Great Treasure Chest

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Great Treasure Chests are rare chest variants with far better rewards than the regular Treasure Chests. They have a 1/1000 chance to spawn in place of a regular treasure chest.

When generating a new area, there are specific locations that can spawn an Extra Max Health or a chest. For each of these places there is a 2/5 chance of a chest spawning. Given a chest has been picked, there is a further 1/10 chance that a Mimic spawns instead, and 1/1,000 chance of a great chest.

As a result, the probability of getting a great treasure chest from any given possible heart spawn location is 9/25,000 (0.036% or ~1/2777).

There are also some guaranteed chest locations which can spawn in the Mines (see the Gallery below) which have a 1/2000 chance to spawn as a Great Treasure Chest instead. Having the Curse of Greed active increases the chance of this significantly to 1/50.

Another guaranteed spawn occurs after casting (and surviving) The End of Everything, which can be used as a way to obtain a different kind of ending. A Great Chest is also spawned upon the death of Syväolento.


Contents

Upon opening, items are spawned based on the following rules.

Category Item
Chance Outcome Chance within category Item Overall chance
(for first roll)[1]
1/10
10%
Item Potion.pngItem Potion.pngItem Potion.png
Potions
3/10 secret material potion and 2× regular potions 3%
7/10 secret material potions and 1× random material 7%
3/100
3%
Item kakke.pngItem waterstone.png
A Rare Stone
29/30 Item waterstone.png Vuoksikivi 3.22%
1/30 Item kakke.png Kakkakikkare 0.11%
21/100
21%
Wand 0810.png
A Wand
(Tier 4-10)
1/4 Tier 4 wand 5.25%
1/4 Tier 4 non-shuffle wand 5.25%
1/4 Tier 5 wand 5.25%
3/20 Tier 5 non-shuffle wand 3.15%
3/50 Tier 6 wand 1.26%
3/100 Tier 6 non-shuffle wand 0.63%
1/100 Tier 10 wand 0.21%
21/100
21%
Heart extrahp default.gif
A Health Pickup
9/10 Extra Max Health 18.9%
9/100 Large Extra Max Health 1.89%
1/100 Full Health Regeneration 0.21%
7/10
5%
A rain of Gold nuggets   5%
38/100
38%
Double Loot Roll this entire loot table again two more times, adding the results to the loot.[1] 38%
2/100
2%
Triple Loot Roll this entire loot table again three more times, adding the results to the loot.[1] 2%
1/100,000
0.001%
First roll only. (Cannot be selected if either of the "roll again" options above have previously been picked.) 0.001%
Sampo.png
The Sampo
1/100,000,000
0.000001%
First roll only. (Cannot be selected if either of the "roll again" options above have previously been picked.) 0.000001%
Item Orb.png
An Orb

The first and third columns are the individual probabilities for a given category, and item within that category, each roll. The last column gives the overall probability of that outcome relative to all other outcomes (for a single pass through the loot table[2]).

When the chest rolls the "roll again" options repeatedly and finally stops, the potions are selected at the end of the script when it actually spawns the entities. This is why, no matter how many times it loops on itself, it only creates up to 3 different potions each time you open it. As a result, when it repeatedly rolls the random potion options, it creates a large cluster of the same few potions rather than a more random selection.

The wands get much more complex code, so while rolling the same variation of a wand repeatedly is unlikely, it is still possible.

After the 1/100,000 chance to drop the Sampo another 1/1000 chance to replace the Sampo with an Orb occurs. Thus making the chance for orbs a 1/100,000,000 (1 in 100 million) chance. [3][4]

Loot Searchers

Tips

  • Be very careful as these chests have a high chance of pulling from the random material pool, which can rarely spawn Creepy Liquid (among many other odd or dangerous materials), potentially ending a run very shortly thereafter.
  • If you spawn a Great Treasure Chest via The End Of Everything, focus on killing the Jättimato; if they destroy the chest, it may open and break the potentially very hazardous potions contained inside.

Gallery

The guaranteed chest spawn locations in the Mines

See Also

History

Notes

  1. 1.0 1.1 1.2 The "roll multiple" possibilities in the loot table can roll themselves recursively. It's possible for the chest to open three times, only for it to select roll three times or roll two times repeatedly, causing these chests to rarely explode with items until running out of extra rolls.
  2. Combined rolls don't take into account the chance that they are rolled by thrice or twice or more openings as this would get a lot more complicated as they can then roll the twice or thrice roll again.
  3. Due to an overlap in RNG game seed choice, Sampos and Orbs can only naturally spawn at guaranteed chest positions. This means that no natural Sampos or Orbs can spawn outside of the Mines or their Tower variant.
  4. Due to coincidence in the PRNG used for Noita randomness, there is a subtle correlation between consecutive random rolls, making the chance for orbs to replace the Sampo closer to 1/180.