Pan-Pan was sent over by my friends at GOG to take a look at. I had never heard of it before, but the visuals are so interesting it was begging to be played.
Infinium Strike is one Tower Defence game that actually impressed me somewhat. It was like being in command of the Battlestar Galactica, and it seems it has sold well enough to warrant a DLC.
It seems GOG support got it completely wrong on The Witcher 3 for Linux. A different person inside GOG has said they have no idea why a previous staff member said TW3 was never planned.
Not my usual sort of topic, but since it's proving popular it's probably worth highlighting. No Man's Sky the brand new survival sim from Hello Games works rather well in Wine on Linux.