For those who missed it on GMG,I received a coupon from support to buy this game for free.
Since I managed to get it the other day,I will leave this code here so someone can get the game.

So create an account using this link if you have not one (or use your existing account) and you will gain 2 € after your first purchase

http://www.greenmangaming.com/?gmgr=lolafiwe

put Earth 2160 in your basket,then apply this code

PMVDM-RCOQ3-ZDUMO

Enjoy :)

Very generous of you, thanks! I've been meaning to get this on GOG but GMG is close enough, I guess.

Thanks again!