--- title: "Bone Collector case on CSGOBig: odds, RTP & drops" description: "Bone Collector ($14.55) on CSGOBig, a CS2 case site: advertised RTP 90.05% from 13 items with odds, observed 79.09% over 32 openings in 30 days." url: https://gambatracker.com/cases/csgobig/1224 rendered: 2026-11-11T14:58Z --- [Case sites](https://gambatracker.com/case-sites) / [CSGOBig](https://gambatracker.com/case-sites/csgobig) / [Bone Collector](https://gambatracker.com/cases/csgobig/1224) # [CSGOBig](https://gambatracker.com/case-sites/csgobig) · Bone Collector A case on CSGOBig, first seen 3 Nov 2026. Every value is CSGOBig's own item price converted from csgobig coin at the rate on the site page. [24h](https://gambatracker.com/cases/csgobig/1224?window=24h) [7d](https://gambatracker.com/cases/csgobig/1224?window=7d) [30d](https://gambatracker.com/cases/csgobig/1224) [All](https://gambatracker.com/cases/csgobig/1224?window=all) Price · $14.55 · 14.55 CSGOBIG\_COIN Advertised RTP · 90.05% · EV $13.10 from 13 items Observed RTP, 30d · 79.09% · 32 openings, odds method Variance · 11.6× · of price², per opening Tail share · 1 in 34 · of openings carry half the EV Below price · 88.4% · of openings return less than the price ## Advertised vs observed · per window, 95% band and the advertised marker observed, 95% band advertised outside band small sample 24 hours · 10 openings · below min 7 days · 32 openings · below min 30 days · 32 openings · below min since tracking started · 32 openings · below min -0.5% 113.8% 228.0% **Small sample.** 32 openings and 0.9 expected rare hits: below the 100 openings and 5 hits the test needs, so no verdict. ## Windows · the test per window | Window | Openings | Observed | Dev. | Method | | --- | --- | --- | --- | --- | | [24h](https://gambatracker.com/cases/csgobig/1224?window=24h) | 10 | 16.22% ±211.1 | — | odds | | [7d](https://gambatracker.com/cases/csgobig/1224?window=7d) | 32 | 79.09% ±118.0 | — | odds | | [30d](https://gambatracker.com/cases/csgobig/1224) | 32 | 79.09% ±118.0 | — | odds | | [All](https://gambatracker.com/cases/csgobig/1224?window=all) | 32 | 79.09% ±118.0 | — | odds | Enough sample: 100 openings and 5 expected rare hits (odds method) or 1,000 openings (sample method). ## Items, odds and values · 13 items · odds sum to 1 · observed counts over 32 openings, 30 days Share of the expected value, most valuable first; colour is the item's rarity. | Item | Odds | Value | EV share | Observed | Expected | Hot / cold | | --- | --- | --- | --- | --- | --- | --- | | [★ Butterfly Knife \| Safari Mesh (Factory New) knife · covert](https://gambatracker.com/items/butterfly-knife-safari-mesh-factory-new) | 1 in 400 | $677 677 CSGOBIG\_COIN | 12.9% | 0 | 0.1 | — | | [★ Huntsman Knife \| Tiger Tooth (Minimal Wear) knife · covert](https://gambatracker.com/items/huntsman-knife-tiger-tooth-minimal-wear) | 1 in 37 | $225 225 CSGOBIG\_COIN | 46.5% | 1 | 0.9 | — | | [StatTrak™ P250 \| Visions (Minimal Wear) StatTrak · weapon · #d32ee6](https://gambatracker.com/items/stattrak-p250-visions-minimal-wear) | 1 in 12 | $34.49 34.49 CSGOBIG\_COIN | 22.8% | 2 | 2.8 | 0.72× | | [Sticker \| STYKO (Foil) \| London 2018 sticker · #8847ff](https://gambatracker.com/items/sticker-styko-foil-london-2018) | 14.6% | $8.68 8.68 CSGOBIG\_COIN | 9.7% | 4 | 4.7 | 0.86× | | [StatTrak™ AK-47 \| Uncharted (Well-Worn) StatTrak · weapon · #4b69ff](https://gambatracker.com/items/stattrak-ak-47-uncharted-well-worn) | 15.0% | $3.59 3.59 CSGOBIG\_COIN | 4.1% | 8 | 4.8 | 1.66× | | [StatTrak™ AUG \| Tom Cat (Factory New) StatTrak · weapon · mil spec](https://gambatracker.com/items/stattrak-aug-tom-cat-factory-new) | 13.9% | $1.84 1.84 CSGOBIG\_COIN | 1.9% | 1 | 4.4 | 0.23× | | [Sticker \| Renegades (Holo) \| Katowice 2019 sticker · Mythical](https://gambatracker.com/items/sticker-renegades-holo-katowice-2019) | 10.6% | $1.37 1.37 CSGOBIG\_COIN | 1.1% | 3 | 3.4 | 0.88× | | [Sticker \| The 'Nader sticker · #4B69FF](https://gambatracker.com/items/sticker-the-nader) | 11.1% | $0.54 0.54 CSGOBIG\_COIN | 0.5% | 5 | 3.6 | 1.40× | | [StatTrak™ P90 \| Traction (Field-Tested) StatTrak · weapon · milspec](https://gambatracker.com/items/stattrak-p90-traction-field-tested) | 1 in 11 | $0.38 0.38 CSGOBIG\_COIN | 0.3% | 3 | 2.8 | 1.07× | | [Shadow Case container · Base Grade](https://gambatracker.com/items/shadow-case) | 1 in 17 | $0.34 0.34 CSGOBIG\_COIN | 0.2% | 4 | 1.9 | 2.06× | | [SCAR-20 \| Blueprint (Minimal Wear) weapon · #4b69ff](https://gambatracker.com/items/scar-20-blueprint-minimal-wear) | 1 in 25 | $0.19 0.19 CSGOBIG\_COIN | 0.1% | 0 | 1.3 | 0.00× | | [Sticker \| FURIA (Glitter) \| Rio 2022 sticker · #8847FF](https://gambatracker.com/items/sticker-furia-glitter-rio-2022) | 1 in 34 | $0.15 0.15 CSGOBIG\_COIN | 0.0% | 1 | 0.9 | — | | [UMP-45 \| Roadblock (Battle-Scarred) weapon · #4b69ff](https://gambatracker.com/items/ump-45-roadblock-battle-scarred) | 1 in 67 | $0.12 0.12 CSGOBIG\_COIN | 0.0% | 0 | 0.5 | — | Values are CSGOBig'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 `csgobig:api/cases/getDetails?id=1224`, 11 Nov, 13:05 UTC. ## Biggest drops · from this case, by value **No drops yet** No drop from this case seen yet. ## Latest drops · newest first [All Latest drops →](https://gambatracker.com/drops?casino=csgobig&case=1224) [StatTrak™ AK-47 | Uncharted (Well-Worn) StatTrak · weapon · #4b69ff](https://gambatracker.com/items/stattrak-ak-47-uncharted-well-worn) Hidden $14.55 14.55 CSGOBIG\_COIN $3.59 3.59 CSGOBIG\_COIN 0.25x 2026-11-11 11:39 UTC [StatTrak™ P90 | Traction (Field-Tested) StatTrak · weapon · milspec](https://gambatracker.com/items/stattrak-p90-traction-field-tested) Hidden $14.55 14.55 CSGOBIG\_COIN $0.38 0.38 CSGOBIG\_COIN 0.03x 2026-11-11 11:39 UTC [Sticker | The 'Nader sticker · #4B69FF](https://gambatracker.com/items/sticker-the-nader) Hidden $14.55 14.55 CSGOBIG\_COIN $0.54 0.54 CSGOBIG\_COIN 0.04x 2026-11-11 11:39 UTC [StatTrak™ AK-47 | Uncharted (Well-Worn) StatTrak · weapon · #4b69ff](https://gambatracker.com/items/stattrak-ak-47-uncharted-well-worn) Hidden $14.55 14.55 CSGOBIG\_COIN $3.59 3.59 CSGOBIG\_COIN 0.25x 2026-11-11 11:39 UTC [Sticker | Renegades (Holo) | Katowice 2019 sticker · Mythical](https://gambatracker.com/items/sticker-renegades-holo-katowice-2019) Hidden $14.55 14.55 CSGOBIG\_COIN $1.37 1.37 CSGOBIG\_COIN 0.09x 2026-11-11 11:39 UTC [Sticker | Renegades (Holo) | Katowice 2019 sticker · Mythical](https://gambatracker.com/items/sticker-renegades-holo-katowice-2019) Hidden $14.55 14.55 CSGOBIG\_COIN $1.37 1.37 CSGOBIG\_COIN 0.09x 2026-11-11 11:39 UTC [Sticker | FURIA (Glitter) | Rio 2022 sticker · #8847FF](https://gambatracker.com/items/sticker-furia-glitter-rio-2022) Hidden $14.55 14.55 CSGOBIG\_COIN $0.15 0.15 CSGOBIG\_COIN 0.01x 2026-11-11 11:39 UTC [StatTrak™ AK-47 | Uncharted (Well-Worn) StatTrak · weapon · #4b69ff](https://gambatracker.com/items/stattrak-ak-47-uncharted-well-worn) Hidden $14.55 14.55 CSGOBIG\_COIN $3.59 3.59 CSGOBIG\_COIN 0.25x 2026-11-11 11:39 UTC [Shadow Case container · Base Grade](https://gambatracker.com/items/shadow-case) Hidden $14.55 14.55 CSGOBIG\_COIN $0.34 0.34 CSGOBIG\_COIN 0.02x 2026-11-11 11:39 UTC [Sticker | STYKO (Foil) | London 2018 sticker · #8847ff](https://gambatracker.com/items/sticker-styko-foil-london-2018) Hidden $14.55 14.55 CSGOBIG\_COIN $8.68 8.68 CSGOBIG\_COIN 0.60x 2026-11-11 11:39 UTC ## Catalog changes · price, advertised RTP and contents, per capture | Captured | Price | Advertised | Items | | --- | --- | --- | --- | | 3 Nov, 04:27 UTC | $14.55 | 90.05% | 13 | Each opening is tested against the capture in force when it happened; a price or odds change starts a new one. listed covert 3.0% #d32ee6 8.7% #8847ff 14.6% #4b69ff 20.4% mil spec 13.9% Mythical 10.6% #4B69FF 11.1% milspec 8.7% Base Grade 6.1% #8847FF 2.9% best hit — 18+ **Case opening is gambling with skins as the currency.** At 90.1% RTP, every $100 put into cases returns $90.05 on average: an expected loss of $9.95 per $100, before any one lucky or unlucky opening. A big drop here says nothing about the next one. [BeGambleAware](https://www.begambleaware.org/) [Help & limits](https://gambatracker.com/responsible-gambling) How these figures are produced and labelled: https://gambatracker.com/llms.txt