We Need To Go Deeper -

You must leave the sub to explore caves for treasure. Stay together; if a Manowar attaches to your head, you need a teammate to remove it or you will die.

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To keep your sub afloat, the crew must manage several critical tasks: You must leave the sub to explore caves for treasure

If you are looking for the active item, it is a tool used for floor manipulation. Function: Spawns a trapdoor to skip to the next floor. Recharge: Requires 6 rooms to fully charge. We Need To Go Deeper