I have the current 13" Macbok Pro, the MacBookPro14,1 running High Sierra. I was a Kickstarter backer for Dreamfall Chapters but I could not play the game on release. I thought I'd give it a try now. I just downloaded it from Steam and gave it a try. But it's not playable. The graphics are completely jittery. In windowed mode, even the window title bar is fuzzy. The menu is fine but as soon as the game starts, it's completely unplayable. I remember trying the first few minutes of the game on an older Mac on release and it worked without a problem.