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This article may contain outdated information that is inaccurate for the current version of the game. It was last updated for 2.2.

This article is for the PC version of Stellaris only.

Mechanics are aspects of the game which require detailed discussion. Herein is a brief about each mechanic and a link to a more detailed page.


Mechanic Ver. Notes
Fungoid massive 12.png Species 2.2
Fanatic Spiritualist.png Ethics 2.2
Traits 2.2
Trait Point Population modification 2.2
Trait ruler explorer.png Exploration 2.2
FTL 2.2
Anomaly 2.2
PM Chthonian Planet.png Celestial body 2.2
Alien Pets.png Spaceborne aliens 2.2
Alien extradimensional 01.png Crisis 2.2
Leader trait scroll.png Events 2.2
Fallen Empires 2.2
Trait indolent.png Pre-FTL species 2.2
Colonization 2.2
Construction 2.2
Terraforming 2.2


Mechanic Ver. Notes
Empire 2.2 A group of planets and star systems that are ruled by the same government and controlled by a single acting entity
Direct Democracy.png Government 2.2 Government types fall into one of three broad categories: autocracies, oligarchies and democracies.
Menu icon policies and edicts.png Policies 2.2 Empire-wide laws of behaviour that outline the empire's governing precepts
Menu icon policies and edicts.png Edicts 2.2 Instant or temporary modifiers which can be applied to either a single planet or an entire empire
Trait ruler military pioneer.png Leader 2.2
Army rebel.png Factions 2.2
Population 2.2
Energy Credits.png Economy 2.2
Building modern 2.png Buildings 2.2
Technology 2.2
Traditions 2.2


Mechanic Ver. Notes
Diplomacy alliance.png Diplomacy 2.2 Available diplomatic actions, attitude and opinion modifiers
Diplomacy isvassal.png Subject empire 2.2 Empires which fall under other empires' control or jurisdiction
Diplomacy federation.png Federations 2.2 A group of empires in a semi-autonomous union with a rotating leadership
Diplomatic trade icon.png Trade 2.2 Trade options between two empires
Army xenomorph.png AI personalities 2.2 AI behavior patterns as dictated by their randomly assigned personality types


Mechanic Ver. Notes
Army assault.png Warfare 2.2
Damage vs country type.png Space warfare 2.2
Diplomacy war.png Land warfare 2.2 Ground forces for invading and defending planets as well as handling out of control rebellions
Menu icon ship designer.png Ship designer 2.2 A tool for creating and customizing of new or existing ship and station templates
Ship 2.2
Starbase 2.2 A large space station that serves as a planets' orbital construction facility which can also be used for defense purposes


Mechanic Ver. Notes
Modding ~
Patches ~
Downloadable content 2.2
Achievements 2.2
Unknown.png User interface 2.2