3 Puzznic "enhanced" clones for Windows, by the same author (Filippos, mentioned either in the readme or in the in-game About box) available at:
Christmas Puzznic 2
YT video for CP2 (that's how I have learnt about it):
[ Show youtube player ]
Compared to Puzznic, they keep the basic gameplay idea but add various elements affecting the blocks such as teleporters or anti-grav units.
Via the config. files or in-game settings you can replace/change the music used in-game (in case you get tired of Jingle Bells
You can also create custom levels and I believe you can then share them by sharing your custom.dat file.