OSRS ToB Calculator
Your purple chance in the Theatre of Blood for your team, deaths and MVP points in every mode, the raids a scythe takes and what a raid is worth.
Skipped counts the rooms a player sat out. Their deaths and skips are the rest of the team's together.
Your chance of each unique
One roll for the whole team, and the purple goes to one player drawn by points.
| Unique | A raid | On average | Half get it by | Sells for | Adds to a raid |
|---|
How long until it drops
Your deaths, side by side
Each death takes 4 points from you and the team. A teammate's death lowers the team's chance and everyone's loot, but not your own chance, which is your points over the most the team could score.
| Your deaths | Your points | Team purple | Your purple | 1 in | A raid is worth |
|---|
Every mode, side by side
The same team and deaths in each mode.
| Mode | Your purple | Common loot | A raid is worth |
|---|
The other rewards
Rolled for you alone, at these rates for a raid with no deaths. They fall when you play worse.
The common loot
| Item | A roll | You get | Sells for |
|---|
How lucky you have been
Points come from rooms, MVPs and deaths. Each player earns 3 points a room, the team shares 14 for the most damage on each boss, and a death costs 4. A deathless raid has a 1 in 9.1 chance of a purple at any team size, 1 in 7.7 in Hard Mode, and fewer points lower it. Loot is priced at what it sells for right now, after the 2% tax. A purple replaces the common loot for the player who gets it, and a raid's worth counts that. Lil' Zik, the kits, the dust and clue scrolls cannot be sold, so they are counted and never priced. Figures checked against the OSRS Wiki on 19 October 2026.
How the purple chance works
Every player earns 3 points for each of the six rooms they fight in. The team also shares 14 MVP points, given for the most damage on each boss: 2 each for the Maiden, Bloat and Xarpus, 1 each for the Nylocas and Sotetseg, and 2 for each of Verzik's three phases. A death takes 4 points away. A team of four with no deaths has 86 points, the most it can score.
At the end the game rolls once for the whole team: 1 in 9.1 when the team has every point it could, whatever its size, and less in step with the points lost. Hard Mode raises it to 1 in 7.7. The purple then goes to one player drawn by points, so the MVP is likeliest to get it, and a player's chance is the rate times their own points over the team's most. Entry Mode gives no purples.
Which unique you get
The avernic defender hilt is 8 in 19 in Normal Mode and 7 in 18 in Hard Mode; everything else is 2, and the scythe 1. A scythe is 1 purple in 19, 1 deathless raid in 172.9 for the whole team.
| Unique | Weight | Normal, 1 raid in | Hard weight | Hard Mode, 1 raid in |
|---|---|---|---|---|
| Avernic defender hilt | 8 | 21.6 | 7 | 19.8 |
| Ghrazi rapier | 2 | 86.5 | 2 | 69.3 |
| Sanguinesti staff | 2 | 86.5 | 2 | 69.3 |
| Justiciar faceguard | 2 | 86.5 | 2 | 69.3 |
| Justiciar chestguard | 2 | 86.5 | 2 | 69.3 |
| Justiciar legguards | 2 | 86.5 | 2 | 69.3 |
| Scythe of Vitur | 1 | 172.9 | 1 | 138.6 |
What the common loot is
A player without the purple gets three rolls of 29 items, and the same item can come twice. A vial of blood is twice as likely as anything else. How much you get falls with the team's points, so a death costs every player some loot, and it is a fifth of normal in Entry Mode, 15% more in Hard Mode and 30% more in Hard Mode finished inside the target time.
Hard Mode
Hard Mode has a better purple chance, a lighter hilt and more common loot. Finished inside the target time for the team size, it also rolls for a holy ornament kit (1 in 100), a sanguine ornament kit (1 in 150) and sanguine dust (1 in 275).
| Players | Target time |
|---|---|
| 1 | 1 hour 10 minutes |
| 2 | 35 minutes |
| 3 | 30 minutes |
| 4 | 27 minutes |
| 5 | 25 minutes |
ToB questions
Does a bigger team lower the chance? Not the team's: a deathless raid is 1 in 9.1 at any size. Your own share is smaller in a bigger team, and a raid is quicker.
How much does a death cost? 4 points from the team, and from you if it was yours. In a team of four that is about 4.7% of the purple chance, and the common loot falls with it. The deaths table shows it.
What about the other raids? The CoX calculator and the ToA calculator do the same for the Chambers of Xeric and the Tombs of Amascut.
Update history
Every change to this calculator
- Calculator added