Key Locations and Named Doors
Navigating the flooded archipelago requires scavenging specific keys to access sealed survivor chambers, storehouses, and religious compounds. The Dressing Room Key opens the door to Jacqueline’s dressing room. The Dry Dock Key smells of machine oil and, for some reason, alcohol.
The Lodging House Key is an old, rust-covered key. You would rather not imagine how many hands passed through before ending up in yours. The Matthias key is a universal key that opens several locks on Matthias’s Island.
The Lilo cave key was left behind when Lilo set out for the lands where the Voice of the Depths is worshiped. The 
Key Blueprint appears as a crumpled piece of parchment with detailed ink drawings of a master key’s teeth and tumblers. A skilled locksmith could easily recreate the key using these measures.
Locked Doors, Padlocks, and Electrical Power
Survivors frequently confront access barriers marked as either a Locked door or a Padlock. At Throat Pier, a survivor note left by Keeper Lilo offers vital operational guidance for island barriers.
The note advises: “Always begin by servicing and starting the generator!” It explains that the generator supplies electrical power to all mechanisms, pumps, and locked doors. Without active power from local generators, specific mechanical doors cannot disengage their deadbolts.
Crafting Lockpicks at the Craft Table
When a specific brass key is unavailable, physical locks can be bypassed using crafted lockpicks. In the Craft table menu, players can craft baits, lockpicks, and upgrades for tools and weapons.
Selecting an item from the blueprint book displays the required resources on the console beneath the craft table surface. Hover over each ingredient in turn and press [LMB] to place them on the craft table one at a time. Once all the required crafting materials have been selected, hold [F] to craft the item.
A 
Crude Lockpick is a makeshift tool filed from scrap metal. This starter pick is rusty, brittle, and short-lived. A standard 
Lockpick is an iron tool made by someone who knows the craft. It remains reliable enough in skilled hands and is able to open most known locks.
A 
Master Lockpick represents a true work of thieving art forged from tempered alloy. It glides like silk, yet remains strong and reliable during lockpicking attempts.
Lockpicking Mechanics and Minigame
Operating a lockpick initiates an interactive minigame against tumbler mechanisms. Move your mouse to find the correct position for the lockpick. When the pick is in the right zone, the keyhole will glow.
Hold [D] to turn the lock and move your mouse to keep the pick in the correct position until it opens. The lockpick will break once its durability runs out.