Feudalism and other Flash games
OK, Here goes:
Flash is evil (IMHO). I will start with a solution to your Feudalism problem, and then, I will explain my opening opinion.
In order to hack Feudalism (and many other Flash games), you need to get out your calculator or your "Multiplication Tables: Page 8". All integers are stored internally in this version of Flash as 8 times their meaningful value. (I will explain why in a sec, but just keep reading for now.) So, if you're looking for the number 20, look instead for the integer, 160. (Thats because 20 x 8 is 160.) Now, make that number change to something else (19 perhaps). Search for the new value, 152 (thats 19 X 8). Go to the found address and replace it with a multiple of 8 like 800 (100 x 8). Go back to the game and make it refresh/repaint the field value (perhaps hit the plus sign that affects the number). Wow!!! It's Magic!!! U R 2 Amazing, Rayzed!!!
Why does Rayzed think Flash is evil? Flash uses a "virtual machine" to run Flash applications. Depending on the Flash version, perhaps even the machine you're running it on, it uses one of a few (or many?) virtual machines. A virtual machine is a program that translates commands from flash so they work under whatever browser/operating system you have. Each virtual machine can store values (integers, strings, etc) in any way it wants to store them. In the case of some Flash VMs, it stores integers left shifted 3 bits (if you understand binary numbers, this is what causes the need for multiplication by the number 8 which in binary is 00001000). This should explain the need for multiplication, but let me continue my rant for a moment.
During my research, I found one location on the web that stated that (at least one) Flash VM stored integers in immutable variables (I'm guessing as strings because strings are usually immutable in modern programming languages). This means that every time a number is changed, its location in memory changes. This, of course, would make searching for values with programs like iHaxGamez impossible.
So, when you come across a Flash game, try the multiplication method. If that fails, good luck, I have no idea what will help at this time.