are scaled relative to the highest chance shown.
| Players | DPS bonus | Team pts | Purple % | 1 in X |
|---|
Model: 8 scoring encounters (opening boss, 3 selected bosses, 4 final phases). One purple maximum per raid. Flat completion and point-based chances are independent. Fixed mode scales the deathless purple chance by retained team points divided by maximum possible points. Contribution mode uses route-specific encounter HP, including estimates for unknown values and optional additional NPC damage, or per-player damage; deaths reduce personal points multiplicatively. MVPs award flat points. These are hypothetical mechanics, not official drop rates.