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Stellaris
Stellaris
4.5.3|Nov 4, 2026
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Stellaris 4.5.3 patch released (4e91)

2/5 Minor

Stellaris v4.5.3 delivers a massive suite of bug fixes, focusing on habitability display corrections, multiplayer stability, and district specialization logic.

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Key Changes

  • 1Comprehensive fixes for Habitability display and logic for values exceeding 100%
  • 2Multiplayer stability improved with expanded out-of-sync checks for all entities
  • 3Strategic resource districts (Betharian, Gas, etc.) limited to one per planet
  • 4Ethics attraction calculation changed from multiplicative to additive
  • 5New Volcanic Climate Mods trait added for Cybernetic empires
  • 6Job automation added for Virtual Bliss Plaza and Omni-Bliss Nexus in Gestalt empires
  • 7Tankbound empires now start with an additional Generator District
  • 8Pleasure Seekers receive extra starting Civilian Industries and Holo-Theatres
  • 9Deluge Machine can now correctly turn Gaia worlds into Ocean worlds
  • 10AI empires fixed to allow founding Mercenary Enclaves after wars

All Changes

💰Economy & Districts(10)

  • nerfDistrict Specializations: Betharian Processing, Exotic Gas Capture, Rare Crystal Extraction, and Volatile Motes Harvesting districts are now limited to one per planet.
  • buffTankbound: Tankbound empires now start with an additional Generator District instead of converting existing districts.
  • fixDistrict Specializations: Coastal Hamlets and Agrarian Villages now correctly change to Aquaculture or Agricultural Focus when requirements change.
  • fixDistrict Specializations: Mixed Industry and Civilian Industry now correctly change to Heavy Industry when requirements change.
  • fixDistrict Specializations: Administrative Hub, Spiritual Enclave, and Sanctuary Enclave now correctly convert between each other.
  • fixSubterranean Urbanization: Subterranean Urbanization now correctly changes to Mineral Extraction when requirements change.
  • fixDistrict Specializations: Industrial-Trade Quarter, Military Logistics Complex, Popular Research Mall, and Collective Research Complex now correctly convert.
  • fixBuildings: Queued buildings for branch offices or subject holdings no longer count towards the building limit of the other holding type.
  • fixSubject Colonies: Occupied subject colonies no longer produce job resources for their overlord.
  • fixSubject Jobs: Resources produced for an overlord now scale with job workforce (including automated) instead of pop count.

🧬Species & Ethics(10)

  • changeEthics Attraction: Pop and country ethics attraction are now summed rather than multiplied.
  • newCybernetic: Cybernetic empires can now take Volcanic Climate Mods to adapt species to Volcanic Worlds.
  • buffHedonists: Hedonists on the Decadent Lifestyle use half as many amenities while the empire has no Consumer Goods deficit.
  • fixHabitability: Fixed habitability display for species reaching 175% or 250% across all UI panels.
  • fixMutation Authority: Fixed Mutation Authority tooltip claiming a 175% ceiling when it grants 125%.
  • fixDry Climate Mods: Fixed Dry Climate Mods incorrectly granting Adapted Habitability on Volcanic Worlds.
  • fixClimate Mods: Species losing a Climate Mods trait now gain a random preference from the climate it covered; Aquatic species always get Ocean World.
  • fixNecropurge: Fixed Necropurge sometimes failing to create necrophaged pops.
  • fixThermophile: Thermophile livestock no longer consume food.
  • fixAuto-Modding: Species modification and sub-species integration no longer reset Auto-Modding progress.

🚩Factions & Origins(5)

  • buffPleasure Seekers: Pleasure Seekers now start with extra Civilian Industries and Holo-Theatres to manage starting resources.
  • fixInfernal Empires: Infernal empires with Tree of Life or Here Be Dragons now start with an Agriculture District.
  • fixTankbound: Tankbound Infernal empires no longer start with 3 extra energy districts on their capital.
  • fixNomads: Nomads now receive Society Research from Ruined Star System and Baol excavation sites instead of unusable rewards.
  • fixMasquerade Faction: The Masquerade Faction no longer demands that Nomads control the Galactic Market.

🚀Combat & Fleets(5)

  • fixArmies: Attacking armies are moved back to transport ships if a war ends during combat.
  • fixFOTD: Fixed the scaling of fleets created for the FOTD separatist civilization.
  • fixLogistic Ships: Automated logistic ships will now return loot to arkships regardless of distance.
  • fixBehemoths: Behemoths now gain Growth when their armies successfully take over a planet.
  • fixMercenary Enclaves: AI empires can now correctly found Mercenary Enclaves again after a war ends.

🖥️UI/UX(5)

  • newUI: Added the 'Adapted Habitability' game concept to explain mechanics for exceeding 100% habitability.
  • changeTooltips: Job tooltips now show effective workforce and resources produced for the overlord.
  • changeDeep Space Citadel: The Deep Space Citadel downgrade window now greys out designs and explains why a downgrade might be blocked.
  • fixMonthly Pop Summary: Monthly Pop Summary now includes unusual sources like Necrophaging and events.
  • fixFleet Actions: Fleet actions that cannot be used due to cost or cooldown now appear disabled in the right-click menu.

⚙️Performance & Stability(3)

  • fixMultiplayer: Multiplayer out-of-sync checks now compare every colony, fleet, ship, and country for faster detection.
  • fixStability: Fixed a rare crash occurring when a subject empire became independent after its overlord was destroyed.
  • fixMultiplayer: Fixed multiple out-of-sync errors related to hot-joining, AI empires, and hiring mercenary fleets.

🛠️Modding(1)

  • newModding: Added the keep_automodding parameter to the transfer_pop_amount effect.

Summary

Overview

Stellaris 4.5.3 is a comprehensive maintenance update aimed at resolving technical issues and refining gameplay systems. The most significant changes involve a complete overhaul of how habitability values are displayed and calculated, ensuring players see accurate data for species capable of exceeding 100% habitability.

Balance & Economy

Several balance adjustments have been made to district specializations. Betharian Processing and strategic resource harvesting districts are now limited to one per planet. Additionally, ethics attraction has been reworked from a multiplicative to an additive system, and several origins like Tankbound and Pleasure Seekers received starting resource buffs to improve their early-game viability.

Stability & UI

Multiplayer stability sees a major boost with expanded out-of-sync (OOS) checks that now monitor every colony and ship. The UI has been polished with new tooltips for job production and a dedicated 'Adapted Habitability' game concept to explain high-level habitability mechanics.

← OlderStellaris 4.5.3 Open Beta ReleasedOct 28, 2026

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