The Collectopedia is a game mechanic in Xenoblade Chronicles X. It is set in the layout of a collection inventory, with a slot for each available collectible in a certain region. Once either a row or a full category are collected, the party is rewarded with an item; a weapon or an armor. Once a full region is collected, the party is rewarded with a probe. There are ten types of collectibles but only three to six types can be listed in a collection. Each collectible has a precise appearance rate: common, rare, unique, or prime, sold for 100, 200, 300, or 400 Credits respectively.
When a collectible case with a displayed star is registered for the first time, the Lucky Panel will appear and 2 BP will be rewarded.
- Common (grey) sold 100 Credits
- Rare (blue) sold 200 Credits
- Unique (green) sold 300 Credits
- Prime (gold) sold 400 Credits