Puzzle Ideas
Mechanisms that reward working it out.
Most paper puzzles are one of about seven shapes wearing different costumes, and knowing the shapes is more useful than collecting a hundred examples. What separates them is not theme but what the solver has to do:
Some ask you to look harder at something in front of you: a word hidden in a paragraph, a letter circled on each of six cards. Some ask you to put things in an order: gems in rainbow order, events on a timetable. Some ask you to do a small piece of arithmetic dressed as pictures. Some need a physical action, like holding a page against a window or a mirror. And some are pure substitution: A is 1, or a wheel that turns one alphabet against another.
Mix the shapes rather than the themes. Four code puzzles in a row in different costumes is still four code puzzles, and the second one stops being interesting. Four different shapes means a different person in the room takes the lead each time, which is the whole reason for playing together.
Guides

Puzzle IdeasPrintable Treasure Gems With a Hidden WordSix paper gems to hide around the house. Put them in rainbow order and the letters spell out where the treasure is.2 min read