Deponia is free on Steam and many Daedalic games are heavily discounted
Daedalic was widely viewed as the inheritor of LucasArts' point-and-click adventure crown a decade or so ago, when it was putting out some truly great adventure games. One of those, Deponia, is free on Steam right now — literally free until March 16. I really enjoyed the first Deponia: a slapstick farce about Rufus, an unlikable clown who endures a number of amusingly unpleasant outcomes while trying to save a woman who's fallen into his literal garbage-dump world from the Utopian space station above.
The Deponia trilogy tailed off pretty sharply through the sequels, which I honestly wouldn't recommend. Daedalic is holding a publisher sale on Steam with major markdowns. Night of the Rabbit is 90% off ($2.49), while Edna and Harvey: Harvey's New Eyes and The Dark Eye: Memoria are $2 each.
Chains of Satinav is cheap too, and Ken Follet's The Pillars of the Earth, The Whispered World Special Edition and Silence are all down to $2. There’s plenty of newer stuff as well for point-and-click fans.
deponia, steam, daedalic, point-and-click, rufus, memoria, edna, satinav, ken follett, publisher sale