The Desert Island Treasure Cache is an item that can be dug up with a Shovel on any Desert Island. It is generally hidden under a pile of sand marked with a red or black cross. It can be turned into a Treasure Hunter to receive a quest reward.
- Gold (common)
- Rough Topaz (uncommon)
- Rough Ruby (uncommon)
- Rough Diamond (rare)
- Ornate Gemstone Ring (rare)
- Chronometer (rare)
- Ceremonial Chest Key (extremely rare)
- Obtaining this item for the first time lets you complete the "Treasure Tracker" Steam achievement.