Saving Multiple Int's with 1 script?

hey i started some days ago making a small incremental game and used playerprefs to save the count of how many items i bought but for some reason it decided to now change from 1 upgrade all counts of all upgrade is there a way i can safely save every int seperatly based on the name of the item without having to use multiple scripts?

this is what happens now


An array or list.

thx for the tip it helped me alot