The Portable Freeware Collection Forums

There are several threads here at TPFC that link to Puzzles and Mazes.

Here are two more pages, with collections of free portable puzzles and maze games.
They are portable because they use JavaScript and/or Java:

Simon Tatham's Puzzles: https://www.chiark.greenend.org.uk/~sgtatham/puzzles/ standalone programs

http://www.logicmazes.com/ Run in the bowser. I assume ( ) they work, but since Java is not cooperating well with my browser ... I don't know!

On a related note, and as a fan of Simon Tatham's Puzzle pack, I put together a package of them all with a simple open source launcher with screenshots of each puzzle for easy navigation. It also includes the legacy 32-bit ones for folks who need them and it'll use those automatically on machines that require them: https://portableapps.com/apps/games/puz ... n_portable