update · March 11, 2026
Stellaris 4.3.0 'Cetus' Update Overhauls Economy and Naval Capacity
The massive Stellaris 4.3.0 'Cetus' update restructures the galactic economy at a lower power level, increases ship naval capacity costs fivefold, and addresses end-game performance. The patch also introduces immediate population demotions and reworks several ascension paths.
Paradox Interactive is preparing the Stellaris 4.3.0 'Cetus' update for release on March 17, following an extensive open beta. The patch represents a massive shift for the grand strategy title, delivering a complete economic rebalance, tightened naval combat mechanics, and fundamental performance upgrades.
Fleet Rebalancing and Ship Capacities
Navies have been significantly restructured to feature fewer, more valuable ships. Most ships, including space fauna and event vessels, now consume five times their previous naval capacity; for instance, Corvettes require 5 capacity and Battleships require 40. Titan-class Perdition Beams now deal area-of-effect collateral damage to nearby ships, and higher-tier armor and shields grant small amounts of hardening. Crisis factions have been scaled down in fleet power to match the new economic reality, though players face tougher overall challenges due to reduced player power scaling.
Economic Reset and Pop Demotions
The economy has been rebalanced to operate at a lower overall power level with fewer non-linear stacking modifiers. Unemployed pops now automatically demote to Civilian or Maintenance Drone status at the end of each month, eliminating rising unemployment event chains and simplifying resettlement costs. Empire size generated by pops has been halved, while base empire size from colonies is increased to 20.
Traditions, Civics, and Cybernetics
Traditions have been renamed, with Mercantile and Unyielding becoming Commerce and Fortification. Cybernetic traits no longer require energy upkeep, and cyborg traits now swap half their food upkeep for energy. Psionic, biological, and tankbound civics also see adjustments, including revised job outputs and automated workforce rules.
Why this patch matters
'Cetus' forces players to adapt to leaner economies and much heavier ship investments, re-establishing strategic depth by cutting down runaway power creep.