--- title: "Volcano case on CSGOBig: odds, RTP & drops · gambatracker" description: "Volcano ($26.55) on CSGOBig, a CS2 case site: advertised RTP 89.95% from 14 items with odds. Item values at the site’s own prices, biggest and latest drops." url: https://gambatracker.com/cases/csgobig/1090 rendered: 2026-11-11T13:11Z --- [Case sites](https://gambatracker.com/case-sites) / [CSGOBig](https://gambatracker.com/case-sites/csgobig) / [Volcano](https://gambatracker.com/cases/csgobig/1090) # [CSGOBig](https://gambatracker.com/case-sites/csgobig) · Volcano 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/1090?window=24h) [7d](https://gambatracker.com/cases/csgobig/1090?window=7d) [30d](https://gambatracker.com/cases/csgobig/1090) [All](https://gambatracker.com/cases/csgobig/1090?window=all) Price · $26.55 · 26.55 CSGOBIG\_COIN Advertised RTP · 89.95% · EV $23.88 from 14 items Observed RTP, 30d · — · no counted openings Variance · 21.7× · of price², per opening Tail share · 10.1% · of openings carry half the EV Below price · 84.3% · of openings return less than the price ## Advertised vs observed · per window, 95% band and the advertised marker **No counted openings yet** Openings inside battles and free cases are listed but never counted. ## Windows · the test per window | Window | Openings | Observed | Dev. | Method | | --- | --- | --- | --- | --- | | [24h](https://gambatracker.com/cases/csgobig/1090?window=24h) | 0 | — | — | — | | [7d](https://gambatracker.com/cases/csgobig/1090?window=7d) | 0 | — | — | — | | [30d](https://gambatracker.com/cases/csgobig/1090) | 0 | — | — | — | | [All](https://gambatracker.com/cases/csgobig/1090?window=all) | 0 | — | — | — | Enough sample: 100 openings and 5 expected rare hits (odds method) or 1,000 openings (sample method). ## Items, odds and values · 14 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. | Item | Odds | Value | EV share | Observed | Expected | Hot / cold | | --- | --- | --- | --- | --- | --- | --- | | [M4A4 \| Howl (Well-Worn) weapon · contraband](https://gambatracker.com/items/m4a4-howl-well-worn) | 1 in 2,000 | $5,273 5,273 CSGOBIG\_COIN | 11.0% | 0 | 0.0 | — | | [★ Falchion Knife \| Doppler (Factory New) (Phase 2) knife · covert · Phase 2](https://gambatracker.com/items/falchion-knife-doppler-factory-new-phase-2) | 1 in 306 | $500 500 CSGOBIG\_COIN | 6.8% | 0 | 0.0 | — | | [USP-S \| Target Acquired (Well-Worn) weapon · classified](https://gambatracker.com/items/usp-s-target-acquired-well-worn) | 1 in 151 | $248 248 CSGOBIG\_COIN | 6.8% | 0 | 0.0 | — | | [★ StatTrak™ Navaja Knife \| Case Hardened (Minimal Wear) StatTrak · knife · covert knife](https://gambatracker.com/items/stattrak-navaja-knife-case-hardened-minimal-wear) | 1 in 91 | $149 149 CSGOBIG\_COIN | 6.8% | 0 | 0.0 | — | | [★ StatTrak™ Survival Knife \| Safari Mesh (Field-Tested) StatTrak · knife · covert knife](https://gambatracker.com/items/stattrak-survival-knife-safari-mesh-field-tested) | 1 in 63 | $103 103 CSGOBIG\_COIN | 6.8% | 0 | 0.0 | — | | [Sticker \| Lucky (Gold) \| Berlin 2019 sticker · #EB4B4B](https://gambatracker.com/items/sticker-lucky-gold-berlin-2019) | 1 in 42 | $68.53 68.53 CSGOBIG\_COIN | 6.8% | 0 | 0.0 | — | | [StatTrak™ USP-S \| Overgrowth (Field-Tested) StatTrak · weapon · restricted](https://gambatracker.com/items/stattrak-usp-s-overgrowth-field-tested) | 1 in 25 | $41.18 41.18 CSGOBIG\_COIN | 6.8% | 0 | 0.0 | — | | [Cmdr. Davida 'Goggles' Fernandez \| SEAL Frogman agent · red](https://gambatracker.com/items/cmdr-davida-goggles-fernandez-seal-frogman) | 1 in 18 | $29.07 29.07 CSGOBIG\_COIN | 6.8% | 0 | 0.0 | — | | [AK-47 \| Neon Revolution (Well-Worn) weapon · covert](https://gambatracker.com/items/ak-47-neon-revolution-well-worn) | 1 in 13 | $21.39 21.39 CSGOBIG\_COIN | 6.8% | 0 | 0.0 | — | | [StatTrak™ Galil AR \| Stone Cold (Factory New) StatTrak · weapon · Restricted](https://gambatracker.com/items/stattrak-galil-ar-stone-cold-factory-new) | 1 in 10 | $16.47 16.47 CSGOBIG\_COIN | 6.8% | 0 | 0.0 | — | | [Autograph Capsule \| Flipsid3 Tactics \| Cologne 2015 other · #B0C3D9](https://gambatracker.com/items/autograph-capsule-flipsid3-tactics-cologne-2015) | 12.3% | $13.31 13.31 CSGOBIG\_COIN | 6.8% | 0 | 0.0 | — | | [P2000 \| Grassland Leaves (Well-Worn) weapon · Industrial Grade](https://gambatracker.com/items/p2000-grassland-leaves-well-worn) | 15.0% | $10.93 10.93 CSGOBIG\_COIN | 6.8% | 0 | 0.0 | — | | [Dual Berettas \| Melondrama (Factory New) weapon · Legendary](https://gambatracker.com/items/dual-berettas-melondrama-factory-new) | 18.0% | $9.10 9.1 CSGOBIG\_COIN | 6.8% | 0 | 0.0 | — | | [Autograph Capsule \| Fnatic \| MLG Columbus 2016 other · #B0C3D9](https://gambatracker.com/items/autograph-capsule-fnatic-mlg-columbus-2016) | 21.6% | $7.58 7.58 CSGOBIG\_COIN | 6.8% | 0 | 0.0 | — | 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=1090`, 11 Nov, 06:29 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=1090) **No drops yet** No drop from this case seen yet. ## Observed RTP over time · daily, 30 days No history yet ## Catalog changes · price, advertised RTP and contents, per capture | Captured | Price | Advertised | Items | | --- | --- | --- | --- | | 3 Nov, 04:27 UTC | $26.55 | 89.95% | 14 | Each opening is tested against the capture in force when it happened; a price or odds change starts a new one. listed contraband 0.1% covert 8.0% classified 0.7% covert knife 2.7% #EB4B4B 2.4% restricted 4.0% red 5.6% Restricted 9.9% #B0C3D9 33.8% Industrial Grade 15.0% Legendary 18.0% 18+ **Case opening is gambling with skins as the currency.** At 89.9% RTP, every $100 put into cases returns $89.95 on average: an expected loss of $10.05 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