CS2 Case Simulator & Calculator
The free CS2 case simulator and calculator in one. Pick any case to see its real drop odds, live prices, expected value and net-of-fee ROI — then open it in our case opening simulator and watch what you would actually get. All 42 CS2 and CS:GO cases, ranked by return, with fully transparent math. No login, and nothing here is real money.
Kilowatt Case
Released 2024-01-16
Top prize: ★ Kukri Knife | Fade
You get back about $1.60 for every $2.78 you spend on Kilowatt Case — a 49% net returnafter Steam's 15% fee.
On average it takes ~385 opens and about $1,070.30 to unbox any knife or gloves. The top prize, ★ Kukri Knife | Fade, costs about $260.46 to buy directly — almost always cheaper than chasing it through the case.
What's inside Kilowatt Case
All CS2 Cases Ranked by Net ROI
| # | Case | Cost | EV | Net ROI |
|---|---|---|---|---|
| 1 |  Horizon Case | $5.26 | $5.52 | 89% |
| 2 |  Operation Wildfire Case | $7.66 | $7.70 | 85% |
| 3 |  Prisma Case | $4.78 | $4.73 | 84% |
| 4 |  Gallery Case | $3.90 | $3.79 | 83% |
| 5 |  Shadow Case | $5.17 | $4.87 | 80% |
| 6 |  Snakebite Case | $3.33 | $3.07 | 78% |
| 7 |  Operation Vanguard Weapon Case | $11.08 | $9.88 | 76% |
| 8 |  Falchion Case | $4.98 | $4.46 | 76% |
| 9 |  CS20 Case | $4.36 | $3.77 | 74% |
| 10 |  Gamma 2 Case | $7.19 | $6.00 | 71% |
| 11 |  Prisma 2 Case | $4.75 | $3.94 | 71% |
| 12 |  CS:GO Weapon Case 3 | $21.49 | $17.73 | 70% |
| 13 |  Gamma Case | $7.32 | $5.86 | 68% |
| 14 |  Fever Case | $3.38 | $2.65 | 67% |
| 15 |  Operation Broken Fang Case | $12.67 | $9.75 | 65% |
| 16 |  eSports 2014 Summer Case | $24.74 | $18.20 | 63% |
| 17 |  Chroma 2 Case | $8.17 | $5.98 | 62% |
| 18 |  Revolver Case | $6.78 | $4.96 | 62% |
| 19 |  CS:GO Weapon Case 2 | $36.75 | $26.40 | 61% |
| 20 |  Recoil Case | $3.04 | $2.20 | 61% |
| 21 |  Shattered Web Case | $11.54 | $8.04 | 59% |
| 22 |  Chroma 3 Case | $7.54 | $5.16 | 58% |
| 23 |  Revolution Case | $2.92 | $2.01 | 58% |
| 24 |  Glove Case | $25.81 | $17.32 | 57% |
| 25 |  Danger Zone Case | $4.70 | $3.16 | 57% |
| 26 |  Operation Phoenix Weapon Case | $8.47 | $5.58 | 56% |
| 27 |  Chroma Case | $9.79 | $6.44 | 56% |
| 28 |  eSports 2013 Winter Case | $31.99 | $20.25 | 54% |
| 29 |  Spectrum 2 Case | $7.07 | $4.49 | 54% |
| 30 |  Clutch Case | $3.49 | $2.24 | 54% |
| 31 |  Operation Hydra Case | $52.67 | $33.10 | 53% |
| 32 |  Operation Riptide Case | $18.31 | $11.32 | 53% |
| 33 |  Dreams & Nightmares Case | $4.49 | $2.74 | 52% |
| 34 |  Winter Offensive Weapon Case | $17.77 | $10.45 | 50% |
| 35 |  Huntsman Weapon Case | $15.25 | $8.96 | 50% |
| 36 |  Spectrum Case | $8.19 | $4.72 | 49% |
| 37 | Kilowatt Case | $2.78 | $1.60 | 49% |
| 38 |  Operation Breakout Weapon Case | $14.38 | $7.42 | 44% |
| 39 |  Fracture Case | $3.39 | $1.72 | 43% |
| 40 |  eSports 2013 Case | $74.47 | $29.24 | 33% |
| 41 |  Operation Bravo Case | $91.29 | $32.98 | 31% |
| 42 |  CS:GO Weapon Case | $190.88 | $60.40 | 27% |
How the CS2 Case Calculator Works
Every CS2 weapon case shares the same fixed drop odds — only the item pool changes. This tool multiplies each rarity’s official odds by the live market value of the skins in that tier to produce a case’s expected value (EV): the average amount you get back per open. We then compare EV to the true cost to open (the case plus a $2.49 key) to give a gross ROI, and subtract Steam’s 15% market fee for the net ROI — the honest number most calculators leave out.
Valve’s official drop odds
- Mil-Spec (blue): 79.92%
- Restricted (purple): 15.98%
- Classified (pink): 3.20%
- Covert (red): 0.64%
- Rare Special — knife or gloves (gold): 0.26% (about 1 in 385)
Using the CS2 case opening simulator
Every calculation is paired with a full case opening simulator. Hit Open and the reel spins just like in-game, landing on a result drawn against the real 0.26% knife odds — knives and gloves show the gold special-item marker until they reveal. Open once for the animation, or run 100 or 1,000 opens at once to watch the losses stack up. It works for every CS2 and CS:GO case, it is unlimited, and it is completely free — the honest alternative to a fake-odds csgo case simulator.
Working with skins you already own? Try our CS2 trade up calculator to turn 10 skins into one of the next rarity up, with exact odds and profit. Or, for the full breakdown of which cases are worth opening, read our best CS2 cases to open guide, or if you’d rather open cases for real, compare the top CS2 case opening sites.
Frequently Asked Questions
Is this a free CS2 case opening simulator?
Yes. You can open any CS2 or CS:GO case for free, as many times as you like — no login, no real money and no real items. Unlike most case simulators, every result is drawn against Valve’s real drop odds and priced with live market data, so what you see reflects what opening the case is actually like.
How does the CS2 case calculator work?
It combines Valve’s official drop odds with live Steam Market prices for every item in a case, then computes the expected value (EV) — the average return per open. ROI is that value divided by the cost to open (case price plus a $2.49 key). The net figure also subtracts Steam’s 15% market fee.
What are the odds of unboxing a knife?
The rare special item (knife or gloves) has a 0.26% drop chance — about 1 in 385 — and it is identical in every case. Only the item pool changes between cases.
Is opening CS2 cases profitable?
No. Every case has negative expected value once you include the key cost and Steam’s fee. The best cases return roughly 85–90% of your money on average; the worst return under 30%. The calculator shows the exact figure per case.
Are the prices and odds accurate?
Odds are Valve’s official published rates. Prices are pulled from live Steam Market data and refreshed regularly, averaged across wear conditions. Individual outcomes vary with float and StatTrak, so treat EV as a long-run average, not a guarantee.