Chests[]

An image of an opened chest
Chests are in-game boxes that spawn at the end of almost every Event. They contain loot ranging from general items, Equipment, Schematics, Weapons, Mantra Modifiers, and very rarely, Enchanted gear. Every area has their own lootpool, with some items being exclusive to one area, while others being found across several areas. For example: A chest dropped from a Songseeker Wilds random event may contain items such as the Katana, the Canor Fang or the Glassdancer Wraps. However, chests that have dropped over in Erisia would contain items such as the Stilleto or the Pathfinder Arch-Sorcerer Schematic. Though, you can find a Blindfold in both areas. If you spawn near a chest, you can not open it.
Loot inside a chest is shown with different colors depending on their rarity, ranging from common to enchanted:
- General items such as Consumables, Gems, Mantra Modifiers, Elemental Ingredients, etc. are colored as dark green.
- Uncommon items are colored as pastel yellow.
- Rare items are colored as red. Though despite being rare, they're very common in The Depths and Hive
- Legendary Gear, Schematics or Equipment are colored as bright cyan.
- Mythical Items such as Legendary Weapons, Enchant Stones/Grease, and some Equipment are colored as bright purple.
- Unique items are colored as deep magenta.
- Relics are colored as a bright green.
- Enchanted items are colored as white.
The color of a chest depends on where you got it from, consisting of four variations as of current version.
- A brown chest with silver metal parts, found commonly in the Etrean Luminant.
- A gold chest with gold metal parts, found commonly in the East or from turning in pure ores.
- A cyan chest with green-white metal parts, found commonly in the Depths/Boss Fights.
- This chest, along with the gold chest, can also be found through fishing.
- A big neon pink chest, found in New Kyrsa.
Chest mimics (more commonly known as mimics or trick chests) can spawn around the Eastern Luminant, and releasing beasts that were even thought to just stay around the Depths. These include:

A Mimic Chest
Sacks[]

An image of a sack
Sacks are in-game bags that spawn after a player has died. They contain a stash of items from the deceased player's inventory, but not all as there is a limit for how many items there could be in the sack.
Similar to chests, loot inside the sack will appear in different colors depending on the rarity of the items sorting from Legendary to Common. It is noted that the sacks despawn after ~15 minutes.

Mercille
Carriable sacks (similar to the Summer Company's gunpowder boxes) can spawn around Starswept Valley. One can turn these into Mercille, in the Summer outpost nearby Meteor Isle, for a chest containing good tier loot.