Pyramid Plunder Calculator
Room requirements, per-container XP, and the real artefact weight tables from the server - including exact Pharaoh's sceptre odds and live Grand Exchange expected values for every urn, gold chest and sarcophagus. Artefact weights shift toward gold in deeper rooms.
| Room | Req | Urn XP (×18) | Chest/Sarc XP | Urn EV/search | Chest EV | Sarcophagus EV | EV / session |
|---|---|---|---|---|---|---|---|
| Room 1 | 21 | 396 | 792 | - | - | - | - |
| Room 2 | 31 | 504 | 1,008 | - | - | - | - |
| Room 3 | 41 | 630 | 1,260 | - | - | - | - |
| Room 4 | 51 | 756 | 1,512 | - | - | - | - |
| Room 5 | 61 | 900 | 1,800 | - | - | - | - |
| Room 6 | 71 | 1,044 | 2,088 | - | - | - | - |
| Room 7 | 81 | 1,170 | 2,340 | - | - | - | - |
| Room 8 | 91 | 1,350 | 2,700 | - | - | - | - |
item 9044 odds
Artefact weights (deepest unlocked room - bonus +0)
| Artefact | Base weight | Odds (urn) | Live price |
|---|---|---|---|
 item 9032 | 30 | 30.0% | - |
 item 9036 | 25 | 25.0% | - |
 item 9042 | 15 | 15.0% | - |
 item 9030 | 10 | 10.0% | - |
 item 9038 | 8 | 8.0% | - |
 item 9026 | 6 | 6.0% | - |
 item 9040 | 3 | 3.0% | - |
 item 9028 | 2 | 2.0% | - |
 item 9034 | 1 | 1.0% | - |
Verified against PyramidPlunderLoot/PyramidPlunderManager: urns roll with bonus = room index, chests roll room+2 and sarcophagi room+3; stone-tier weights gain +bonus and gold-tier +2×bonus. Urns pay 18×{22, 28, 35, 42, 50, 58, 65, 75} base Thieving XP by room; chests and sarcophagi grant double urn XP, and each door pick-lock grants the same XP as an urn. Blind-searching a fresh urn has a 20% snake chance (no loot) - checking for snakes reveals them and a snake charm lets you loot them anyway. Chests and sarcophagi loot every time (their 25% guardian roll spawns a scarab swarm but never eats the loot). Sceptre chances are exact.
Frequently asked questions
What Thieving level do I need for each Pyramid Plunder room?
Rooms gate at 21, 31, 41, 51, 61, 71, 81 and 91 Thieving. The calculator highlights your deepest unlocked room and shows the XP and loot for every room you can enter.
What are the Pharaoh's sceptre odds?
Exact server rates: 1/350 per urn search, 1/60 per gold chest, and 1/45 per sarcophagus. The calculator folds that chance into each container's expected GP value.
How does artefact loot work?
Each container rolls the artefact weight table with a room bonus - urns use your room number, chests get +2, sarcophagi get +3, and gold artefacts get a doubled bonus. Deeper rooms shift the odds toward stone and gold artefacts, which is why the sarcophagus in a deep room is worth so much more.
How much XP does Pyramid Plunder give here?
Base urn XP runs 22 to 75 depending on the room, then the server's 18× Thieving multiplier applies. Chests and sarcophagi grant double the urn XP for that room.