Press B and your field book comes up, held in both gloved hands and open at Crafting. The pack’s crafting tab opens it too. The mouse moves a pencil over the pages: click a category, a card or the search line and type.

Craft makes a hand recipe there and then. Lay Out puts a ground recipe’s parts down in front of you to strike or bind. Each card shows what it needs against what you carry, and the skill level it asks. The book has its own drawings, leather and page sounds, and its pictures are in color. Recipes you cannot make yet show the same picture faded gray under a padlock.

Q and E or the tabs turn the pages, the wheel brings the book closer, and B or Escape puts it away. The world keeps going and you can walk while you read. Later it gained a Camp page with the campfire and the fire ring, and in your own world a free build box on every card that first gives you whatever the card is missing, so you can test anything without gathering. Notes stayed blank until October 8, when its pages took the game’s keys.