Stalker 2 Update 1.5 Patch Notes for PC and Xbox – June 25, 2025

Stalker 2 update 1.5 is available to download on PC(Steam) and Xbox. According to the official Stalker 2 patch notes, the latest update transforms A-Life into a persistent system, adds new weapons and anomalies, improves AI behavior, and launches full mod support. Additionally, Stalker 2 patch 1.5 also includes numerous bug fixes and balance updates.

Stalker 2 1.5.0 Patch Notes – June 25, 2025

Patch 1.5 Highlights Summary

• A-Life Overhaul: NPCs now live and act in the Zone even off-screen.

• AI Improvements: Major fixes to mutant and NPC combat behavior.

• New Additions: Water Electric Tornado anomaly, Three-Line Rifle, and Kora handgun added.

• Gameplay Features: Looting of mutant parts and expanded armor upgrade info.

• Official Mod Support: Modding tools released via Zone Kit.

Patch 1.5 – Full Patch Notes

A-Life System Overhaul

Key Improvements

• Life in the Zone is simulated for all characters, regardless of player presence.

• Stalkers can be re-encountered, as they persist after initial meetings.

• More characters rest, explore, and interact, enhancing immersion.

• No immediate respawns in cleared mutant lairs or in the player’s visual proximity.

• Respawn locations are now pushed further from the player while maintaining Zone balance.

Visual Updates

• Increased visualization range for smoother character animations and weapon appearances.

• Reduced character “pop-in” effect for more seamless visuals.

New Content

Anomalies

• Added new anomaly: Water Electric Tornado.

Weapons

• Added new weapons:

  • Three-Line Rifle

  • Kora handgun

Mutants

• Mutant part looting is now available.

UI and Gameplay Features

• Armor upgrade tab now displays available artifact slots.

• Increased player stash window size.

• Added “Fix All” button in technician upgrade menu for mass repairs.

• Introduced reload renewal feature for all weapons.

• Fixed issue with “Take All” button becoming inactive in loot windows.

AI and Combat Enhancements

Mutants

• Fixed movement and attack bugs in Snork, Controller, Pseudogiant, Chimera, Rodents, and Burer.

• Improved mutants’ aggression logic when player is idle.

NPCs

• Introduced ballistic falloff for long-range NPC shooting.

• Fixed NPCs taking exposed cover and walking in place in safe zones.

Game Balance Changes

Weapons & Ammo

• Rebalanced machine gun and sniper rifle ammo types.

• Increased armor penetration for Grom S15 and AS Lavina.

• Supersonic ammo now causes less weapon durability loss.

• Reworked Cavalier weapon damage.

Artifacts

• Adjusted effects:

  • Horn: reduced chem/radio protection.

  • Rosin & Shell: endurance effects added.

  • New Durability effect increases equipped gear longevity.

• Fixed high sale value of common artifacts.

World & Stashes

• Updated stash markers and locations in Rostok and Yaniv regions.

• Replaced 7.62 ammo across the map.

Performance, Crashes & Bug Fixes

• Fixed major performance drops in Generators and Dead Valley areas.

• Resolved multiple crashes (e.g., vodka drinking, Xbox Series S near Chemical Plant).

• Fixed UI issues in inventory, upgrade tabs, and stash screens.

• Improved FPS during heavy NPC interactions and near interactable objects.

• Fixed bugs in visual/audio/UI elements including anomalies, ammo counters, and ultrawide FOV.

Quest & Mission Fixes

• Fixed mission blockers, softlocks, and progression halts across:

  • Legends of the Zone

  • Visions of Truth

  • The Road to the Foundation

  • A Long Overdue Visit

  • Dangerous Liaisons

  • The Sound of Music, Black Sheep, and others.

• Corrected duplicate rewards and active mission tracking bugs.

• Improved NPC consistency between encounters and mainline missions.

Mod Support

• Zone Kit released with full modding tools.

• Supports editing weapons, mechanics, animations, and more.

• Mods available via Steam Workshop and Mod.io.

Download Zone Kit

Other Improvements

• Enhanced NPC pathing, smoking animations, and gunshot sounds.

• Updated HUD for ammo switching, inventory sorting, and weapon descriptions.

• Improved 21:9 and 32:9 aspect ratio support.

• Added Auto Detect button for graphics settings.

• Reworked Ukrainian lip-sync for localization.

Recently, Stalker 2 update 1.4 added major AI improvements, combat enhancements, and bug fixes. NPCs use cover more effectively, communicate better in squads, and have finite grenades. Mutants now react more dynamically. Today’s Stalker 2 patch 1.5 will fix a few of these issues. Check out more details below.