Trouble Brewing is a Member's only activity that can be played on the island of Mos Le'harmless with a tram of players. You must have completed Cabin Fever in order to access Mos Le'harmless and must have at least level 40 Cooking to play the activity. In addition, your inventory must be empty RS Gold , you can not being wearing anything in your Head slot, and you can not have any pets or Summoning familiars as well.
The objective of Trouble Brewing is to sabotage the opponent team's distillery and repair damages to your distillery while gathering rare ingredients and brewing rum. It may seem like a lot to do, but team work is key to winning the activity, and with good team work you can easily get the most out of Trouble Brewing.
In order to brew the rum, you must first gather and obtain a number of rare ingredients on the island. You will need to obtain Bitternuts, Sweetgrubs, Scrapeytree bark, Coloured water, Buckets of water and Wood.
If you're not brewing, then sabotaging is your job. In order to sabotage your opponents distillery, you must have a Tinderbox and a Torch. Use the tinderbox on the torch to light it, then use the lit torch on either the bamboo pump, hopper or bridge section to set it aflame.
On the opposite side of sabotaging is repairing. You can repair your distilleries damaged parts by using the appropriate of bridge section, lumber patch and bamboo pipe. In order to extinguish flames for your team, simply use a bucket of water on the flames. In addition, you can also pump the pressure lever and select 'Vent' to extinguish to put out all fires in your distillery.