The Summer Sale is now underway on GOG.com, and will run until June 18th, which is still a few days before summer actually gets underway, of course we like early as well as Indian summers. 

Besides the 1000+ DRM-free titles on sale for up to 90% off they are offering everyone a copy of Xenonauts completely free, and will also give a free copy of Sunless Sea to everyone who plunks down at least $5.00 USD during the sale, and a free copy of RiME to anyone who spends at least $20.00 USD.

You can grab Xenonautss for free here. Xenonauts is a strategy game in which you control a multi-national military organization defending a Cold War-era Earth from alien invasion, using small squads of persistent soldiers to eliminate the extraterrestrials and recover their technology in turn-based ground combat. A detailed strategic layer allows you to coordinate the defense of the planet, using your interceptors to shoot down UFOs and researching captured artifacts to learn about your foes and unlock new combat equipment to use on your missions.

Cowabunga dudes and dudettes, the summer is in!
But hey now, don't you panic. The games go on vacation too in #SummerGaming – the biggest Sale event of the year – on GOG.COM, your radical distribution platform for DRM-free games you can take anywhere!

To bask in seasonal goodness, to roll with good friends, to take in the fresh air… that doesn't mean there's no room to play. Discover over one thousand games up to 90% off; spend just 5$ to unlock a free copy of Sunless Sea, or pick up 20$ worth of games and earn RiME!
Don't forget to make your games DRM-free with GOG Connect. It's awesome, visit GOG.com/connect, log in to your Steam account, and claim a DRM-free edition of your every eligible game!

Get Xenonauts FREE for keeps! Saving the world ain't simple, Xenonauts recaptures the original X-COM: UFO Defense gameplay for all its depth and complexity – a highly recommended play for curious fans of the X-COM reboots and series purists alike. 

The Xenonauts giveaway lasts 48 hours until June 6, 1 PM UTC. Follow us on Twitter and Facebook for more updates – we're not saying more giveaways are coming, but we're definitely not saying they aren't.

Where do you start with over thirteen hundred deals? Here are some tips!
Come back daily for new handpicked highlights, discover Partner Collections prepared by our friends across the world wide web, plus all-new dynamic and personalized game suggestions, and even advanced filters to help you own the hunt.

Definitely check out the GOG.COM exclusives including STAR WARS – Episode I: Racer (-25%) Jazz Jackrabbit 1 & 2 (-20%), SWAT 4 (-20%), The Suffering series (-33%), Theme Hospital (-85%), Gold Box classics like Eye of the Beholder in Forgotten Realms: The Archives (-66%) and finally Homeworld: Emergence (-50%) formerly known as Homeworld: Cataclysm.

Our favorites on sale include the likes of Pillars of Eternity 2 (-10%), Frostpunk (-10%) Cuphead (-15%), Into The Breach (-20%), What Remains of Edith Finch (-50%), West of Loathing (-25%), Darkest Dungeon (-60%), Firewatch (-60%), RUINER (-50%), Little Nightmares (-60%) and tons more! 

The #SummerGaming Sale will run through June 18, 10 PM UTC.

Xenonauts Free with at GOG and Summer Sale