Oyster

Oyster is a free-to-play item, with a high alchemy value of 120 coins. At least 6 monsters drop it. The easiest is Crab (level 30, 1/10); the best rate is Mudskipper (level 33), at 30/128, about one every 4 kills.

“Maybe there are pearls inside?”

Free-to-playTradeable (not for Ironmen)High alch 120 gp

Updated 9 October 2026. Sources from the RuneScape Wiki's drop, shop and recipe data (CC BY-NC-SA 3.0), checked 2026-10-09. Item sprite © Jagex.

Ironman verdict

You can also make it yourself: it takes 16 Fishing and gives 10 Fishing XP. Other sources include Granite crab, Panning tray (full), Uncharted Isles and Swarm, plus 1 more listed below. Reaching level 16 Fishing takes 2,746 XP in total; the Fishing calculator counts the actions and materials to any target, and the Fishing guide has the Ironman training route. The Ironman route brings it up at Beneath Cursed Tides. It also comes from the Giant Oyster (monthly) routine. Oyster is available on free-to-play worlds too. It is tradeable on normal accounts, but an Ironman cannot use the Grand Exchange or trade for it, so the sources on this page are the whole list. High Alchemy turns one into 120 coins.

At a glance

Members: No (free-to-play)
Tradeable: Yes, but not for Ironmen
High alch: 120 coins
Monster drops: 6
Shops: None
Recipes: 1
Used in: Nothing

Monster drops

Dropped by	Level	Quantity	Rarity
Mudskipper	33	1	30/128
CrabEasiest	30	2	1/10
Giant lobster	40	2	12/128
Rock crab	47	2	12/128
Mogre	45	1	3/128
Juvenile boulder crab	-	1	3/128

Best rates first, plus the lowest-level monsters that drop it. Every monster links to its full drop table in the bestiary.

Make it yourself

Needs 16 Fishing · 10 Fishing XP

Tools: Big fishing net. Where: Fishing_spot_(big_fishing_net,_harpoon)#Net.

Other sources

Minigames, reward chests, clues, skilling and other non-combat sources.

Where it fits for an Ironman

Ironman route steps

Beneath Cursed Tides · Part 2: Opening the map

Dailies and weeklies

Giant Oyster · Monthly

Minigames and places

Fish Flingers · reward
Fishing Trawler · reward