ByYurii LuzhkoUpdated October 27, 2026

How to Open the Golden Door in Sons of the Forest

Game files, client build 539517 min read

The golden door, deep in the Luxury Bunker, opens only when you carry or wear the Ancient Armor after plating it with 12 Solafite Ore in a Gold Armor Plater, whose blueprint lies beside the door. No keycard opens the door itself.

Opens withAncient Armorplated; carried or worn
Solafite Ore12the plater's slots; 12 placed in the world
Keycards on the way2Maintenance, then Guest
The doorx 1597, y 485167 m in from the Luxury entrance

Read straight from the game's files: the door object, the item it checks, the plater, and every keycard door between you and it. Each step links its map pin.

On this page

The route, step by step

Numbers on the map match the steps. Tick each step off as you go; the ticks stay in your browser. Step 1 does not depend on steps 2-5, so take the Ancient Armor whenever you are near Cave D.

Sons of the Forest island map with the five places on the way to the golden door numbered and the Solafite Ore pickups dotted — Each number opens the full map on that marker. Positions are the game's scene coordinates; all five pins are inside caves or bunkers, under the ground.

Take the Ancient Armor in Cave DCave D
It is the one Ancient Armor pickup in the game, on a posed skeleton deep in Cave D (x 186, y -669). The cave's entrances are on the caves map; the armor page has what the armor does.
Open the armor's pin
Game screenshot of the Ancient Armor's spot (th.gl map project).th.gl Sons of the Forest map · MIT
Get the Maintenance Keycard in Maintenance Bunker ABunker A
The keycard lies inside Maintenance Bunker A (x -428, y 699). The bunker's hatch sits under 12 dig holes in the files, so dig it out; the shovel guide says where the shovel is.
Open the keycard's pin
Get the Guest Keycard in the Entertainment BunkerEntertainment
The Entertainment Bunker's entrance door takes the Maintenance Keycard; its Guest Keycard lies at x -1184, y 42. All bunkers are on the bunker map.
Open the keycard's pin
Use the PC in the Residential Bunker's security roomResidential
Both security doors of the Residential Bunker take the Guest Keycard. Its security-room PC (x 1192, y -626) is the switch for the Luxury Bunker's entrance door: in the files it sets that door's state.
Open the bunker's pin
Go through the Luxury Bunker to the door; take the plater blueprintLuxury
Enter the Luxury Bunker at the Final Bunker pin. The golden door is 167 m further in (straight line) and 19 m lower than the entrance door, about 87 m under the ground. The Gold Armor Plater blueprint lies 2.1 m from the door: pick it up, it unlocks the plater.
Open the door's pin
The golden door, game screenshot (th.gl map project).th.gl Sons of the Forest map · MIT
The Gold Armor Plater blueprint's spot by the door, game screenshot (th.gl map project).th.gl Sons of the Forest map · MIT
6
Collect 12 Solafite Ore and the plater's materials12 ore
The world places exactly 12 Solafite Ore pickups (blue dots on the map). The plater itself costs 24 Stone, 33 Bone, 1 Skull, 4 Golf Cart Battery, 4 Wire.
Show the ore on the map
- 12 Solafite Ore
- 24 Stone
- 33 Bone
- 1 Skull
- 4 Golf Cart Battery
- 4 Wire
Build the Gold Armor Plater and plate the Ancient ArmorPlater
Place the armor and load the 12 ore. The plater accepts no other item: in the files its only valid item is the Ancient Armor.
Crafting page
Go back to the golden door and open itDoor
With the plated Ancient Armor in your inventory or worn, use the door. Behind it the scene goes on into the Hell Cave; the endings guide covers what follows.
Open the door's pin

0/8 Golden door checklist done

What the door checks

The door is a scene object of the Luxury Bunker (its save id is LuxuryBunker.HellDoorCaveEntrance). Three things in the files decide whether it opens, and none of them is a keycard.

Check	What the files say
The item	Item 572, the Ancient Armor (loc key GOLDEN_ARMOUR). The door's "Open" prompt is set to need it.
Carried or worn	Both count: the door's code looks in your inventory first, then at the clothing you wear, and the prompt is flagged "item can be worn".
Plated	Owning it is not enough. The code then checks that the armor is plated, and only a plated one opens the door.

Unplated armor

With an unplated Ancient Armor the door runs its fail branch. Timmy, who waits at the door, has lines filed as the door's "no" and "yes" in the subtitles: "No, we're missing something." and "It's working!"

"Golden door" is the game's name too

The game's warning for early-access saves says: "The Gold door and all hell cave progress has been reset". In the scene the door is the Hell Cave's entrance.

Plating the Ancient Armor

The Gold Armor Plater is a buildable you unlock with its blueprint, the one lying beside the golden door; it is not unlocked at the start. Its 12 ore slots hold Solafite Ore, and it plates only the Ancient Armor.

The world places exactly 12 Solafite Ore pickups, the 12 the plater needs. The caves also hold Solafite rock (objects named SolafiteResource: 290 in Cave D, 189 past the golden door); the files we read do not say what breaks it, so the pickaxe page is the place to check.

Gold Armor Plater: what it costs to build

Material	Count
Stone	24
Bone	33
Skull	1
Golf Cart Battery	4
Wire	4

Every placed Solafite Ore pickup (12; pickups under a metre apart share a row)

Where	Coordinates	Ore	Map
Surface	x -1126, y -1627	1	Show
Surface	x -772, y -1487	2	Show
Surface	x 937, y 538	1	Show
Residential Bunker	x 1150, y -602	1	Show
Surface	x 1454, y 739	1	Show
Surface	x 1694, y 1039	2	Show
Surface	x 1707, y 1010	1	Show
Surface	x 1821, y -498	1	Show
Surface	x 1829, y -478	2	Show

Keycards on the way, and why not the VIP Keycard

Every security door in the bunker scenes names the keycard it takes. The two on this route: the Entertainment Bunker's entrance takes the Maintenance Keycard, the Residential Bunker's doors take the Guest Keycard. There is a second Guest Keycard inside the Residential Bunker itself (x 1141, y -613), but it does not get you in.

The Luxury Bunker's entrance door names the VIP Keycard, but nothing at that door uses it: its trigger has no use point wired, its working card reader is switched off and a reader named CardReaderBroken is switched on. The same door state is set by the Residential Bunker's PC. The VIP Keycard (x -978, y 1039) opens the Food & Dining Bunker's dining door.

Security doors in the bunker scenes and what opens them

Bunker	Door	Opens with
Entertainment Bunker	computer room door	Guest Keycard
Entertainment Bunker	entrance door	Maintenance Keycard
Entertainment Bunker	exit door	Guest Keycard
Food & Dining Bunker	entrance door	Maintenance Keycard
Food & Dining Bunker	dining door	VIP Keycard
Residential Bunker	entrance door	Guest Keycard
Residential Bunker	exit door	Guest Keycard
Residential Bunker	security-room PC (Luxury entrance)	using the PC
Luxury Bunker	entrance door	VIP Keycard named, not usable (see above)

Where the golden door is

The door stands at x 1597, y 485 on the map, in the Luxury Bunker's scene: 167 m from the bunker's entrance door (x 1749, y 554) in a straight line and 19 m lower, about 87 m under the terrain. The map's Hell Cave Entrance pin is the same spot. The files hold the two ends, not the tunnel between them, so the distance is a straight line, not the walk.

Three game screenshots: the golden door in a cave wall, the Ancient Armor on a skeleton in Cave D, and the plater blueprint's spot on a cave floor — Game screenshots (th.gl map project): the golden door, the Ancient Armor in Cave D, the plater blueprint beside the door.th.gl Sons of the Forest map · MIT

What the files do not tell us

We only print what the files hold. These are the gaps:

The way through each bunker and from the Luxury entrance to the door: the files give positions, not corridors, so distances here are straight lines.
Whether the Entertainment Bunker's Guest Keycard lies behind its Maintenance-keyed door or before it.
What tool breaks the Solafite rock in the caves.
Whether the door takes the Ancient Armor from you or lets you keep it; we did not find that in the door's code.

FAQ

How do you open the golden door in Sons of the Forest?

Bring the Ancient Armor, plated with 12 Solafite Ore in a Gold Armor Plater, to the door, in your inventory or worn. The game checks for that item and that it is plated; nothing else opens the door.

Where is the golden door?

Deep in the Luxury Bunker, at x 1597, y 485 on the map (the Hell Cave Entrance pin): 167 m in from the bunker's entrance door in a straight line and 19 m lower.

Do you need a keycard for the golden door?

Not for the door itself. To reach it you need the Maintenance Keycard (opens the Entertainment Bunker, where the Guest Keycard is) and the Guest Keycard (opens the Residential Bunker, whose security-room PC unlocks the Luxury Bunker). The VIP Keycard is not on this route.

Do I have to wear the Ancient Armor?

No. The door's code accepts the armor in your inventory or worn; it must be plated either way.

Why won't the golden door open?

Most likely the Ancient Armor is not plated: owning it is not enough. Plate it in the Gold Armor Plater with 12 Solafite Ore; the plater's blueprint lies 2.1 m from the door.

How much Solafite Ore do you need?

12. The plater has 12 ore slots, and the world places exactly 12 Solafite Ore pickups.

Pages to keep open

Sources

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