Stalker 2 walkthrough: How to complete The Lost Boys quest

The Lost Boys is a side mission in Stalker 2, the latest entry in the survival horror franchise helmed by GSC Game World. The game is focused on Skif's attempts to navigate the mysterious anomalies of the Chernobyl exclusion zone. The Lost Boys side quest is one of the earliest side missions you can tackle after the prologue. It involves an important decision that affects the nature of its conclusion.

This quest focuses on the disappearance of a group of diggers. Here is a walkthrough on completing the Lost Boys quest in Stalker 2.

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How to complete the Lost Boys quest in Stalker 2

Note: You'll need to have at least one spare medkit saved, as you'll need to give it to a wounded in the quest

Start the quest

A still from Stalker 2 (Image via GSC Game World)

Head to Zalissya and talk with Lens. He will talk to you about a group of diggers who went missing. When he completes giving a rundown of the situation, agree to find them — this will begin The Lost Boys mission in Stalker 2.

Last known location

Follow the Lost Boys quest marker until you reach a small shelter with an open door. This is where the group of diggers was last seen. Enter the building and head down the stairs into a bunker. While there are no enemies here, there will be plentiful anomalies.

When you enter the bunker, turn left, and do the same again to descend into a narrow walkway leading to a corpse. You'll find a small device on the ground beside them. Pick it up to start connecting the pieces about the missing diggers in The Lost Boys quest.

Follow through the main northern pathway until you find a TOZ 34 shotgun and a bag lying on the ground. Loot the bag to find food, bandages, ammo, and a fuse. Next, head to the room left to the bag. Here, you'll find a fuse box. Attach the fuse and then follow through the main pathway again. The fuse will be a secret tool that'll help us later.

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Anomalies

A still from Stalker 2 (Image via GSC Game World)

You'll reach a room filled with electrical anomalies. Toss the screws into the anomalies to temporarily disable them, allowing you to run past them. Keep doing this until you reach the subsequent room. The next room will feature a group of rats and a transparent anomaly inside it. Toss a screw into the anomaly to make it expand, causing a majority of rats to be killed. You can finish the rest with your bullets.

While doing this, you'll hear someone scream from the opposite end of the room. Rush over them and use a medkit to heal them. He will reveal himself to be Max Saturday. Speak with him to understand what happened to the diggers. He will say that a monolithian ambushed and killed their group and their only surviving member, Mastiff, was kidnapped by him. Agree to find Mastiff, and he will mark where the monolithian took him.

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Secret room

Rush to the lever behind Max to open up an exit. Before exiting, however, go back to the entrance of the bunker. Retrace your steps to the corpse and you'll find a newly opened room. Inside the room, you'll find a bag, healing items ammunition, food, and an aurora gas mask. Make your way back to the exit of the bunker. The exit will again be filled with electrical anomalies. Toss your screws to run past them.

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Find Mastiff

The monolithian took Mastiff southeast of the bunker. Your journey will end with a lone house surrounded by forest, tombstones, and skulls. When you try to open the front door, you'll be attacked by a group of blind dogs. Deal with them to progress the quest. Go behind the house to find a shed locked down. Use your knife to break the padlock. When you enter, you'll come across a cave entrance, leading to an underground tunnel.

Follow the tunnel until you're inside the house. Enter the next room to find a wounded Mastiff. The wall to the left will have a ladder leading to the attic. Take it up to confront the monolithian.

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The monolithian

The monolithian will reveal his name to be The Ninth. Question him about the encounter in the bunker and Mastiff. Ninth claims that he saved Mastiff after a mutant wiped off his group. However, you should not attack him yet, as you will get another chance to decide. You should instead tell Ninth that you're there to help.

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The choice

A still from Stalker 2 (Image via GSC Game World)

Head outside to find a group of people headed by Dew. His group also wants to put an end to The Ninth. Say that you're there for Mastiff and then select the "I Got It" option. From here, you'll get three choices: Side with Mastiff, Side with Monolithian, or do not get involved.

Side with Mastiff and you can team up with Dew to defeat the Ninth. Siding with the Ninth will have you kill Dew and his group, leaving Mastiff to suffer at the hands of the monolithian.

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Return to Lens

A still from Stalker 2 (Image via GSC Game World)

Speak with Lens, detailing to him everything that occurred within the Lost Boys mission in Stalker 2. If you've saved Mastiff, he will thank you and reward you with 1,000 credits.