Yep, but the Deluxe Edition Upgrade for STASIS was never mentioned nor does it appear in the 'RELATED GAMES' column on the right hand side of the announcement news, so you could say this particular DLC's sale was unannounced. :P

Additionally, the Upgrade was not on sale when I checked yesterday morning. Thank you all for the announcement!

From GOG reddit:
Constructor being free has been extended until 2-4-17 at 11:59 PM PST.
use the code to get a free copy: https://www.gog.com/redeem/ZVSYRAFB

And about Stasis: Deluxe Edition Upgrade, it was not discounted initially, so when I found it became 60%, I post it here.

And if one doesn't follow their reddit (was it announced on any of their social media?) they won't find out about it; how lovely.

Not to mention that they could have extended the GA properly and reinstate the invalid gift codes.

*shakes head*


EDIT: Just saw it was also posted on their Facebook. Whih means probably also on Twitter. So basically everywhere but here.

*speechless*

The GOG-Galaxy-only Free Demo:
https://www.gog.com/game/xenonauts_2_demo

It is funny that after buying this, my GOG collection number did not increase.
UPDATE: After several minutes and refresh the page, my collection number do increase. :-P

Official announcement is here:
http://www.goldhawkinteractive.com/forums/index.php?/topic/13499-xenonauts-2-free-public-builds/

Xenonauts 2 is currently available as a free public build on GOG Galaxy. We have made these versions of the game free because we want to gather as much feedback on the basic mechanics and the stability of the game early in development, but we do not believe the game is sufficiently advanced enough to warrant us charging for it. Please download the game if you want to support the team and help shape the development of the game rather than because you want a polished and fun game.

To be clear - the game is currently free because we don't think it is good enough to charge money for. Don't expect too much!

This free public demo of the game will not grant you a copy of the final game, and it will be deleted from your accounts when the game enters the paid phase of Early Access on both Steam and GOG. At that point you will need to purchase the game normally to continue to receive builds of the game. It is possible to pre-order the game before this point (i.e. if you want to support the developers) but there's no advantage for doing this; the only change is that your access to the game will not be cut off when the game enters the paid stage of development.

Galaxy-only? Oh boy! Screw this client to hell and back.

Some people just report that the key will keep working for another 48 hours.
I checked it and the Expire date showed Feb 4, 2027. (Yep, 2027)

Since I have had Constructor, I have no idea if it still working.
Try it yourself!

Blade & Bones is 35% off now. No idea why.

The key seems still working.

50% off: Okhlos: Omega
28% off: Okhlos: Omega Olympus Edition
0% off: Okhlos: Omega Olympus Edition Upgrade

Buy Earthlock: Festival of Magic only(with 40% off) will be $17.99. Buy the base game AND all DLCs will be $21.16. (54% off)

Little King's Story is 40% off now.
If it is syncing with steam, the offer may disappear in 130 minutes.

It's actually a re-launch with hopefully a technically competent PC port now:
http://xseedgames.tumblr.com/post/156725636690/little-kings-story-pc-relaunch-guest-blog

Firewatch 50% off Anniversary promo, same as Steam discount which activated a half day earlier. +31 hours remain on the Steam promo, Steam version also has Soundtrack DLC available.

Yes, I believe part of that fix was done by Durante who is famous for his fixes for various other PC ports of Japanese games such as Dark Souls for example.