Hey, James!
I actually just finished up a new version of Puzzle Depot, the latest build includes endgame and epilogue content. We're definitely closing in, I have some backer content to finish up but the list grows shorter!
I know it's been a long while and I appreciate you checking in. I'd like to put together another Kickstarter update before much longer, I think we're about due for it. I'll be sure to update the itch.io page when that happens!