|Release date||1 September 2016 (Update)|
|End date||30 September 2016 (Update)|
|Head developer||Unknown edit|
Players were able to participate in Crablet Plunder by clicking the Crablet Plunder icon on their ribbon or by speaking to Classie the Crablet by the Burthorpe lodestone. This would open the Crablet Plunder interface.
Every day the player had three choices out of five randomly generated experience options and bonuses. These could be experience in a single skill or, more rarely, an experience multiplier or a bundle of experience in up to four different skills.
After selecting three of the options the player had to press the "catch" button. They were then shown a break down of how much experience they would receive and in what skills it would be given. The player then had the choice to either choose a different set of boosts or to accept and receive the current reward.
Playing Crablet Plunder on consecutive days added an additional 5% experience for each day, up to a maximum of 5 days and 25% additional experience. Playing on a weekend (Saturday or Sunday) guaranteed the player at least one rare experience multiplier or skill bundle. Missing logging in any day would reset the bonus back to 5%. Missing Crablet Plunder on any day but having still logged in on that day would continue the bonus.
A crablet representing any of the skills would appear. The experience rewards were same for all skills, the base value being 1.5 times that of a small XP lamp in the respective skill. This was always boosted by at least 5% as that was the lowest possible multiplier from consecutive days of playing.
Different types of Crablets could be selected, if available, to boost the daily login bonus additively. Multiple Crablet types could be combined at once, but at most three upgrades could be selected; only two could be benefitted from at a time.
The following Crablet types were available:
Skill bundles yielded the same amount of experience as a single skill upgrades but compressed many skills into one slot.
The following skill bundles were available:
|Warrior Bundle||Attack, Strength, Defence and Constitution|
|Ward Bundle||Magic, Constitution, Defence and Ranged|
|Ironborn Bundle||Mining, Hunter and Smithing|
|Quartermaster Bundle||Fishing, Farming and Cooking|
|Timber Bundle||Firemaking, Fletching and Woodcutting|
|Mystic Bundle||Runecrafting, Prayer and Summoning|
|Rogue Bundle||Dungeoneering, Thieving and Slayer|
|Knowledge Bundle||Divination and Invention|
|Support Bundle||Construction, Agility and Herblore|