update · October 28, 2025
Stellaris v4.1.7 Open Beta Lands With Modifier Overhaul and AI Tweaks
Stellaris version 4.1.7 enters public testing on Steam with a foundational modifier system rewrite, several cybernetic ascension fixes, and balance adjustments for specific origins. The build carries checksum ad13 and acts as a precursor to upcoming tick-speed optimizations.
The Stellaris team has released the v4.1.7 Open Beta on Steam, bringing forward a technical rewrite alongside targeted gameplay tweaks. Available via the stellaris_test branch under checksum ad13, this update introduces an early overhaul of the modifier dependency system initially slated for the 4.2 cycle. Developers note that while performance gains in this build are small, the under-the-hood structural work sets the stage for future tick-speed improvements.
Ascension and Trait Adjustments
Cybernetic ascension receives multiple corrections, including fixes for species assimilation handling and leader trait updates. The Cybernetic and Cyber Commando traits now grant species permission to inhabit machine worlds outside of driven assimilator empires. Additionally, the Cradle of Souls chosen trait drops from a +750%/+500% bonus down to +30%/+15% Political Power when assigned as a planet or sector governor.
Origin and Government Tweaks
Several empire types and origins see structural corrections to prevent unintended interactions. The Hard Reset origin and Tankbound civic are now mutually exclusive due to conflicting mechanics, while players can no longer select the Hegemon origin while running an Egalitarian ethic. The Opus core world for the Hard Reset origin is standardized to size 25, and the Visionary job swap now combines Science Directors and Merchants for politicians.
General Bug Fixes and Quality of Life
The patch resolves event and UI discrepancies, such as fixing galaxy-wide hunger strikes among species and ensuring the Prethoryn properly infest worlds after purging pops. The Extradimensional Experimentation planetary decision now increases physicist output while adding zro upkeep. Modders also gain a new soft_traits parameter for origins, allowing government-valid removal of starting traits.
Why this patch matters
Version 4.1.7 focuses on cleaning up cybernetic ascension bugs and laying structural groundwork for future performance updates, making it a test branch for save stability.