GOG.com kicked off their 2015 DRM-Free Summer Sale today.
With free games, 100+ titles on promo in daily deals & deep-discount bundles, this summer's sale is sure to make a splash!

Every summer adventure needs something special, and this year, gamers can earn up to three games for free. The more they spend, the more free stuff they'll get! The rewards -- free for everyone whose total spendings during the Summer Sale exceed a certain amount -- will include:

SimCity 2000 - free for everyone who spends at least $1.
S.T.A.L.K.E.R.: Clear Sky - free for everyone who spends at least $20.
Xenonauts - free for everyone who spends at least $50.

The sale will offer up daily deals and specials from now until June 21 at 11:59AM (GMT). New deals will rotate in every 12 hours, with "more than 100 offers every day." In total, some 700 games will be discounted up to 90%. The initial offerings include 10% off of The Witcher 3: Wild Hunt, 87% off Lichdom Battlemage, 80% off of Jade Empire, and more including bundle deals.