GOG.com has got in there early with its Winter Sale 2017, including a free giveaway of the excellent Grim Fandango Remastered. You’ll have to be quick to grab the free game though as it’s a time-limited offer.
Aside from this, GOG is running a whole load of deals, including The Witcher 3: Game of the Year edition down to just $18.39. Considering the number of hours you’ll get out of it, that’s an absolute steal.
The GOG Winter Sale runs through until December 26th and there’ll be a rotating list of deals to check back on each day. I suspect once the Grim Fandango giveaway is up then there may be more freebies to come as well.