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

18+Over 18 only

Games

  • Cases
  • Case Battles
  • Upgrade
  • Missions

Popular

  • SWAG Bastion
  • Hydroponic Garden
  • Exotic
  • Dream
  • Crimson Web

Information

  • Provably Fair
  • Terms of Service
  • Privacy Policy
  • Cookie Policy
  • AML / KYC Policy
  • Responsible Gaming
[email protected]
  • Bitcoin
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  • The Open Network
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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.

Cookie Policy

Last updated: 7 June 2026

This Policy explains how csmafia.com uses cookies and similar technologies. It should be read together with our Privacy Policy.

1. What cookies are

Cookies are small text files stored on your device when you visit a website. They let the site remember your actions and preferences (such as being signed in) over time, and help keep the site secure and working correctly.

2. Cookies we use

We keep cookie use to a minimum. We use:

  • Strictly necessary cookies — required for the Service to function, including your encrypted session cookie that keeps you signed in after Steam authentication, and security cookies used to protect against fraud and abuse. The Service cannot work without these.
  • Functional cookies — remember preferences such as sound or display settings so you do not have to set them on every visit.
  • Security / network cookies — set by our DDoS-protection and content-delivery provider to distinguish legitimate visitors from malicious traffic.

We do not use cookies to build advertising profiles or to sell your data.

3. Managing cookies

You can control or delete cookies through your browser settings, and set your browser to block them. Note that blocking strictly necessary cookies will prevent you from signing in and using core features of the Service.

4. Changes to this Policy

We may update this Cookie Policy from time to time. The “last updated” date above reflects the latest version.

Questions about this document? Contact us at [email protected].