Hey @FOOZA2907,
So this will need to be broken down into several parts then. You will need:
- A save system for each individual profile.
- A menu system to hold the contents of your achievements. It may benefit to have a modular widget that just takes different requirements for each variation.
- Several achievement “systems” that at act as achievement trees you can progress on.
Unfortunately, I could not find any all in one systems/tutorials that are exactly what you are looking for, but hopefully above helps point you in the right direction.