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Open CS2 cases, run PvP case battles, upgrade your skins on a provably fair platform.

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csmafia is a CS2 case-opening platform built around provably fair mechanics. Every case opening, battle round, and upgrade roll is generated from a publicly committed server seed, a player-controlled client seed, and a monotonically incrementing nonce — outcomes can be independently verified after the fact.

Open cases to pull skins across the rarity spectrum. Run case battles with up to four players and fifty rounds, with the highest total value taking everything. Upgrade skins by staking your inventory toward a higher-value target — odds and house edge are shown before every roll.

Skins can be sold back for instant balance, used as upgrade stakes, or set aside for case battles. Steam trade withdrawal is in development pending licensing. Balance withdrawal is crypto-only.

csmafia is for entertainment. 18+ only, or the legal age in your jurisdiction if higher. Coins and items are part of the experience and have no real-world monetary value.

© 2026 csmafia. All rights reserved.Not affiliated with Valve. CS2 and related items are property of their respective owners.

For entertainment only. 18+. Coins and items are part of the experience and have no real-world monetary value.

ECO Rush B

18 skins inside

★ StatTrak™ Gut Knife | Boreal Forest (Field-Tested)

★ StatTrak™ Kukri Knife | Forest DDPAT (Battle-Scarred)

★ Shadow Daggers | Safari Mesh (Field-Tested)

StatTrak™ P250 | Splash (Field-Tested)

P250 | Splash (Minimal Wear)

SCAR-20 | Splash Jam (Well-Worn)

Souvenir M4A4 | Tornado (Battle-Scarred)

Souvenir USP-S | Forest Leaves (Field-Tested)

SSG 08 | Sand Dune (Battle-Scarred)

PP-Bizon | Forest Leaves (Field-Tested)

Desert Eagle | Urban DDPAT (Battle-Scarred)

Souvenir P250 | Sand Dune (Field-Tested)

Souvenir MAC-10 | Urban DDPAT (Battle-Scarred)

M4A1-S | Boreal Forest (Well-Worn)

USP-S | Forest Leaves (Well-Worn)

MAC-10 | Snow Splash (Field-Tested)

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Contents — 18 skins, sorted by value with drop chance

★ StatTrak™ Gut Knife | Boreal Forest (Field-Tested)

FT

ST™Gut Knife

Boreal Forest

$60.150.05%

★ StatTrak™ Kukri Knife | Forest DDPAT (Battle-Scarred)

BS

ST™Kukri Knife

Forest DDPAT

$55.520.06%

★ Shadow Daggers | Safari Mesh (Field-Tested)

FT

Shadow Daggers

Safari Mesh

$47.060.06%

StatTrak™ P250 | Splash (Field-Tested)

FT

ST™P250

Splash

$34.020.08%

P250 | Splash (Minimal Wear)

MW

P250

Splash

$22.750.12%

SCAR-20 | Splash Jam (Well-Worn)

WW

SCAR-20

Splash Jam

$15.600.17%

Souvenir M4A4 | Tornado (Battle-Scarred)

BS

SVM4A4

Tornado

$10.650.24%

Souvenir USP-S | Forest Leaves (Field-Tested)

FT

SVUSP-S

Forest Leaves

$7.340.05%

SSG 08 | Sand Dune (Battle-Scarred)

BS

SSG 08

Sand Dune

$4.800.42%

PP-Bizon | Forest Leaves (Field-Tested)

FT

PP-Bizon

Forest Leaves

$2.700.77%

Desert Eagle | Urban DDPAT (Battle-Scarred)

BS

Desert Eagle

Urban DDPAT

$2.460.79%

Souvenir P250 | Sand Dune (Field-Tested)

FT

SVP250

Sand Dune

$1.111.60%

Souvenir MAC-10 | Urban DDPAT (Battle-Scarred)

BS

SVMAC-10

Urban DDPAT

$0.536.53%

M4A1-S | Boreal Forest (Well-Worn)

WW

M4A1-S

Boreal Forest

$0.169.42%

USP-S | Forest Leaves (Well-Worn)

WW

USP-S

Forest Leaves

$0.0715.95%

MAC-10 | Snow Splash (Field-Tested)

FT

MAC-10

Snow Splash

$0.0421.23%

G3SG1 | Polar Camo (Field-Tested)

FT

G3SG1

Polar Camo

$0.0321.23%

P250 | Sand Dune (Field-Tested)

FT

P250

Sand Dune

$0.0321.23%