This is a basic example in AutoHotkey of a tool resembling CheatEngine's main read/write memory functions. It is very basic but covers a few of the most common ram searches.
Caution
In the case that you use this for a game, use it for offline games, I am not responsible for any misuse of this tool. It is also very likely that it may be flagged by anticheats if you target a game process.
Note
Remember that AutoHotkey is a slow interpreted programming language, the class however with no aditional code, is able to do around ~300.000 RAM reads per second on an Intel core i7 8700K. AHK-L v1 also lacks multithread support, so if you want a lightning-fast alternative consider using a compiled language solution.
This is a stripped down version of one of my EmuHook demos.