CS2 Case Opening Odds & Skin ROI Simulator
Simulate opening dozens or hundreds of Counter-Strike 2 cases using official Valve probability algorithms to see your real mathematical return on investment.
Frequently Asked Questions
What are the exact official odds of unboxing a knife or gloves in CS2?
Under Valve's legal disclosure for the Chinese Ministry of Culture, the probability of unboxing a Special Rare Item (Gold Knife or Gloves) is exactly 0.26% (approximately 1 in 384.6 cases). The odds of unboxing a StatTrak knife are 1 in 3,846 cases.
What is the expected Return on Investment (ROI) of opening CS2 cases?
On average, the long-term Return on Investment across standard CS2 cases is between 25% and 38%. For every $100 spent on cases and keys, you mathematically receive approximately $30 to $38 back in Steam Community Market skin value, representing an expected loss of over 60%.
What is the difference between opening cases vs buying skins directly?
Opening cases is mathematically identical to slot machine gambling with negative expected value. Buying the exact knife or skin you want from the Steam Community Market or reputable third-party marketplaces guarantees you get the item without losing hundreds of dollars on blue Mil-Spec skins.
What are the odds for each rarity tier in CS2?
Mil-Spec (Blue): 79.92%, Restricted (Purple): 15.98%, Classified (Pink): 3.20%, Covert (Red): 0.64%, Special Rare (Gold): 0.26%. Each item also has an independent 10% chance to be StatTrak.