CS2 Case Odds
Understand CS2 case odds, provably fair rolls and where to inspect the item pool and price snapshot for every SkinRoll case.
PROVABLY FAIR
Provably Fair or PF is an algorithm used by Skinroll to prove that all results of randomness-seed-generation on our case opening site are equally arbitrary. You can be sure that there are no ways to manipulate the systems and that all users have the same probability of receiving an expensive item.
Check Roll →Public Hash / Nonce
Complete transparency and fairness of the PF system are achieved through a special random seed generation algorithm.
HMAC_SHA256(key = secretSalt, message = serverSeed) HMAC_SHA512(key = clientSeed + "-" + nonce, message = serverSeed) roll = (int(rollHash[0:15], 16) % 100000) + 1 CS2 cases
Browse the public case catalogue. Prices are a build-time snapshot; open a case in the app for live availability.
CS2 cases →CS2 case opening guide
A short guide to how CS2 case opening works on SkinRoll.
Case opening guide →The live opening flow runs in the SkinRoll app.