Welcome I'll try to give you a quick explanation.
Atlasia is a government simulation in which registered Atlasians can run for vary government positions from Lt. Governors to President.
Atlasia's legislative is unicameral with legislative powers vested in the 10 member Senate which has 5 Senators from districts which are created by the governors and are nearly equal in population and regions, which are Atlasia's equivalent of States.
Atlasia's judicial branch is represented in the Supreme Court which is made up of three justices appointed by the President with the approval of the Senate. Their function is similar to the US Judiciary.
Atlasia's executive branch is represented by the President and the Cabinet. The President is elected by a national popular vote every 4 months. This vote uses preferential voting as of now which is the same system that is used in places such as Australia.
Atlasia is comprised of 5 regions, the Northeast, Southeast, Mideast, Midwest and Pacific, which act as our states. Each region has a republican system of government and have elected Governors and Lt. Governors.
The current major political parties are:
The Christian Democratic Party (CDP): Economically centre to centre left, socially right/authoritarian. Mostly composed of forum populists. Their platform and a history can be found
here.
The Independent Liberal Party: Economically centre-right to centre-left. Socially liberal. The largest mainstream leftist party in Atlasia. Mostly consisting of Social Liberals, moderate social democrats, centrists, and some libertarians. Their platform and history can be found
here.
The Free Democratic Party: Economically centre-right to right. Socially liberal/libertarian. The main libertarian party in Atlasia which stretches from moderate libertarians to more ideological libertarians. Second largest party on the right. More information can be found
here.
The Social Democratic Party: Economic centre-left to left. Socially liberal. The socialist party of Atlasian politics the Social Democrats mostly represent the people who are more left wing than the Independent Liberals. More information can be found
here.
The Progressive Conservative Party: Economically centre-right. Socially centrist. This party has just recently moved into major party status. Has shout to become the party of the centre. Many stances are still undefined. More information can be found
here.
If you have any more questions feel free to PM me, email me, or IM me.