Strongbox

Strongboxes are a special type of loot container found throughout Wraeclast. When opened, a strongbox will release groups of monsters to surround and attack the character. Only once all of the ambushing monsters are slain will a strongbox relinquish its loot. The monsters released by a strongbox also drop loot and grant experience when killed. Monsters not directly summoned by the strongbox, such as Spitters emerging from Shield Crabs, or raised undead, do not need to be killed to unlock the strongbox.

Variations

Strongboxes come in different base types which determine the kinds of items that can normally be obtained from them. Modifiers can further alter the loot contents, such as granting additional rare items or gems.

With 2218 strongboxes pool, done via Monstrous Treasure prophecy, users expect the following kind of distribution. Note that test was made in Tier-13 and higher maps, where Cartographer's strongboxes cannot spawn at that time. This experiment was done in 2016, which may not reflect the current spawn rate of the game.

Base Type	Contents	Count	Spawn rate
Arcanist's Strongbox	Currency that do not affect quality	96	4.3%
Armourer's Strongbox	Armour, The Body, The Mayor	132	6%
Artisan's Strongbox	Currency that affect quality	155	6.9%
Blacksmith's Strongbox	Weapons	125	5.7%
Cartographer's Strongbox	Maps, The Cartographer	-	-
Diviner's Strongbox	Divination Cards	42	1.9%
Gemcutter's Strongbox	Gem, The Gemcutter	74	3.3%
Jeweller's Strongbox	Amulets, Rings, Belts, Jewels, Hubris	167	7.5%
Large Strongbox	Assorted items (increased quantity)	104	4.7%
Ornate Strongbox	Assorted items (increased rarity)	62	2.8%
Strongbox	Assorted items	1247	56.3%
Vaal Reliquary	Assorted corrupted items, Vaal Orb	-	-
Unique	Special	14	0.6%

Like chests, increased Item Quantity from gear does not increase the number of items dropped from a strongbox. However, map quantity and the number of players do increase the number of items dropped from most strongboxes. The only exception is the Cartographer's Strongbox, where the number of players does not increase the amount of map drops.