Rock lobster
It wasn't a rock... It was a rock lobster!
Prepare for the hunt
Attack100
Strength100
Defence100
Ranged1
Hitpoints150Attack cycle: 2 game ticks (1.2 seconds). Special attacks and encounter phases can change the rhythm.
Where to find it
Appears through an encounter or a scripted spawn. No fixed location is recorded.
Drops and chances
Select a treasure to discover all its other sources.
| Item | Quantity | Loot roll | Drop chance |
|---|---|---|---|
 Crimson charm | 2 | Charm | 1 in 4.2023.8319% |
 Gold charm | 2 | Charm | 1 in 6.1016.3926% |
 Green charm | 2 | Charm | 1 in 11.148.9794% |
 Earth rune | 5 | Main | 1 in 244.1667% |
 Edible seaweed | 4 | Main | 1 in 244.1667% |
 Iron arrow | 2 to 17 | Main | 1 in 244.1667% |
 Lobster pot | 1 | Main | 1 in 244.1667% |
 Pure essence | 4 to 8 | Main | 1 in 244.1667% |
 Raw lobster | 1 | Main | 1 in 244.1667% |
 Seaweed | 4 | Main | 1 in 244.1667% |
 Steel arrow | 4 to 7 | Main | 1 in 244.1667% |
 Tinderbox | 1 | Main | 1 in 244.1667% |
 Water rune | 9 | Main | 1 in 244.1667% |
 Blue charm | 2 | Charm | 1 in 31.933.1323% |
 Air talisman | 1 | Main | 1 in 482.0833% |
 Body talisman | 1 | Main | 1 in 482.0833% |
 Cabbage seed | 1 | Main | 1 in 482.0833% |
 Coins | 355 | Main | 1 in 482.0833% |
 Cosmic talisman | 1 | Main | 1 in 482.0833% |
 Fire talisman | 1 | Main | 1 in 482.0833% |
 Grimy avantoe | 1 | Main | 1 in 482.0833% |
 Grimy cadantine | 1 | Main | 1 in 482.0833% |
 Grimy dwarf weed | 1 | Main | 1 in 482.0833% |
 Grimy guam | 1 | Main | 1 in 482.0833% |
 Grimy harralander | 1 | Main | 1 in 482.0833% |
 Grimy irit | 1 | Main | 1 in 482.0833% |
 Grimy kwuarm | 1 | Main | 1 in 482.0833% |
 Grimy lantadyme | 1 | Main | 1 in 482.0833% |
 Grimy marrentill | 1 | Main | 1 in 482.0833% |
 Grimy ranarr | 1 | Main | 1 in 482.0833% |
 Grimy tarromin | 1 | Main | 1 in 482.0833% |
 Onion seed | 1 | Main | 1 in 482.0833% |
 Potato seed | 1 | Main | 1 in 482.0833% |
 Snape grass | 1 | Main | 1 in 482.0833% |
 Soda ash | 1 | Main | 1 in 482.0833% |
 Tomato seed | 1 | Main | 1 in 482.0833% |
 Water talisman | 1 | Main | 1 in 482.0833% |
 Evil turnip seed | 1 to 3 | Main | 1 in 2400.4167% |
 Fremennik blade | 1 | Main | 1 in 2400.4167% |
 Watermelon seed | 1 to 3 | Main | 1 in 2400.4167% |
 Adamant javelin | 20 | Shared table | ConditionalRDT |
 Chaos talisman | 1 | Shared table | ConditionalRDT |
| Coins | 3,000 | Shared table | ConditionalRDT |
 Death rune | 45 | Shared table | ConditionalRDT |
 Dragon med helm | 1 | Shared table | ConditionalRDT |
 Dragon spear | 1 | Shared table | ConditionalRDT |
 Dragonstone | 1 | Shared table | ConditionalRDT |
 Law rune | 45 | Shared table | ConditionalRDT |
 Loop half of a key | 1 | Shared table | ConditionalRDT |
 Nature rune | 67 | Shared table | ConditionalRDT |
 Nature talisman | 1 | Shared table | ConditionalRDT |
 Rune 2h sword | 1 | Shared table | ConditionalRDT |
 Rune arrow | 42 | Shared table | ConditionalRDT |
 Rune battleaxe | 1 | Shared table | ConditionalRDT |
 Rune javelin | 5 | Shared table | ConditionalRDT |
 Rune kiteshield | 1 | Shared table | ConditionalRDT |
 Rune spear | 1 | Shared table | ConditionalRDT |
 Rune sq shield | 1 | Shared table | ConditionalRDT |
 Runite bar | 1 | Shared table | ConditionalRDT |
 Shield left half | 1 | Shared table | ConditionalRDT |
How to read these drop rates
These are the same Serenity loot rows shown on item pages. Main, charm and extra loot normally make separate rolls. When an encounter has a signature pre-roll, a signature reward replaces the common roll. Common-drop rates shown here include the chance of reaching that table. Empty slots are included in each pool's weights. A “1 in” rate is an average, not a guaranteed number of kills. Shared tables are conditional because additional rolls and equipment can affect their final chance. Scripts and encounter phases can award additional loot.