update · June 25, 2026

Stellaris 4.4.5 'Pegasus' Open Beta Patch Notes

Stellaris version 4.4.5 'Pegasus' opens for testing with a new Resource Abundance slider, overhauled Operational Reserves, and numerous fixes.

Stellaris version 4.4.5 'Pegasus' hits the stellaris_test branch for an early weekend open beta, bringing economic sliders, Operational Reserves revisions, and dozens of bug corrections.

Customization and Exploration

Galaxy settings gain a Resource Abundance slider scaling from Scarce to x5 with a default of x2. Waystation Voidlure modules and an Arkship Voidlure Array let players right-click systems to attract space fauna, which now disable waystations temporarily instead of destroying them.

Operational Reserves

Operational Reserves track Energy and Minerals at a 1:1 ratio rather than 3:1, with maximum caps scaling by owned Arkship count and tier. A new Critical reserve stage applies heavy research, Unity, and Alloy penalties, alongside debuffs for Lithoid and machine populations.

Interface and Quality of Life

Detailed map modes cycle through Normal, Detailed, and Hidden states. Logistic Ship automation defaults to active for Harvest Resources and inactive for Waystation collection, and save loads automatically recalculate species rights.

Nomads and Arkships

Nomadic empires start with an Arkship-equipped Voidlure Array and can build megastructures in unstudied systems containing a waystation. Arkships enforce a 10-year cooldown following Max Aura effects.

Fixes and Performance

This build stops Tombworld Earth from replacing the UNE, fixes science ship automation stutters during excavations, and prevents dual-placement exploits for planetary and orbital ring buildings.

Why this patch matters

The Pegasus open beta recalibrates economic resource tracking, adds flexible galaxy sliders, and clears a wide backlog of empire bugs.