Thu Aug 19, 2010 3:21 am by Fey
I do not know if there is one.
But I can tell you the catapult requirements for each level.
Keep in mind that these are without ANY TECHS. With techs you could probably cut them down by a ratio of 5:1 ex: 500 cats, for lvl2 fort, with good techs could be brought down to 400.
1 - 250
2 - 500
3 - 750
4 - 1000
5 – 1500
6 - 3000
7 - 6000
8 - 9000
9 - 13000
10 - 18000
Keep in mind I did not make this, I was shown this.
I found by using this, that this is probably the best amount of cats to take to NOT cut it close, and lose NO troops.
Although sometimes I do use less than suggested here.