Good work for a week game jam! Music and visuals are pretty atmospheric! Though the only relation to the Game Dev theme is the "idea notes" that you have to collect, I guess. It was confusing without a tutorial at the beginning, figured out to read a description on itch.io page. Overall it's a fun little game!
You can watch my playthrough at https://www.twitch.tv/videos/326737312?t=01h12m52s
Also be sure to rate my game too https://itch.io/jam/blackthornprod-game-jam-1/rate/319192