The Numbers
For the first two years of a scenario, Peace rises by two points per year. Thereafter, your citizens feel more secure, and the peace rating rises by five points per year.

These basic rises are then subject to the following modifiers:

• -1 If any house in the city spawns a protestor during the year (there are
  no further penalties for the second and subsequent protesters spawned).
• -1 For each of the first twelve buildings destroyed by invaders or rioters

Certain buildings are classified as defensive (or defensive support) structures, and may be lost without penalty. These are:

• Walls
• Gatehouses
• Towers
• Prefectures
• Aqueducts
• Engineers' Posts
• Tents
• Wells

Invasion and riot damage carries a further penalty. For two years following damage by riots
or an invasion, the peace rating rises by at most two points (just like in the
first two years of the scenario). presumably this is intended to reflect your
citizens' renewed concerns for their safety.

Worked Examples
#1 Consider a city where an invasion in year 4 destroys one building, and a second invasion in year 8 destroys eight buildings. The peace rating would change with time as follows:

Date	Peace Rating	Date	Peace Rating
January, Year 1	2	January, Year 7	22
January, Year 2	4	January, Year 8	27
January, Year 3	9	January, Year 9	24
January, Year 4	14	January, Year 10	26
January, Year 5	18	January, Year 11	28
January, Year 6	20	January, Year 12	33

#2 Now consider a city in which a criminal is spawned in years 1 and 4. The Peace rating would change as follows

Date	Peace Rating	Date	Peace Rating
January, Year 1	2	January, Year 4	13
January, Year 2	3	January, Year 5	17
January, Year 3	8	January, Year 6	22

Oooh...
I thought there was some connection to the danger level of a city. For instance, peace in Lindum or Sarmi seemed to rise faster than in Valentia. On the other hand, I got 100 peace in Valentia, so that must have been an illusion.

Very good post, Caesar Alan!
Especially the maximal Peace rating loss due to destroyed buildings and the list of buildings that can be destroyed without penalty are very useful. Thanks!

Angel Baltic

Caesar Alan,
I should have complimented you earlier. Very good stuff! I'm surprised that aqueducts can be destroyed without a Peace penalty.

Brugle So was I! In fact, I was so surprised that I went back and checked all over again just to make sure

Caesar AlanThe Appian WayThe Trojan Horse
CityBuildingContests.net
"Don't be frightened little sheep. I won't hurt you... much."

Caesar Alan,

I finally took a close look at your examples. In Example #1, Peace rises by 5 - (number of buildings damaged) at the beginning of the year after invasion damage. If so, after an invasion that destroys only a building or two, Peace can rise more at the beginning of the next year than in the two following years, which is surprising. Would you confirm that the example is correct?

I've read that damage caused by a gladiator revolt affects Peace. Did you check that? How about earthquake damage?

Finally, I would enjoy hearing how you did the tests, if you're not too busy catching fish or building chariots.

[This message has been edited by Brugle (edited 04-20-2001 @ 09:57 PM).]

excellent work, Alan, as aways!

What surprises me most is that burnt tents do not seem to trouble the peace rating.....

Citizen Paul,
I'd guess that destroyed tents don't affect Peace because they might be used to provide guards at remote towers.

I like the way Alan has developed the subject... Excellent work.

Hello all. Sorry to jump into this thread several days late. I finally got registered in this forum after
"lurking" here for several weeks. Some comments:

1. I think Brugle is right about earthquakes. I just played
the Tarraco scenario, and during the year of the quake my
peace rating rose only 4 points instead of 5. I don't think
I had any protestors, but I'm not absolutely certain.

2. It's strange that aqueducts are "defensive" structures.
Too bad reservoirs aren't. Once I had some bad guys break
through my defenses and they knocked down a reservoir. I
was hoping they would be washed away in a huge flood, but no
such luck, only the usual cloud of dust.

3. I commend Caesar Alan for his incredibly detailed experimentation on this topic (and many others).

I've found this thread in the archieves and it answered almost all of my questions concerning the Peace rating.
Thanks Caesar Allen for your work, I thought I would bring it back up again for other players to see.

Sarmizegesta (?)

I have had the occasional native revolt that has dented my peace rating down to 28 from the required 55, whilst every other requirement would otherwise let me be promoted.

One tribe of natives cause all the trouble, even knocking down the missions posts in their territory! They chipped away at outlying structures such as trading warehouses and the like without me noticing and now I have a long haul back to peace for my City. With the ever present Gothic threat I expect this may be some time!

My question though relates to an anomaly I have found, which I think is a bug. Some of the attacking natives have remained after the skirmish, permanently hacking away at structures without damaging them! They can't be killed by troops, and when a prefect attacks them, he also goes into a permanent duel with them. I can also build walls over the top of them and they keep chopping!

Given that they are not destroying anything I expect that they should not continue to impact on my already dismal peace rating? Anyone experienced anything similar?

Sounds like a graphic bug... I guess you have to restart the game. I've had cases like this before (just that prefects and soldiers don't engage them at all) but because they didn't do any harm, I did not bother with them at all.

ahura mazda,

Yes, that's a rare but known problem. My Sarmizegetusa (in the Downloads) has a similar native (who's permanently attacking a gatehouse).