Houdini's Challenge

For portable/mini escape rooms, this is about as bare bones as they come, but it's not without it's charms. With a bunch of nested boxes and traditional locks, you won't find any tech here, but the puzzles are fairly clued, minus perhaps one that leans on some outside info. It's a thin or non-existent story, but it's a worthwhile thing to do if you have time to kill.