A Hat In Time, it's a fun indie platformer. Co-op was just added but it's only local co-op for now but me and a friend wanted to try it out even though we live a few hours apart.

Setup was super easy but my friend did say he was having a few visual issues because I was hosting and I have a 3440x1440 monitor. I didn't get to see what the issue was like but he did say it was manageable.