GSC Game World released the “Expedition” update (version 1.7) for STALKER 2: Heart of Chornobyl, accompanied by a detailed showcase video on November 16, 2025. This update is the biggest free content drop for the open-world survival FPS, featuring both new gameplay modes and substantial quality-of-life improvements.
New Master Difficulty and Expedition Mode
The update introduces Master Difficulty, offering the ultimate challenge with harsher conditions and limited saves, perfect for veteran players seeking intense survival. Additionally, the new Expedition Mode applies hardcore save rules on any difficulty, catering to those wanting to test their skills with permadeath-style mechanics.
A-Life System Overhaul
The iconic A-Life system, which governs NPC behavior and territory control, has been upgraded. Factions (stalkers and mutants) can now expand control over new territories or lose lands if they fail to defend them. Various areas in the Zone, like checkpoints and lairs, are actively contested by dynamic NPC skirmishes, making the world feel more alive and reactive.
Smarter AI and Combat
Enemy vision and combat tactics have been refined for realism. NPCs now have impaired sight through vegetation, making stealth a more viable option. Hit accuracy drops when shooting through bushes, and enemies will retreat when realizing their situation is dire. These improvements make encounters feel fairer and more strategic.
Gameplay and Interface Improvements
The stamina system is reworked with a new running mode, adding tactical depth to movement. Players also gain access to more detailed inventory statistics, including protection levels, artifact info, and radiation balance, enhancing survival planning.
Several bugs affecting main missions, side quests, and open world events have been addressed, resulting in smoother overall gameplay and immersion.
PS5 Release and DualSense Features
Alongside the update, STALKER 2 launches on PlayStation 5 on November 20, 2025. The PS5 version leverages the platform’s capabilities, integrating haptic feedback, adaptive triggers, gyroscopic aiming, and immersive audio for a heightened experience.
Conclusion
Update 1.7 “Expedition” marks an important milestone for STALKER 2: Heart of Chornobyl, delivering a suite of challenging modes, AI improvements, and system overhauls that deepen player engagement in the Zone. The PS5 release brings these updates to more players, promising the most immersive and rewarding experience yet in GSC’s atmospheric survival universe.