Hello, I have updated the Mac OSX version last month and now it seems to be finally alright, especially as I fixed a nasty rendering bug which had appeared on the new OSX El Capitan ! I also updated the Linux version this week and it seems to run fine on Ubuntu 12.04, but for Ubuntu 14.04 there's still some doubts if it works in all situations or not. Don't hesitate to report your experience in the forum of the game => http://steamcommunity.com/app/346470/discussions/ .