See exactly what it takes to build something before you commit to it. Pick any item and Craft Calculator recursively breaks its recipe down into every raw and intermediate ingredient, letting you drill into (or collapse) any sub-component to swap between crafting it yourself or counting it as a raw input. Enter what you actually have on hand and it tells you how many you can make, which single ingredient is holding you back, and how long the run will take - correctly combining ingredients
Providing the player with new tools or adjusting the game interface, without fundamentally changing gameplay.