Thanks for playing! By the river is a good place to ponder your next move ;)
There’s some discussion on the puzzles in the day 10 dev log as well as (spoilers) a puzzle dependency chart that shows everything you have to do to reach the end.
Your comment brings up a little easter egg. In this game you can in fact TAKE YE CAT. (Or, for example, OPEN YE TRAPDOOR or TURN ON YE RADIO or QUIT YE GAME.)