Zookeeper
A case on CSGORoll, first seen 2 Nov 2026. Every value is CSGORoll's own item price converted from Roll coins at the rate on the site page.
Price
$7.20
10.28 coins
Advertised RTP
90.93%
EV $6.54 from 18 items
Observed RTP, 30d
90.93%
5,759 openings, odds method
Variance
4.4×
of price², per opening
Tail share
17.1%
of openings carry half the EV
Below price
76.9%
of openings return less than the price
Advertised vs observedper window, 95% band and the advertised marker
observed, 95% bandadvertisedoutside bandsmall sample
Windowsthe test per window
Enough sample: 100 openings and 5 expected rare hits (odds method) or 1,000 openings (sample method).
Items, odds and values18 items · odds sum to 1 · observed counts over 5,759 openings, 30 days
Share of the expected value, most valuable first; colour is the item's rarity.
Values are CSGORoll'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
csgoroll:graphql boxes.slots.rate, 11 Nov, 08:26 UTC.Biggest dropsfrom this case, by value
★ Talon Knife | Slaughter (Field-Tested)knife · covertFUckIng noowb$7.2010.28 coins$466666 coins64.79x
Latest dropsnewest first
Dual Berettas | Dualing Dragons (Battle-Scarred)weapon · mil spec$7.2010.28 coins$0.290.42 coins0.04x
Observed RTP over timedaily, 30 days
Observed RTP, dailyAdvertised 90.93%
Catalog changesprice, advertised RTP and contents, per capture
| Captured | Price | Advertised | Items |
|---|---|---|---|
| 9 Nov, 01:53 UTC | $7.20 | 90.93% | 18 |
| 8 Nov, 23:33 UTC | $7.20 | 90.94% | 18 |
| 8 Nov, 17:30 UTC | $7.20 | 90.88% | 18 |
| 5 Nov, 22:45 UTC | $7.19 | 90.93% | 18 |
| 2 Nov, 21:39 UTC | $7.20 | 90.91% | 18 |
Each opening is tested against the capture in force when it happened; a price or odds change starts a new one.
listedcovert 0.2%legendary 0.1%extraordinary 0.1%rare 2.7%remarkable 5.0%mil spec 61.0%exotic 6.0%uncommon 24.9%best hit $466 (64.79x)