Monte Carlo
Bulk case opening calculator
Simulate thousands of CS2 case openings at once — total cost, return, ROI, distribution, and rarity actual-vs-expected, computed in a Web Worker.
Monte-Carlo simulation
Waiting for price data…
Runs off the main thread. Same seed + N reproduces the run exactly. Individual pulls are not stored unless you save them.
Session
Live stats appear here as you open. This session is not saved — see Statistics for lifetime data.
All 42 cases: contents & odds
Each case page lists its full contents, per-rarity drop odds, knife or glove chance and expected value. The drop rates are explained on CS2 case opening odds, knife chances on knife odds by case, and ROI for every case on CS2 case ROI.
- Fever Case
- Gallery Case
- Kilowatt Case
- Revolution Case
- Recoil Case
- Dreams & Nightmares Case
- Operation Riptide Case
- Snakebite Case
- Operation Broken Fang Case
- Fracture Case
- Prisma 2 Case
- CS20 Case
- Shattered Web Case
- Prisma Case
- Danger Zone Case
- Horizon Case
- Clutch Case
- Spectrum 2 Case
- Operation Hydra Case
- Spectrum Case
- Glove Case
- Gamma 2 Case
- Gamma Case
- Chroma 3 Case
- Operation Wildfire Case
- Revolver Case
- eSports 2013 Case
- eSports 2013 Winter Case
- eSports 2014 Summer Case
- Operation Breakout Weapon Case
- Huntsman Weapon Case
- Winter Offensive Weapon Case
- CS:GO Weapon Case
- Operation Bravo Case
- CS:GO Weapon Case 2
- CS:GO Weapon Case 3
- Operation Phoenix Weapon Case
- Operation Vanguard Weapon Case
- Chroma Case
- Chroma 2 Case
- Falchion Case
- Shadow Case