One of my very first posts on this message board, posted almost exactly 9 years ago, was about
other good puzzle games. Over 4 years the thread grew to 10 pages long so I'm sure there's a lot of good games in there, although they won't be the most recent.
Anyway, to add something to this thread, I would recommend
Fish Fillets and
Fish Fillets 2. The first one is free, and the second one is well worth a purchase. The only complication is that a few fundamental gameplay characteristics changed between the two, which makes it a bit tough to transition from one to the other, but both have some extremely well-designed puzzles and pretty good production values as well. I believe the sequel is on Steam as well.
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"
He who is certain he knows the ending of things when he is only beginning them is either extremely wise or extremely foolish; no matter which is true, he is certainly an
unhappy man, for he has put a knife in the heart of wonder."
-- Tad Williams