I’m Holger Sindbaek and I’m the creator of these Jigsaw puzzles games. I didn't invent jigsaw puzzles, but I made a nice online version of it.
All the jigsaw puzzles you see are available as a free download both for Windows™, Mac™, Linux™, iOS or Android.
If you like puzzle games I can highly recommend Mexican Train Dominoes game. It's a fun an free puzzle game where you play agains three opponents. You can choose to play against the computer and even invite your friends to play!
If playing dice is more your thing, I'd suggest trying out Bunco. It's a game of chance traditionally played by 12 people and it's loads of fun!