The Witcher free with any GOG purchase
GOG is running a promotion which appears to have no downsides for you, the consumer. Buy any title from its extensive collection of Mac and PC games, which includes many classics as well as newer indies, and you'll score a free copy of The Witcher: Enhanced Edition - kind of a must-play for any RPG fan. The deal runs till October 17. Additionally, delightfully bizarre strategy RPG jetpack dragon mash-up Divinity: Dragon Commander is on sale at 40% off.