|Fill Empty Oxygen Tank at Compressor|
|Item Type||Quest Item|
|Crafting||This item cannot be crafted.|
|Notes||Allows the player to pass through flooded areas.|
It allows the player to enter any areas blocked by flooding, such as the Wreckage and Burned Cottage on the outskirts of the Swamp, as well as the underground tunnel in Village, which is necessary to visit to advance the story.
- Diving animations when entering flooded tunnels were only added in Alpha 9. Prior to that, the screen simply switched from one scenery to another.