Butterfly Effect

A case on CSGOEmpire (Featured), first seen 2 Nov 2026. Every value is CSGOEmpire's own item price converted from Empire coins at the rate on the site page.

Price
$67.59
110 coins
Advertised RTP
91.20%
EV $61.64 from 19 items
Observed RTP, 30d
—
no counted openings
Variance
0.5×
of price², per opening
Tail share
32.6%
of openings carry half the EV
Below price
51.1%
of openings return less than the price

Advertised vs observedper window, 95% band and the advertised marker

No counted openings yetOpenings inside battles and free cases are listed but never counted.

Windowsthe test per window

WindowOpeningsObservedDev.Method
24h0———
7d0———
30d0———
All0———
Enough sample: 100 openings and 5 expected rare hits (odds method) or 1,000 openings (sample method).

Items, odds and values19 items · odds sum to 1 · observed counts over 0 openings, 30 days

Share of the expected value, most valuable first; colour is the item's rarity.
ItemOddsValueEV shareObservedExpectedHot / cold
★ Butterfly Knife | Slaughter (Factory New)knife · covert1 in 10,000$1,531 2,492 coins0.2%00.0—
★ Butterfly Knife | Ultraviolet (Minimal Wear)knife · covert1 in 4,000$921 1,499 coins0.4%00.0—
★ Butterfly Knife | Case Hardened (Minimal Wear)knife · gold1 in 5,000$902 1,469 coins0.3%00.0—
★ Butterfly Knife | Lore (Well-Worn)knife · covert1 in 6,667$869 1,415 coins0.2%00.0—
★ Butterfly Knife | Night (Field-Tested)knife · covert1 in 3,333$614 1,000 coins0.3%00.0—
★ StatTrak™ Karambit | Blue Steel (Field-Tested)StatTrak · knife · Immortal1 in 2,273$551 897 coins0.4%00.0—
★ Talon Knife | Damascus Steel (Factory New)knife · covert1 in 1,250$429 698 coins0.6%00.0—
★ Stiletto Knife | Night Stripe (Factory New)knife · covert1 in 556$243 396 coins0.7%00.0—
★ Classic Knife | Blue Steel (Field-Tested)knife · covert1 in 225$153 248 coins1.1%00.0—
★ Survival Knife | Blue Steel (Field-Tested)knife · gold1 in 70$121 197 coins2.8%00.0—
★ Moto Gloves | Cool Mint (Battle-Scarred)gloves · gold1 in 27$104 169 coins6.3%00.0—
★ Huntsman Knife | Stained (Battle-Scarred)knife · #ffd7001 in 17$97.42 159 coins9.5%00.0—
★ Shadow Daggers | Ultraviolet (Field-Tested)knife · covert1 in 13$91.93 150 coins11.2%00.0—
★ Gut Knife | Ultraviolet (Field-Tested)knife · Covert13.1%$84.68 138 coins18.0%00.0—
★ Shadow Daggers | Bright Water (Minimal Wear)knife · covert16.3%$78.90 128 coins20.9%00.0—
MAC-10 | Case Hardened (Field-Tested)weapon · restricted15.2%$66.68 109 coins16.4%00.0—
FAMAS | Prime Conspiracy (Battle-Scarred)weapon · #8847ff1 in 10$41.63 67.77 coins6.6%00.0—
CZ75-Auto | The Fuschia Is Now (Field-Tested)weapon · Classified1 in 12$17.88 29.1 coins2.5%00.0—
AWP | Mortis (Factory New)weapon · Legendary17.8%$6.14 10 coins1.8%00.0—
Values are CSGOEmpire's own item prices; EV share = odds × value ÷ EV. Hot / cold compares observed drops of each item with odds × openings; small expected counts are left blank. Odds read from csgoempire:caseopening/case.chance, 11 Nov, 15:30 UTC.

Biggest dropsfrom this case, by value

No drops yetNo drop from this case seen yet.

Latest dropsnewest first

No drops yetNo drop from this case seen yet.

Observed RTP over timedaily, 30 days

No history yet

Catalog changesprice, advertised RTP and contents, per capture

CapturedPriceAdvertisedItems
2 Nov, 21:38 UTC$67.5991.20%19
Each opening is tested against the capture in force when it happened; a price or odds change starts a new one.

listedcovert 24.6%gold 5.2%Immortal 0.0%#ffd700 6.0%Covert 13.1%restricted 15.2%#8847ff 9.7%Classified 8.5%Legendary 17.8%