Have An Event Happen Forever, Even If The App Is Closed.

Idk How To Put The Title But. I’m A Newbie In Ue4 And I Am Making A Horror Game (First Ever Game). And I Am Adding Like A Secrets/Trophies Map, But What I’m Trying To Do Is When You Get A Trophy It Will Stay Forever Even If You Close The Game And Stuff, So You Won’t Have To Collect The Trophy Everytime And Will Know That You Have Already Collected A Trophy. Does Anyone Know?

You need to use a save game: