so i fail at this i found the line and changed it but nothing happend do i have to refresh or build new towers after the change
If you're trying to edit monster stats, it's pretty straight forward since we all have the same ones. You change the line, close the soul tower and re-open it to see the changes.
If you're trying to change a tower, it has to be one you actually have to benefit from it. No point in buffing a tower you can't build or don't have on a map.
If you have a tower close to one listed in here, you can change the values to find the proper line.
Let's say you have a Grand Spire of Fury +7, but my post shows the line for the +8 version, you need to change two things, dmg and hp to find the correct line, those two values change when upgrading a tower.
Grand Spire of Fury +8
48 01 00 00 68 01 00 00 96 00
Dmg-----------HP---------Range
So you need to change the first and second values. I know a +7 does 272 dmg, and if you google "hex converter" you can use it and find that in hex 272 is 110, which is entered in memory as 10 01
Grand Spire of Fury +7
10 01 00 00 ?? ?? 00 00 96 00
I don't know the hp of a +7 atm, so you'd have to enter that as hex where the question marks are.
This method should work for finding any tower you have.
*Edit*: Tower Changes are instant, you will see the dmg change in both the tower menu and the towers on your maps. Don't refresh, as that will reset all changes you may have already made. IE you have to change these lines every session you play. even when you get a time out or disconnect error from the game and it refreshes.