Deponia is released for the Mac now on GOG.com, and on GamersGate (click on the blue “buy the Mac game here” button in the slider). Click on the links mentioned here, create an account using the signup in the top bar on the GOG.com website and buy the game. You automatically get when creating an account 9 free GOG games added to your account (most of them also native for Mac so no port required) so you have nothing to loose, only to receive !
Experience a mind-blowing adventure with Rufus. Help him save the planets, win over the girl of his dreams and incover dark deeds. But be warned: you are about to encounter shady look-alikes and make new friends, as well as unexpected enemies. The plan will only succeed if you can shrug off your pursuers, build crazy gadgets and show loads of courage with an added pinch of heroism.