Treasure Chests are scattered throughout the worlds of the Kingdom Hearts series. Most items are found within chests, though there are a few that are obtained as event rewards, bought from shops, or found by interacting with the scenery of a world.
In Kingdom Hearts Chain of Memories and Kingdom Hearts Re:Chain of Memories, treasure chests are only available using either Calm Bounty, Guarded Trove, False Bounty, or Key to Rewards cards (except for a single, natural chest in the 100 Acre Wood), while no chests appear at all in Kingdom Hearts coded and Kingdom Hearts Re:coded, as they are replaced by Prize Blox, or in Atlantica in Kingdom Hearts II.
Design
Chests come in two sizes, large and small ones. Their specific design and appearances are based on the world they appear in.
Small chests
In Kingdom Hearts, small chests contain items, synthesis materials, accessories, and Torn Pages. In Kingdom Hearts II, small chests can contain items, synthesis materials, accessories, and non-Keyblade weapons. In Kingdom Hearts Birth by Sleep, small chests can contain commands and crystals.
Small Chest KH.png
A small chest as it appears in Kingdom Hearts
A small chest as it appears in Dive to the Heart, Twilight Town, Mysterious Tower, Radiant Garden, Land of Departure, and Realm of Darkness
A small chest as it appears in Beast's Castle
A small chest as it appears in Land of Dragons
A small chest as it appears in Olympus Coliseum
A small chest as it appears in Disney Castle
A small chest as it appears in Timeless River
A small chest as it appears in Port Royal
A small chest as it appears in Agrabah
A small chest as it appears in Halloween Town
A small chest as it appears in Christmas Town
A small chest as it appears in Pride Lands
A small chest as it appears in Space Paranoids
A small chest as it appears in the 100 Acre Wood
A small chest as it appears in The World That Never Was and the Garden of Assemblage
A small chest as it appears in Enchanted Dominion
A small chest as it appears in Dwarf Woodlands
A small chest as it appears in Castle of Dreams
A small chest as it appears in Disney Town
A small chest as it appears in Deep Space
A small chest as it appears in Neverland
A small chest as it appears in Keyblade Graveyard
Large chests
In Kingdom Hearts: Chain of Memories, large chests can contain cards or sleights. In Kingdom Hearts II, large chests can contain maps and key items. In Kingdom Hearts 358/2 Days, chests can contain panels and synthesis materials. In Kingdom Hearts Birth by Sleep, large chests can contain maps, recipes, and pieces of Xehanort's Report. The Spiderchest Unversed mimic large chests, although they do not replicate the designs exactly.
Large Chest KH.png
A large chest as it appears in Kingdom Hearts and Kingdom Hearts: Chain of Memories
Large Chest 2 KH.png
A second large chest as it appears in Kingdom Hearts and Kingdom Hearts: Chain of Memories
CO Large Chest.png
A large chest as it appears in Castle Oblivion
A large chest as it appears in Twilight Town, Mysterious Tower and Radiant Garden
A large chest as it appears in Beast's Castle
A large chest as it appears in Land of Dragons
A large chest as it appears in Olympus Coliseum
A large chest as it appears in Disney Castle
A large chest as it appears in Timeless River
A large chest as it appears in Port Royal
A large chest as it appears in Agrabah
A large chest as it appears in Halloween Town
A large chest as it appears in Christmas Town
A large chest as it appears in Pride Lands
A large chest as it appears in Space Paranoids
A large chest as it appears in the 100 Acre Wood
A large chest as it appears in The World That Never Was
GR Large Chest.png
A large chest as it appears in the Garden of Assemblage
Wonderland Chest.png
A large chest as it appears in Wonderland
A large chest as it appears in Enchanted Dominion
A large chest as it appears in Dwarf Woodlands
A large chest as it appears in Castle of Dreams
A large chest as it appears in Disney Town
A large chest as it appears in Deep Space
A large chest as it appears in Neverland
A large chest as it appears in Keyblade Graveyard