In the older version I was able to edit save files to mess around with random stats and also make it so I can skip straight to the "fun." how do I edit the new save system?
It's using unity playerprefs.
https://docs.unity3d.com/ScriptReference/PlayerPrefs.html
On windows that's stored in registry, so editing it isn't that easy.
1. Open regedit
2. Open Computer\HKEY_CURRENT_USER\SOFTWARE\IncontinentCell\My Dystopian Robot Girlfriend
This is where the saves are.