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Collection Log

OSRS Collection Log / RNG

Vorkath · 0 KC

0

Boss

Kill count

Math is independent 1/N rolls — the usual unique table. This does not say you are lucky or unlucky as a person. It reports P(X) under that model.

Vorkath's head 1/50

Obtained

P(at least 1)

0.0%

Expected

0.00

P(0)

100.0%

Dry percentile

1.0

Dragonbone necklace 1/1000

Obtained

P(at least 1)

0.0%

Expected

0.00

P(0)

100.0%

Dry percentile

1.0

Draconic visage 1/5000

Obtained

P(at least 1)

0.0%

Expected

0.00

P(0)

100.0%

Dry percentile

1.0

Skeletal visage 1/5000

Obtained

P(at least 1)

0.0%

Expected

0.00

P(0)

100.0%

Dry percentile

1.0

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Learn more

How it works

Enter a 1/N rate and kill count, or pick a modelled boss unique. The math is the existing binomial engine.

Important mechanics

Dry percentile is P(X ≤ obtained) under that model. It is not a personality score.

Frequently asked

Can I use this for ToA uniques?

Not as a 1/N unique. Use the raid calculator for ToA / CoX / ToB.

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