Government Types

Tribal
Warlord (The strongest and most fearsome warrior of the tribe is the sole leader of the group)

Succesion (The strongest warrior of the tribe may pick an heir, however illigetimate)

Federation (Multiple tribes come together under one banner to work on issues together)

Republic
Merchant (The richest and most successful merchants come together to make choices as a unified guild)

Oligarch (A republic where a few families work together to hold power and elect amongst themselves)

Democratic (A republic where electives are voted in and parties are formed to make decisions for the people)

Dictatorship (The elected representative or party holds absolute and unquestioned power over the nation)

Bureaucracy (The republic is controlled by state officials where all choices are based off strict guidelines and rulings)

Noble (The noble houses of the land come together to make decisions for the nation)

Monarchy
Gavelkind (All titles are shared equally between the monarch's children)

Elective Gavelkind (All titles are passed down unequally between the monarch's children)

Elective Monarchy (The heir is chosen by voting process of the dynasty's family)

Primogeniture (The oldest child inherits the throne)

Ultimogeniture (The youngest child inherits the throne)

Seniority (The oldest living dynasty family member inherits the throne)

Tanist (The heir is chosen by voting process between the dynasty's family and their vassels)

Religious Succession (The heir is chosen by a religious head)

Feudal Monarchy (A system where the monarch and nobility exchanges land and money in return for military service and labour)

Constitutional Monarchy (The monarch's powers are defined and limited by a written constitution created by lawmakers)

Elective Monarchy (The royal family and next ruler is decided by vote of a council)

Empire (Multiple nations or states brought together under one ruler)

Commonwealth (A joining of two sister nations or states permanently)

Elective Empire (All the Kings, Lords and High Priests of the land vote for an Emperor to rule and protect them)

Theocracy
Council (A council made up of the highest clergymen or priests make unified decisions)

Controller (A singular head of the religion acts as the voice of their deity and rules the nation)

Order (Either an order of priests, knights or zealots. Has a rigged and structured political system mirroring the military)