The first few "hacks" made target a game called "The Battle for Wesnoth" mainly version 1.14.9 - so they might not work if you are testing this locally on a different version
Note; the game runs on 32bit so for the "hack" tool to work properly you also should run it on 32bit
this contains one of the first "hacks" made Using winapi to hook into the process and edit the value of how much gold the player has.
(lib.rs) The .DLL itself, it works if injecting it with Cheat Engine. You can then pressing 'm' sets your gold to 9999
(main.rs) The injector, which is a bit of WIP and unusable so far. Currently it crashes on injecting the dll, i'm unable to see why yet
Ingame screenshot after pressing 'm':