[For iOS 9.3.3 Jailbroken]
(To edit/make permanent changes in a file)
For .plist files to work with your game, (You don't need a PC) you need to do this:
1) Download .plist file.
2) Deleted the original .plist file with iFile or Filza. (Located In directory below).
3) Open MTerminal and write: "su root" (After that, you need to put your root password, ex: alpine)
4) Then write this: "launchctl kickstart -k system/com.apple.cfprefsd.xpc.daemon" ( Close MTerminal)
5)Respring
6) Now copy the modified .plist into this dir, var/mobile/Containers/Data/Application/your game/Library/preferences
7) Enjoy!
Greetings.
P.S: Tested with original App(s) from AppStore.
Walking Dead: The Game
Read more at: https://iosgods.com/topic/2669-the-walking-dead-the-game-all-version/page-17