The Flamtaer bag is a bag that can store supplies used in the Shades of Mort'ton minigame. It is obtained from any chest (except bronze) in the Shade Catacombs. Players can only own one Flamtaer bag at any given time.
The Flamtaer bag is able to store up to 60 timber beams, 60 limestone bricks and 500 swamp paste.
On death, the Flamtaer bag is lost along with its contents.
- Despite the newspost introducing the Flamtaer bag, which stated that it could store either timber beams or wooden planks, players are unable to store wooden planks in it. Attempting to do so results in a message in the player's chatbox, saying, "The bag takes timber beams, not planks."