--- title: "Monster Mash case on Rain.gg: odds, RTP & drops" description: "Monster Mash ($2.16) on Rain.gg, a CS2 case site: no published odds, observed 90.15% over 63.7K openings in 30 days. Independent and free, no sign-up." url: https://gambatracker.com/cases/rain/monster-mash rendered: 2026-11-11T15:19Z --- [Case sites](https://gambatracker.com/case-sites) / [Rain.gg](https://gambatracker.com/case-sites/rain) / [Monster Mash](https://gambatracker.com/cases/rain/monster-mash) # [Rain.gg](https://gambatracker.com/case-sites/rain) · Monster Mash A case on Rain.gg, first seen 2 Nov 2026. Every value is Rain.gg's own item price converted from Rain coins at the rate on the site page. [24h](https://gambatracker.com/cases/rain/monster-mash?window=24h) [7d](https://gambatracker.com/cases/rain/monster-mash?window=7d) [30d](https://gambatracker.com/cases/rain/monster-mash) [All](https://gambatracker.com/cases/rain/monster-mash?window=all) Price · $2.16 · 3.08 coins Advertised RTP · — · no catalog Observed RTP, 30d · 90.15% · 63.7K openings, sample method Variance · — · needs odds Tail share · — · needs odds Below price · — · needs odds ## Advertised vs observed · per window, 95% band and the advertised marker observed, 95% band outside band small sample 24 hours · 93.55% ±9.17 9,432 openings 7 days · 90.57% ±3.80 53.8K openings 30 days · 90.15% ±3.52 63.7K openings since tracking started · 90.15% ±3.52 63.7K openings 83.5% 93.5% 103.5% ## Windows · the test per window | Window | Openings | Observed | Dev. | Method | | --- | --- | --- | --- | --- | | [24h](https://gambatracker.com/cases/rain/monster-mash?window=24h) | 9,432 | 93.55% ±9.17 | — | sample | | [7d](https://gambatracker.com/cases/rain/monster-mash?window=7d) | 53.8K | 90.57% ±3.80 | — | sample | | [30d](https://gambatracker.com/cases/rain/monster-mash) | 63.7K | 90.15% ±3.52 | — | sample | | [All](https://gambatracker.com/cases/rain/monster-mash?window=all) | 63.7K | 90.15% ±3.52 | — | sample | Enough sample: 100 openings and 5 expected rare hits (odds method) or 1,000 openings (sample method). ## Items, odds and values · none published **No catalog** Rain.gg publishes no catalog; the case is known from the drops that named it. Values are Rain.gg'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. ## Biggest drops · from this case, by value [Desert Eagle | Emerald Jörmungandr (Well-Worn) weapon · restricted](https://gambatracker.com/items/desert-eagle-emerald-jormungandr-well-worn) Hidden $2.16 3.08 coins $282 403 coins 130.9x 2026-11-06 17:55 UTC [Desert Eagle | Emerald Jörmungandr (Well-Worn) weapon · restricted](https://gambatracker.com/items/desert-eagle-emerald-jormungandr-well-worn) Hidden $2.16 3.08 coins $282 403 coins 130.9x 2026-11-06 10:29 UTC [Desert Eagle | Emerald Jörmungandr (Well-Worn) weapon · restricted](https://gambatracker.com/items/desert-eagle-emerald-jormungandr-well-worn) Hidden $2.16 3.08 coins $282 403 coins 130.9x 2026-11-05 21:10 UTC [Desert Eagle | Emerald Jörmungandr (Well-Worn) weapon · restricted](https://gambatracker.com/items/desert-eagle-emerald-jormungandr-well-worn) Hidden $2.16 3.08 coins $282 403 coins 130.9x 2026-11-05 14:53 UTC [Desert Eagle | Emerald Jörmungandr (Well-Worn) weapon · restricted](https://gambatracker.com/items/desert-eagle-emerald-jormungandr-well-worn) Hidden $2.16 3.08 coins $282 403 coins 130.9x 2026-11-03 12:18 UTC [Desert Eagle | Emerald Jörmungandr (Well-Worn) weapon · restricted](https://gambatracker.com/items/desert-eagle-emerald-jormungandr-well-worn) Hidden $2.16 3.08 coins $282 403 coins 130.9x 2026-11-02 22:34 UTC [StatTrak™ P90 | Death by Kitty (Minimal Wear) StatTrak · weapon · Covert](https://gambatracker.com/items/stattrak-p90-death-by-kitty-minimal-wear) Hidden $2.16 3.08 coins $175 250 coins 81.31x 2026-11-07 17:01 UTC [StatTrak™ P90 | Death by Kitty (Minimal Wear) StatTrak · weapon · Covert](https://gambatracker.com/items/stattrak-p90-death-by-kitty-minimal-wear) Hidden $2.16 3.08 coins $175 250 coins 81.31x 2026-11-04 02:09 UTC [StatTrak™ P90 | Death by Kitty (Minimal Wear) StatTrak · weapon · Covert](https://gambatracker.com/items/stattrak-p90-death-by-kitty-minimal-wear) Hidden $2.16 3.08 coins $175 250 coins 81.31x 2026-11-04 01:28 UTC [AWP | Containment Breach (Minimal Wear) weapon · covert](https://gambatracker.com/items/awp-containment-breach-minimal-wear) Hidden $2.16 3.08 coins $127 181 coins 58.88x 2026-11-11 14:11 UTC ## Latest drops · newest first [All Latest drops →](https://gambatracker.com/drops?casino=rain&case=monster-mash) [Sticker | Monster sticker · High Grade](https://gambatracker.com/items/sticker-monster) Hidden $2.16 3.08 coins $0.03 0.05 coins 0.02x 2026-11-11 15:19 UTC [Sticker | Monster sticker · High Grade](https://gambatracker.com/items/sticker-monster) Hidden $2.16 3.08 coins $0.03 0.05 coins 0.02x 2026-11-11 15:19 UTC [Sticker | Monster sticker · High Grade](https://gambatracker.com/items/sticker-monster) Hidden $2.16 3.08 coins $0.03 0.05 coins 0.02x 2026-11-11 15:19 UTC [StatTrak™ M4A4 | Cyber Security (Field-Tested) StatTrak · weapon · Classified](https://gambatracker.com/items/stattrak-m4a4-cyber-security-field-tested) Hidden $2.16 3.08 coins $24.78 35.4 coins 11.49x 2026-11-11 15:19 UTC [Sticker | Monster sticker · High Grade](https://gambatracker.com/items/sticker-monster) Hidden $2.16 3.08 coins $0.03 0.05 coins 0.02x 2026-11-11 15:19 UTC [Sticker | Monster sticker · High Grade](https://gambatracker.com/items/sticker-monster) Hidden $2.16 3.08 coins $0.03 0.05 coins 0.02x 2026-11-11 15:19 UTC [Sticker | Monster sticker · High Grade](https://gambatracker.com/items/sticker-monster) Hidden $2.16 3.08 coins $0.03 0.05 coins 0.02x 2026-11-11 15:19 UTC [Sticker | Monster sticker · High Grade](https://gambatracker.com/items/sticker-monster) Hidden $2.16 3.08 coins $0.03 0.05 coins 0.02x 2026-11-11 15:19 UTC [Sticker | Monster sticker · High Grade](https://gambatracker.com/items/sticker-monster) Hidden $2.16 3.08 coins $0.03 0.05 coins 0.02x 2026-11-11 15:19 UTC [Sticker | Monster sticker · High Grade](https://gambatracker.com/items/sticker-monster) Hidden $2.16 3.08 coins $0.03 0.05 coins 0.02x 2026-11-11 15:19 UTC ## Catalog changes · price, advertised RTP and contents, per capture | Captured | Price | Advertised | Items | | --- | --- | --- | --- | Each opening is tested against the capture in force when it happened; a price or odds change starts a new one. listed best hit $282 (130.9x) 18+ **Case opening is gambling with skins as the currency.** At 90.1% RTP, every $100 put into cases returns $90.15 on average: an expected loss of $9.85 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