The Rook Islands are littered with collectibles: Relics, Letters of the Lost, and Memory Cards. Relics are ancient artifacts that provide insight into the island's history. Letters of the Lost are poignant messages from Japanese soldiers, offering a glimpse into their final moments. Memory Cards are data chips containing information about Vaas's operations. Collecting these items grants XP and money. Finding all of them unlocks achievements/trophies and provides a deeper understanding of the game's lore. Use unlocked radio towers to reveal their locations on your map.
