Hi, I'm trying to open a file from a tutorial on here, it says it's for Construct 2 but from what I've read this shouldn't cause a problem (maybe I'm wrong), but it says when I try to open it, I have to install "sierra arcade plugin" first...I thought that was already there? It is the tutorial to add more to endless runners. Maybe I need the paid version of Construct? I'm currently just checking everything out. Thanks in advance for any help.