Scavland Bunker & Red Keycard Guide

Q: Where is the subterranean bunker located in Scavland?

Subterranean Bunker Complex B-4 is located in northwestern Zalesye . Look for the concrete drainage trench and heavy steel blast door situated at the end of the overgrown rail line, or consult our [Zalesye Bunkers Map](/maps/).

Quick answerSubterranean Bunkers in Scavland represent the highest-risk, highest-yield extraction destinations in Zalesye. The primary fortified complex, Subterranean Bunker Sector B-4, is situated in the rugged northwestern forest sector of Zalesye behind a concrete surface trench and steel blast bulkhead (cross-reference our [Zalesye Bunkers Map](/maps/) or [Sector B-4 Complex Guide](/guide/scavland-sector-b4-bunker-complex/)). Accessing the inner military armory requires the rare Red Keycard swiped at the security console. Behind the vault door lies Tier-3 military hardware: hybrid optics, titanium muzzle attachments, heavy Kevlar armor plates, and classified transmitter documents. Bunker armory containers and high-tier military loot reset 3 hours after leaving them (or across the in-game 24-hour day-night cycle upon safehouse sleep). For related combat preparations, check our [Starter Loadouts Guide](/guide/scavland-starter-loadouts-and-budget-builds/), [Weapons Arsenal](/weapons/), or [Sleep & World Reset Guide](/guide/scavland-sleep-and-world-reset-guide/).

A heavy blast door inside a Soviet subterranean bunker requiring a Red Keycard scanner

Media: user-provided authorized asset pack · Official Steam announcements & community reports · Update 0.7.0. This image supports context, not every mechanic described on the page.

Field notes

Official Video Reference: Scavland How do you enter all the currently identified bunkers and secret bunkers?.. · Game Detox Dopamine

01 · Locate the Bunker B-4 Surface Entrance: Head into the northwestern Zalesye woods, following the overgrown railway spur toward the concrete drainage trench (verify coordinates on the [Zalesye Interactive Map](/maps/)). The entrance is marked by a reinforced blast doorway guarded by patrol sentries and irradiated puddles.
02 · Acquire the Red Keycard: The Red Keycard is a rare military security pass dropped by checkpoint commanders, found in hazardous radioactive zone airdrops, or awarded from Nadja's apex mutant extermination contracts. Store it in your safehouse stash until ready.
03 · Secure the Perimeter & Keycard Reader: Clear surface hostiles before descending the stairwell. Insert the Red Keycard into the glowing terminal reader; the mechanical vault door takes 15 seconds to cycle open while audible sirens sound.
04 · Clear Subterranean Corridors & Sweep Vault Lockers: Advance through narrow concrete choke points with close-quarters weapons. Loot military crates containing high-tier attachments, ammunition, and rare electronics.
05 · Understand Bunker Reset Cooldowns (3 Hours / 24-Hour Sleep): Under Update 0.6.0 and Update 0.7.0, subterranean bunkers reset 3 hours after leaving them. Alternatively, advancing the 24-hour day-night cycle by sleeping in a safehouse bed triggers world container refreshes, allowing scavengers to plan repeatable farming runs.
06 · Use the Emergency Ventilation Extract: Avoid backtracking through the alarmed main entrance corridor where roaming patrols congregate. Climb the rear emergency ventilation shaft to extract quietly back to the surface.

Evidence boundary

Bunker Location & Entrance	Sector B-4 subterranean complex in northwestern Zalesye, accessed via concrete trench entrance
Vault Access Requirement	Red Keycard with 3 entry charges swiped at electronic console
Military Loot Reset	Bunkers reset 3 hours after leaving them (Update 0.6.0), or refresh on 24-hour safehouse sleep cycle
Alarm & Defense Timer	Swiping keycard triggers a 15-second siren alert cycle that draws nearby sector hostiles
Emergency Extraction	Rear ventilation hatch enables direct escape to the outer surface forest
Verified Baseline	Official Steam announcements & community reports · Update 0.7.0

Questions players ask

Where is the subterranean bunker located in Scavland?

Subterranean Bunker Complex B-4 is located in northwestern Zalesye. Look for the concrete drainage trench and heavy steel blast door situated at the end of the overgrown rail line, or consult our [Zalesye Bunkers Map](/maps/).

How do bunker loot and crates respawn?

Under official mechanics introduced in Update 0.6.0 and stabilized in Update 0.7.0, bunkers reset 3 hours after leaving them. Additionally, sleeping in a safehouse bed advances the 24-hour world reset cycle, repopulating unlocked lockers and military crates.

Is the Red Keycard single-use or reusable?

In current builds, the Red Keycard possesses 3 durability charges, allowing 3 separate bunker vault entries before burning out.

What is the best weapon loadout for clearing subterranean bunkers?

Bring close-quarters shotguns with buckshot or high-penetration rifles along with a flashlight to handle dark narrow concrete corridors and sudden mutant ambushes.