Day 4 - Progress! Creatures spawn, can detect and flee the player, and the player has two skills - Listen and Hide - to help sneak up on them.
The only trouble is that I'm not sure it's fun yet - so much of detection is probability based, which isn't especially engaging. I'm hoping that adding more enemies, quests, crafting, and more skills will make this feel more lively. That's my area of focus for today, and likely for the rest of the week.