http://plarium.com/forum/en/stormfall-age-of-war/game-tutorials/23566_league-fortress-2/?post=194934
According to Alyona you need to downgrade another castle first.

http://plarium.com/forum/en/stormfall-age-of-war/game-tutorials/23566_league-fortress-2/?post=194934
According to Alyona you need to downgrade another castle first.
to get to level 8 you have to downgrade a level 7 so one of the leagues that works "cooperatively" would have to take a downgrade twice
not ideal but it could be done
I know that there was lost of discussion early on about attacking certain level fortresses in order to upgrade your leagues fortress.
I didn't really understand their question but in reading it I came up with a question of my own.
To start it off.
EXAMPLE: Your fortress is at Level 10 and I need to downgrade another leagues level 10 in order to upgrade to level 11. I look for another leagues level 10 but find a league fortress leveled to 20. I manage to downgrade that leagues level 20 fortress to level 19 and get the achievement required to level my fortress to 11.
QUESTION: When I go to level my fortress from level 11 to level 12 will I have to downgrade a fortress level 11 or higher? Will our league have to continue to level down fortresses every time we go to upgrade our fortress? After we have already downgraded that level 20 to level 19 does that achievement carry over to each fortress level upgrade attempt from here on out?
Thank you,
Sloan
Is there any info on fortress upgrade cost from level 0 to level 5 in glory points and/or sapphires for each level. For small league its impossible to build it to level 5 so i need to know if possible exact costs to get there or leave it on level 0.Around 30K of glory point should be enough to take it up to lvl5 from lvl 0 . Each level needs 1 day to get upgraded and it costs 1000 saphires to boost it. Level 5 needs 2 days and it costs around 2020 saphires to boost it. My advice would be upgrade the first and second level for free without boosting and keeping 0 troops inside so that you dont get attacked for pvp and then boost the other levels especialy if there is a league fortress shadow tourney ongoing as you will go down faster than you thi
Hi there
If I read the replies above as correct, if our fortress is at level5 we must upgrade it to level 6 first before downgrading a level 6 fort, then upgrade to level 7 and then do a level 7 fort to go to lvl 8. Or does the downgraded level 6 fort we achieved(whilst lvl 5 fort) show up when we get to the lvl 6 after the glory point upgrade completes?Thanks, I thought there was a previous post somewhere that gave us that information but I couldn't find it, it might be helpful if it was actually included in the information tab on the game, I did actually try to find the information myself :/Jezebel said:Level 8 is a milestone level and cannot be downgraded, are levels 10 and 12 milestones also or can they be downgraded at those levels?Only fortress levels 0, 5, and 8 are milestones all other levels can be downgraded.
iknick27 said:
hey Daniel,
i dont wanna go directly to level 8 (from level 5) but i wanted to know that if i am at level 5 and attack a level 7 (what you need to do to go to level 8) i dont need to attack a level 6 also .... i hope i explain it ok? :) the normal way would be to attack a level 6 first to go to level 6.... but i want to skip this step and attack a level 7 so i can upgrade to 6, 7, 8 without attacking any other fortresses
Thanks for sharing your thoughts with me
Nope you can't skip it . You will need to downgrade that lvl6 to go up by one lvl and then downgrade the lvl7 to go up to 8 .
You are lvl 5
Upgrade to lvl6 with glory points
Downgrade a lvl6 + the glory points will take you to lvl7
Downgrade a lvl7 + the glory points will take you to lvl8 .
No other way , No skip to anything.

I thought that lvl8 was a safe point . So it CANT be downgraded to lvl 7. and now you are saying that it can? You are wrong then as it CANT be downgraded i have attacked lvl8 fortesses and they stayed at that level... Plus i don't think that the credit of downgrading a lvl7 will count again if you get downgraded as it would be possible to go to lvl8 very easy with 2 leagues working together.
The mechanics are as follows:
1) You reach level 7.
2) You downgrade level 7.
3) You can upgrade to level 8.
4) You can be downgraded to level 7 again.
5) You won't have to downgrade another level 7, it already counts.
8) You can upgrade to level 8 again.
To upgrade a fortress from 11 to 12, does the beacon have to be held for duration of upgrade or does it only have to be captured at time of fortress upgrade?According to all rules I have found the requirement has to be met upon the start of upgrade. So if you have a Beacon when you start the upgrade and subsequently loose it, the upgrade will continue through completion. However, to go to the next level you must meet those requirements which are even more stringent.
hey Daniel,
i dont wanna go directly to level 8 (from level 5) but i wanted to know that if i am at level 5 and attack a level 7 (what you need to do to go to level 8) i dont need to attack a level 6 also .... i hope i explain it ok? :) the normal way would be to attack a level 6 first to go to level 6.... but i want to skip this step and attack a level 7 so i can upgrade to 6, 7, 8 without attacking any other fortresses
Jezebel said:
The screen shot I provided shows the saphs needed to upgrade including the glory points is there a table that shows what the costs are to boost the upgrades? I am just trying to help a friend figure this out I don't remember when I did mine I know it wasn't a LOT but better to know ahead of time.
Hi! We have this info on Sparta Wiki: https://wiki.plarium.com/index.php?title=Tools-Upgrading,_Coalition_Capital:SWOE
https://wiki.plarium.com/index.php?title=SF_League_Fortresses - Here's the Stormfall article, but seems like the levels are shifted a bit. Nevertheless, if upgrade time, required Tools and gained Influence points are the same, I guess Boost cost is the same as well :)