Old School RuneScape · Raids
The Fractured Archive drop rates
Your chance at each unique for any team size, contribution and number of deaths.
Rates from Jagex, 3 Nov 2026
Read the newspost ↗
Read the newspost ↗
Average raids
Raids for 50% chance
Raids for 90% chance
Uniques
| Item | Weight | Team, per raid | You, per raid |
|---|
By team size
Even split, no deaths| Players | Team purple | Your purple |
|---|
Other rare drops
Independent of team size and contributionOrion (pet)1/750
Elite clue scroll1/10
Base rate; improved by Elite Combat Achievement rewards.
Rock Golem1/68,120
From mining Ascension rocks in the lobby.
Orion and clue rolls are skipped if your loot is a cabbage.
How loot works
- One purple roll per raid. The team has a 1/14 chance at a unique in a duo. Each player beyond two adds 4% of that rate (3 players +4%, 5 players +12%, 8 players +24%). Bosses scale to at least two players, so solo uses the duo rate.
- Whose name it's in. Each of the five rooms is worth 100 contribution, split by damage dealt; Ocellus is worth 300. Total: 700. Your share of the total is your share of the purple.
- Deaths. Each death takes away 10% of your expected contribution. In a duo that is 35 of your 350.
- Unique table. Rondache 5/15, Zorya's tome 4/15, Horn of Bran 3/15, Ascension crossbows 2/15, Obligator 1/15.
Jagex says these numbers will be tweaked in next week's update. The newspost doesn't say how deducted contribution is handled, so by default this calculator keeps the team chance the same and only changes whose name the purple is in. Results over many raids assume each raid is independent.