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

Team purple chance
Your purple chance

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

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💜 The Fractured Archive — Purple Rates
Unofficial theorycraft • One purple max per raid

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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. 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.