Larian Studios Forums Divinity: Original Sin 2 Divinity - Original Sin 2 - General D:OS 2 Early Acces MAC OSX?

If you buy the game on Steam (or GOG, when available) that will include the OSX and Linux releases, if and when the game is ported to those platforms. You would not have to re-buy it.

The initial Early Access release will not include gamepad support or local split screen co-op (those functions still need to be updated for D:OS 2).