The Dreams of Gerontius is all about puzzles and games.
Armchair treasure hunt books are a big motivator. The best is still the classic Masquerade by Kit Williams, but The [less classic] Merlin Mystery by Jonathan Gunson and Marten Coombe remains a source of intrigue for many. There are plenty of others in the genre of varying quality. I like board games, computer games and puzzles of all types.
I also have several personal projects, including an armchair treasure hunt book of my own that I’m working on. Maybe I’ll finish writing it one day!
Stay awhile, relax, and have a little gentle brain exercise.