Scoring

When you completed a mission, you get the victory screen with below that a Score. In single player, this score doesn't really matter, it's just something for yourself: if you replay that mission, you can aim for a higher score than the previous go through.

In multiplayer, however, your score determines your rank on the player list of that game.

How is that score calculated?

Your score largely depends on the mission goals: if something is a goal you will get points for it, if not, you won't get any points. Also, your score depends on how long it takes you to complete the mission: 2 points will be subtracted from your score for every month you spend in the mission.

Table with points:

Goal type	Score if it's a mission goal	Score if it isn't a goal
Population	city population / 10	0
Treasury	city treasury / 25	city treasury / 50
Monument completion	percent complete x monument value (see below)	N/A
Menagerie	25 x different animal types in your palace	10 x different animal types
Trading cities	50 x trading partners	0
Vassal cities	250 x vassal cities	0
Allied cities	150 x allied cities	0
Housing level	100 per housing goal	0
Production	100 per production goal	0
Profit	highest annual profit / 25	0
Hero	10 for each month in which a hero is in your city	0

Monuments are a little different: some monuments are very large, some are small. Thus you won't get the same amount of points for every monument completed. The following table lists the monuments and their points:

Monument	Points
Great Temple	100
Splendid Temple	150
Temple Complex	200
Grand Temple Complex	300
Tumulus	150
Grand Tumulus	200
Large Palace	200
Underground Vault	500
Grand Canal	400
Earthen or Stone Great Wall	500
Clock Tower	100
Grand Pagoda	150

All points added up form your "Raw score", this score is multiplied by a value that depends on difficulty:

Difficulty modifier
Very Easy	Easy	Normal	Hard	Very Hard
0.5	0.8	1	1.2	1.5