I only have access to OS X right now, so I tried to use both WineBottler and Wineskin Winery to launch the Windows version of Steam. Steam froze when I tried opening another game, so I tried using PlayOnMac. When Steam opens and I try to install Civ 6, it shows the disk space required as 139 MB. The only files that get downloaded are _CommonRedist and DLC, so Civ won't actually launch. Instead it says "failed to start game (missing executable)". I also tried verifying the files and Steam thinks they're fine. Does anybody know how I could fix this?