Sale Star

Seekers of the Storm - DLC Content Sale Star is part of the Seekers of the Storm DLC. It is only available if the DLC is enabled when starting a run. Click for more info.Sale Star
First chest bought yields more than one reward. Usable once per stage.
Gain an extra item on the first chest opened per stage. Each additional Sale Star increases the chance of getting more items by 5%.
Rarity	Uncommon
Category	Utility CannotDuplicate HalcyoniteShrine
Stats
Stat	Value	Stack	Add
Extra Item Count	+100%	Linear	+5%

Seekers of the Storm - DLC Content Sale Star (Consumed) is part of the Seekers of the Storm DLC. It is only available if the DLC is enabled when starting a run. Click for more info.Sale Star (Consumed)
At the start of each stage, it transforms into Sale Star.
At the start of each stage, it transforms into Sale Star.
Rarity	Untiered
Category	Utility OnStageBeginEffect

The Sale Star is an Item in Risk of Rain 2, introduced in the Seekers of the Storm DLC.

The item allows one to gain an extra item on the first chest opened per stage. Each additional Sale Star increases the chance of getting more items up to 5 items at most. Upon using it for a purchase, the item is transformed into its consumed form and at the beginning of the next stage it becomes available again.

Notes

• Correction: The chance of getting more than 2 items is more complicated than the description says. See the Math section for more details.
• Sale Star only works with the following Chests: Small Chest, Large Chest, Legendary Chest, Category Chest, Large Category Chest, Adaptive Chest, Equipment Barrel, Rusty Lockbox, and Cloaked Chest.
  • A blue ring appears when the player is in range of an interactable compatible with this item and has any stacks available. This can also serve as a reminder to not use it up on low reward chests.
• If Sale Star is consumed for the stage and another one is picked up, the effect can be triggered again on the same stage, albeit only with taking into account any current Sale Star stacks.
• The extra items obtained can be different of rarities.
  • However, if this is used on an Adaptive Chest, all extra copies will match the selected item.
• Sale Star can be activated for an Adaptive Chest at two different points: when opening the chest and when selecting the item. If it is used when opening the chest, if the player who selects the item has no stacks the chest will remember the initial activator's stacks to drop multiple items. However, if the second activator has any stacks, these will determine how many items will be dropped.
• It requires 47 stacks of this item to always guarantee at least 3 drops, 114 for 4 drops, and 1980 for 5 drops. Any further stacks, however unrealistic, would have no further effect.
  • These boundaries are unaffected by luck. However, 57 Leaf Clover57 Leaf Clover
    Luck is on your side.
    All random effects are rolled +1 (+1 per stack) times for a favorable outcome. still has the effect that the chance for succeeding, for example, the first roll for 3 drops, ramps up more quickly even though it still attains 100% that 47 stacks. On the other hand, PurityPurity
    Reduce your skill cooldowns by 2 seconds. You are unlucky.
    All skill cooldowns are reduced by 2 (+1 per stack) seconds. All random effects are rolled +1 (+1 per stack) times for an unfavorable outcome. has the opposite effect.
  • By the time one obtains 114 stacks to guarantee at least 4 drops, the chance of getting 5 is already at 86%.
• The correct choice for the Artifact of Delusion is whichever drop is picked up last. This can affect the order the items should be picked up so the most valuable item will be the one to be duplicated.
  • There is a possible game-breaking sequence one should be wary of here. The 3 choices for the memory game are generated the first time the player interacts with the chest after it is reset. If the player then picks up any remaining drops belonging to that chest, they will be the correct choice. However, if this item had not already been selected in the original choice selection, the player will be stuck with 3 wrong choices.

Math

The number of extra drops is $2+bonusValue$.

If the number of stacks is 1, this value is 0.

If the number of stacks 2, it rolls up to 3 times:

• First success chance is 30%, if successful bonusValue is set to 1 and continues with the next roll.
• Second success chance is 15%, if successful bonusValue is set to 2 and continues with the next roll.
• Third success chance is 1%, if successful bonusValue is set to 3.

For 3 stacks or higher it applies the same procedure as for 2 stacks but the chance for each roll is increased by

$f(x)=1-{\frac {1}{0.05x+1}}$

Where $x$ is the amount of stacks.

Amount	2 Items	3 Items	4 Items	5 Items	Average # of Items
1	100%	0%	0%	0%	2
2	70.0%	25.5%	4.5%	0.04%	2.35
3	57.0%	31.0%	10.4%	1.7%	2.57
4	53.3%	31.9%	12.2%	2.6%	2.64
5	50.0%	32.5%	13.8%	3.7%	2.71
6	46.9%	32.9%	15.3%	4.9%	2.78
7	44.1%	33.0%	16.7%	6.2%	2.85
8	41.4%	33.1%	18.0%	7.5%	2.92
9	39.0%	32.9%	19.1%	9.0%	2.98
10	36.7%	32.7%	20.1%	10.5%	3.04
15	27.1%	30.7%	23.7%	18.5%	3.34
20	20.0%	28.0%	25.5%	26.5%	3.58

This table is made assuming no luck-modifying items.

Graph

Chance for the number of drops rewarded by a purchase.

Tips

• Since the first stack always guarantees a second item while the second stack averages to 2.35 items, in multiplayer it is more efficient to spread the stacks uniformly across the whole party.
• Since uncommon and legendary items can have a bigger impact compared to common items, it is recommended to use Sale Star for chests that guarantee at least uncommon rarity for drops.
• Using it on an Equipment Barrel gives the player better chances to find a specific equipment they have in mind.

Lore

Shipping details
Order: Discount Star Charm
Estimated Delivery: 05/11/2057
Shipping method: Standard

Shipping Address:
UES Shipyard
Freight Customs Center
Luna

Shipping details

//--AUTO-TRANSCRIPTION FROM UES [Redacted] --//

Two UES Cadets cluster behind their scanning machine to stare at a small, simple-looking star.

"What IS it though? I thought it threw an alert?"

"Well it’s not anymore, maybe the scanner is finally goin’." One Cadet flips the star around and squints. "I think there’s a B carved into it…"

"Wish it would, they won’t send us a new one until this fossilizes." The other Cadet slaps the scanner.

A visiting General turns the corner and cuts in, "Problem, Cadets?"

Both Cadets squeal and snap to attention, saluting the General. The suspicious star clatters down the approval chute with a loud affirming buzz.

The General turns to hide a grin as he leaves, "As you were."

The Cadets exchange a nervous glance over the chute. Probably nothing.

Version History

Seekers of the Storm

• Added New Item: Sale Star