The system is defined by the ethics of the given government.
Buildings cost
This modifier gives you a per cent discount for constructing specific buildings.
It regards both buildings on your homeworld, as well as other planets.
Notes:Useful throughout the whole game.
Slave’s production efficiency
This modifier concerns the populations that you have enslaved.
Notes:Useful only for aggressive players.
Provides a per cent bonus for food produced by slaves, which makes their population develop quicker.
Energy credits
Guarantees bigger monthly income.
Per cent bonus determined by the base monthly income in energy credits.
Notes:Useful for maintaining surplus army and in case of increased mining output.
This modifier works well if combined with modifiers of buildings and technologies.
Every building, ship and station require energy, and the storing capacity of the energy is very limited.
Minerals
Guarantees bigger monthly income.
Per cent bonus determined by the base monthly income in minerals.
Commander capabilities
Commanders are recruited on level 2.
Commander recruitment cost
Recruiting every commander will an amount of per cent cheaper.
It’s counted from the required amount of influence points.
Influence points allow many interesting actions, so lowering the cost will seriously expand your options.
Happiness
Population happiness bonus concern every planet of your empire.
The population happiness will be increased per cent in every slot on a planet.
Notes:The population’s happiness is important in two instances.
When your actions are not in line with the ethics, and when planets are short on food.
Increased level of happiness will help to quell rebellions and social divergence in your leading population.
Useful for democratic and oligarchic societies.
Edicts cost
You guessed it.
Edicts are cheaper in influence points.
Thanks to reduced costs you could introduce more edicts or save points for other things.

Edicts standing time
For edicts that affect populations of a given planet.
The basic time of edict standing time is 10 years.
Depending on the achieved bonus an edict can be prolonged, making its bonuses last longer.
Notes:Always useful if you want to issue edicts for longer at the same cost.
Notes:Important in all modes.
Research alternatives
Base amount of alternative research for each branch is 3.
This modifier defines the additional number of research for each branch of science.
Notes:Everyone likes to have a choice - the bigger the better.
Having more alternatives in research will help you to develop your empire according to your current needs and strategy.
Resettlement cost
Reduces the base cost of interplanetary resettlement.
Notes:Resettlement provides better influence over the development of individual populations on planets of your empire.
Navy limit
Bigger limit means more ships, without the penalty of additional maintenance cost.
Notes:Especially useful during war.
Notes:Much like the last one, this is particularly useful during war.
Ship cost
Per cent decrease of the cost of constructing ships.
Ship upgrades cost
Per cent decrease of the cost of modifying a basic design of a ship.
Army maintenance
Lowers the maintenance cost of ground troops, and planetary garrisons.
War-time happiness
Directly influences the population’s happiness during war.
Unified society makes sure you have control over your population.
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