In the past "Professor Layton" games were my go to for stealing puzzles as there's plenty of walkthroughs that tell you all the puzzles and solutions, twist them so they fit in whatever setting and there's some nice easy puzzles for an encounter My "Demon/Archon" statues puzzle I made up, as I did the riddles, but I stole the mirrored numbers runes for the doors puzzle straight from Stargate SG1