I really enjoyed reading through Tidemark. There's been a lot of thought and effort put into this clearly, and I like the cover, internal art and tokens.
When I saw 'survival game' and the cool art, I immediately thought I was heading towards mechanics like starvation, dehydration, getting the chills, or heatstroke, scurvy, infection, poisoned and while there's a little in-game, it's definitely more survival in narrative theme (very cool narrative write up at the start by the way!) than survival mechanics. Which is still great!
Other things I really liked: the backgrounds, the throwing forms, the Escape scenario when someone gets too big for their (tin?) boots, and again the art is really pleasing to me.