We've released a hotfix for 1.2 that we hope will address most of the issues you have been having!
Changelog
[quote]
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####################### VERSION 1.2.1 ########################
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# Features
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* Forming a Defensive Pact now cancels guarantees and non-aggression pacts with that country
* Primitives nuking themselves now properly affects pop count
* Risk of Malcontent Slaves faction effect "Interstellar Railroad" now scales from 1% to 5% risk with 5 to 11+ owned slaves, down from 2-10% risk with 4-8+ slaves
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# Balance
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* Upgraded Nomads arsenal and ship designs. Reduced Nomad Fleet HP and damage bonus modifier from +50% to +25%. Overall they should be stronger than before
* Reduced HP of Nomad ark ships and gave them basic weapons
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# AI
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* Fixed AI not properly signing white peace in some wars that would just drag on forever
* Fixed AI not declaring prepared wars
* Fixed a case where sectors could get stuck due to lack of energy tiles and respect tile resources
* Multiple fixes for AI combat behaviour
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# User Interface
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* Fixed spelling in English localization for Attitude Map Mode
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# Bugfixes
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* Fixed a bug where merging fleets would prioritize the smallest fleet
* Fixed a bug where Gaia world spawn chance was not explicitly reduced for inhospitable stars
* Fixed issues with democratic elections alternative parties, issue caused the alternative parties to be invalid
* Fixed a bug where the display height of a galactic object wasn't being restored after loading a savegame
* Fixed so that democratic elections check the correct policy flags
* Fixed Xeno Integration tech weights
* Fixed upgrade arrow incorrectly displayed as greyed out for certain buildings on non-capital planets
* Fixed a bug where migration pacts between subjects and overlord were not allowed
* Fixed AI sometimes initiating a vote to kick right after a new member joins the alliance
* Fixed max trust not being properly set to 100 when forming an alliance
* Fixed issue with Nomads building too many new ships
* Fixed issue with Nomads not setting an end point for their journey when playing in a tiny galaxy
* Technology database patches tech_repeatable_improved_core_planet_cap -> tech_repeatable_improved_core_system_cap if save file version is below "Stellaris v1.2.0"
* Fixed CTD due to invalid pops on planet
* No longer wait for research in ALL tech areas to be halted before updating technology research alternatives
* Survey fleet order checks if fleet can move to system, so players can no longer reach out-of-reach systems using fleet view survey button
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# Graphics
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* Improved skybox quality
[/quote]
Old versions are as always available under the beta tab in Steam.
Asimov update (1.2) Released post
Stellaris
Paradox Development Studio
Paradox Interactive
2016-05-09
Strategy Simulation Singleplayer Multiplayer
GameBillet
8.91 /
€
Game News Posts 537
🎹🖱️Keyboard + Mouse
Very Positive
(119848 reviews)
https://www.stellaris.com/
https://store.steampowered.com/app/281990 
The Game includes VR Support
Linux [153.28 M]
Stellaris: Infinite Frontiers eBook
Stellaris: Plantoids Species Pack
Stellaris: Leviathans Story Pack
Stellaris: Utopia
Stellaris: Nova Edition Upgrade Pack
Stellaris: Galaxy Edition Upgrade Pack
Stellaris: Anniversary Portraits
Stellaris: Synthetic Dawn
Stellaris: Apocalypse
Stellaris: Humanoids Species Pack
Stellaris: Distant Stars Story Pack
Stellaris: MegaCorp
Stellaris: Ancient Relics Story Pack
Stellaris: Lithoids Species Pack
Stellaris: Federations
Stellaris: Necroids Species Pack
Stellaris: Nemesis
Stellaris: Aquatics Species Pack
Stellaris: Overlord
Stellaris: Toxoids Species Pack
Stellaris: First Contact Story Pack
Stellaris: Galactic Paragons
Stellaris: Astral Planes
Stellaris: Expansion Subscription
Stellaris: The Machine Age
Stellaris: Cosmic Storms
Stellaris: Grand Archive
Stellaris: Rick the Cube Species Portrait
Stellaris: Season 08 - Expansion Pass
Featuring deep strategic gameplay, a rich and enormously diverse selection of alien races and emergent storytelling, Stellaris has engaging challenging gameplay that rewards interstellar exploration as you traverse, discover, interact and learn more about the multitude of species you will encounter during your travels.
Etch your name across the cosmos by forging a galactic empire; colonizing remote planets and integrating alien civilizations. Will you expand through war alone or walk the path of diplomacy to achieve your goals?
Main Feature
- Deep & Varied Exploration.
- Enormous procedural galaxies, containing thousands of planets.
- Explore Anomalies with your heroic Scientist leaders.
- Infinitely varied races through customization and procedural generation.
- Advanced Diplomacy system worthy of a Grand Strategy Game.
- Ship Designer based on a vast array of technologies.
- Stunning space visuals.
- OS: Ubuntu 20.04 x64
- Processor: Intel iCore i3-530 or AMD FX-6350Memory: 4 GB RAM
- Memory: 4 GB RAM
- Graphics: Nvidia GeForce GTX 460 or AMD ATI Radeon HD 5870 (1GB VRAM). or AMD Radeon RX Vega 11 or Intel HD Graphics 4600Network: Broadband Internet connection
- Storage: 12 GB available space
- OS: Ubuntu 20.04 x64
- Processor: Intel iCore i5-3570K or AMD Ryzen 5 2400GMemory: 4 GB RAM
- Memory: 4 GB RAM
- Graphics: Nvidia GeForce GTX 560 Ti (1GB VRAM) or AMD Radeon R7 370 (2 GB VRAM)Network: Broadband Internet connection
- Storage: 12 GB available space
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