Lost Alpha Wiki

Dark Valley(Lost Alpha) is a major location appearing in the S.T.A.L.K.E.R.: Lost Alpha standalone Mod.

Always gloomy, always misty and always rainy. Stalkers venturing into the Dark Valley are likely to find valuable artifacts, instant death, or both. A place frequented by some of the most experienced old-timers, though you may also stumble upon some common bandits. There's supposed to be an underground lab around there somewhere, so it might be worth to look for a hidden entrance along the way. No one has returned from there alive though and no one can tell for sure just what nasty surprises await you there.
- Encyclopedia description


  • This map has numerous changes compared to the retail release. It is now much larger with new content added.
  • The Bandit Base is still located on the north-west center of the map, south of the Forest map's entrance point.
  • A new Monolith Base has been added in on the east, with a small petrol station further up the road. This base builds upon the content seen in the Base Game and has many more buildings added with an altered access route to it all.
  • A junkyard has been added in to the south-east of the map.
  • An underground section has been added towards the north-east of the map.
  • There are two Anomaly Fields on the level with several other anomaly clusters dotted around the map. Some of these also spawn additional artifacts, but on an irregular basis.
  • The southern exit gate, which led to Cordon in the Base Game, now leads to Darkscape.
  • There are three transition points leading to the Garbage.


Bandit Base

  • A medium sized, Bandit controlled complex located at the top left hand corner of the map.
  • The player will need to come to find a password from the drunk bandit.

Dark Valley Underground

  • Small, underground bunker with an exposed entrance, located just to the east of the Bandit Base.
  • The player can find the Bandit jacket here in order to gain entrance to the Bandit Base.

Lab X18

  • Abandoned lab located underneath the Monolith Base.
  • The player will need to come here in order to find various Documents for Sin.

Monolith Base

  • Large sized complex controlled by Monolith, located on the right hand side of the map.
  • The player will need to come here with the password in order to gain access without fighting. It also contains the entrance to Lab X18.

Pig Farm

  • Small, Loner controlled farm located in the bottom left hand corner of the map.
  • The player will need to visit this location and talk to Oleg Gusarov in order to gain information on the password and bandit jacket.

Anomaly Fields

Notable Buildings

Anomaly Field Train-Car

  • A small train-car found inside the 2nd Anomaly field.
  • Contains various loot and artifacts inside and around the area.

Derelict Shacks

  • A pair of abandoned shacks located in between the Bandit Base and Dark Valley Underground.
  • Populated by various mutants.


(Refer to the Great Metal Factory for the previous storyline section).

First Visit:

Meet Petrenko's contact

  • Head to the bottom left hand corner of the map to the Pig Farm. The contact, Oleg Gusarov can be found at the back of the barn full of Loners. He tells the player they must gain entrance to the Monolith Base, however to do this they must first find a Bandit jacket and password. Once this has been done, entry can be achieved with relative ease with almost no combat.
  • Note: The bushes around the Pig Farm contain several Izloms, caution is advised.

Find and wear a bandit suit

  • The player from here must then run up to the top right hand corner of the map to find the exposed entrance to Dark Valley Underground. The hole itself is located at the start of a large gash in the earth, a short ways north from the Monolith Base.
  • Note: Several Pyrogeists and two Poltergeists patrol the entrance to the underground area. Boars are also known to wander around the area too.
  • Once the player has located the entrance, proceed down and inside to the underground.  Upon entering, the player will see a stash bag on the floor right in front of them. Take a right here and continue forward until another right turn is found. three dead Bandit bodies will be found lying in front of a destroyed generator with a large crack in the floor. Loot the body closest to the entrance to find the Bandit jacket and equip it. Once equipped, the player will then be prompted to head over to the Bandit Base to learn the password.
  • Note: When the player picks up the jacket, a Bloodsucker shall spawn just outside the room, be ready.

Get the bandit's password

  1. Find a gullible Bandit
  2. Get the password

1: Find a gullible Bandit:

  • Head into the base via the front gate and take a left to where the BTR-70 Armored Personnel Carrier sits. The Bandit in question can be found here, stumbling round the left hand portion of the base (often walking up the side between the brick building and the base's outer wall.
  • Note: If the Bandit jacket is removed, both the Bandits and Monolith factions will become hostile to the player again. It is advised to leave it on for the duration of the level.

2: Get the password:

  • Talk to him until eventually (and several more drinks later), he tells the player the password is "pizdec". From here proceed back out onto the main road and head south until a left turn is reached (with an abandoned lorry parked on the road).
  • Once walking a short distance, the player will find a small entrance with a Monolith member standing on guard, several others can also be seen to the left of him, meditating round a campfire. Talk to the guard to start the next part of the mission chain.

Meet Monolith informer

  • After speaking with the guard, the player will be prompted to speak to the Monolith Informant, owing to several debts in the man's past. Proceed to the top of the flight of stairs behind the guard, then take a right, over the sky-bridge then down the fire escape into the yard. Head into the double doors of the building directly in front of the fire escape, turn right and continue inside, taking another right into a large open room with 2 bunks on the left of the entrance. At the end of this room, take the stairs on the left up to the second floor, where upon the player will meet the informant and speak with him.

Retrieve information about X18

Find the encrypted journal:

  • Upon speaking with the informant, a distraction will be given so the player has access to critical information about X18. The player must then run back to where they first entered (with the guard) and head toward the stair case. Instead of walking down the stairs, go into the store room located to the right of them and search the desk sitting in the middle of the room just on the left. Underneath the desk in a small alcove are the documents, take them to start the next part of the mission chain.
  • Note: After picking up the documents, fifteen Military units will spawn in and around the area. Be prepared for a small fire fight (however the Monolith faction will more often than not wipe them out before the player has a chance)

Reach Darkscape

  1. Find a vehicle in the near vicinity.
  2. Avoid attacks and reach the gate to Darkscape.

*WARNING* In the current 1.3003., the Lada Niva Hospital Service supplied for this mission is almost unusable, easy to flip and will constantly be rolled over from helicopter attacks. it is advised to simply avoid it and head straight to the entrance of Darkscape on foot.

1: Find a vehicle in the near vicinity

  • After the Military has been dealt with, the player will have to head outside to the front of the building and round to the location marked on the map. As soon as the player has entered the Lada Niva, an MI-24 Helicopter will spawn and start to chase/attack the player.

2: Avoid attacks and reach the gate to Darkscape

  • The next part of this mission (at least in its current state) is very tricky. Drive out to the front of the complex and proceed right down the road to the abandoned lorry. Take the left hand turn this time, head over the bridge and continue down the road (avoiding any helicopter attacks and anomalies on the way). Once the player has driven through and busted open the gates, the next part of the main mission chain will begin.
  • Note: If the player did proceed on foot, then simply walk up the right hand corner of the gate and proceed through.

(Refer to Darkscape for the next part of the storyline section).

Second Visit (after Darkscape):

Find the bandits' documents

  1. Find another way out of the mines
  2. Get to Darkdolina
  3. Find the bandits' documents
  4. Take the documents to the sin leader.

3: Find the bandits' documents:

  • Upon returning to Dark Valley, the player must head back to the Bandit Base. The documents are held inside a safe behind Borov in his office. Re-equip the Bandit jacket and head to the base.
  • Note: The player can either kill Borov or talk to him (answering several questions) to acquire the safe code.
  • No matter what path the player chooses however the outcome is the same, both Bandit and Monolith factions will become hostile toward them.
  • After acquiring the documents, Veles will contact the player and give them the next part of the main mission chain, instructing them to head to X18 (located inside the Monolith Base).

4: Take the documents to the sin leader:

  • The player can either head back down to Darkscape or continue down to X18. It is advised to clear X18 first though.

Get file about experiments

This section refers to a different level in the game.
  1. Get to X18 Lab
  2. Find old PC with information
  3. Bring back the PC data to Veles.

1: Get to X18 Lab:

  • The player from here must head down to the Monolith Base and be prepared for a fight. Once the player has fought through the Monolith force, they proceed to the courtyard inside the base and find the shed leading to the lab.
  • Note: The lab is filled with many forms of mutant. The player should make sure to have their best armor and weapons equipped (Night vision if possible), plenty of Flashlights and proceed inside.

(Refer to X18 for the next part of the storyline section).

Side Missions

Notable Loot

Metal conveyor structure (next to Monolith Base):
Derelict car by lake:
The bandit supply room is located on the ground floor of the Bandit Base behind a door guarded by Friar. It contains several weapons, ammo, a bandit suit and various food and medical supplies.


  • Despite the initial mission to meet with Oleg Gusarov, there is no overwhelming urgency to do this and there are plenty of exploration opportunities in this level.
  • The mutant population is more diverse than that on other levels and gives rise to inter-species combat which can often be used to avoid unnecessary combat.
  • There are also plenty of anomalies to lure mutants into and also a pair of Anomaly Fields which deserve detailed investigation.
  • Of all the mutants, the Chimera, Pseudodogs, and perhaps Izloms are either best avoided or dealt with from range during early visits.
  • The Poltergeists and Pyrogeists come on duty at 22:00h.
  • Provided that the player does as suggested by Gusarov, even the Monolith Base may be explored without bloodshed up to the point that the player swipes the documents from the office.
  • Access to Lab X18 may also be attempted (if the code is known) although it is advised to remain clothed in a Bandit jacket until safely inside the lab. It may be beneficial to have such a suit modified for Night vision beforehand.
  • Taking the Lada Niva Hospital Service for an escape run to Darkscape will, of course, trigger the Heli attack.