How does the CS2 case simulator work?
Pick a case and press Open. The reel spins and stops on your item, then the card shows the item, its wear, its float and what it sells for. You can open 1, 2, 3 or 5 cases at once. Each reel gets its own roll and they all spin together.
Nothing here costs money. You do not buy keys, you do not win real items, and nothing is sent to your Steam account. The tool is a way to see what opening a case is really like before you spend anything.
Are the odds the same as real CS2 cases?
Yes. Every roll uses the drop rates Valve published for weapon cases. The simulator does not boost any rarity, and the reel does not fake near misses. The items next to your pull are drawn with the same odds as the pull itself.
| Rarity | Chance per case | About 1 in |
|---|---|---|
| Mil-Spec (blue) | 79.92% | 1.25 cases |
| Restricted (purple) | 15.98% | 6 cases |
| Classified (pink) | 3.20% | 31 cases |
| Covert (red) | 0.64% | 156 cases |
| Knife or gloves (gold) | 0.26% | 385 cases |
StatTrak is rolled at a 10% chance. Valve has not published this number, so it is a widely used community estimate. Floats are drawn evenly inside each skin's real float range, because Valve does not publish how floats are rolled either. The full table and its source are on the CS2 drop rates page.
Where do the prices come from?
Each pull is priced at the lowest listing on Skinport for that exact item, wear and StatTrak state. A StatTrak Field-Tested skin gets the StatTrak Field-Tested price, not the normal one. The prices come from a snapshot, and the date of the snapshot is shown next to every price.
If there is no recent listing for that exact version, the tool says "No recent listing" instead of guessing. In the session totals, those pulls count as $0.
A listing price is what a buyer would pay. If you sold the same item, you would get less, because the marketplace takes a fee. You can work that out with the fee calculator. Our guide on how CS2 skin prices work explains why prices move.
What does one case opening cost?
One opening costs the case plus a key. The tool adds the lowest Skinport listing for the case to the key price in our config, and shows the total next to every Open button. If a case has no recent listing, the tool says so and uses the key price alone.
Here is the math for the Fever Case in the 24 Sep 2026 snapshot:
| Part | Price |
|---|---|
| Fever Case (lowest Skinport listing) | $0.53 |
| Case key | $2.49 |
| One opening | $3.02 |
Opening 5 at once would cost $15.10 if it were real.
What does the "If this were real money" panel show?
The panel tracks your current session. It shows how many cases you opened, what that would have cost, what your pulls are worth, and the net result in green or red. It also keeps your best pull so far, priced the same way.
It shows collection progress too, such as "7 of 17 skins collected". This counts the skins from this case that you have pulled on this device, from your last 200 saved pulls. Nothing leaves your browser, and the Reset button starts a fresh session.
The panel is there to keep things honest. A win feels good on the reel, but the running total shows what a real session would do to your wallet.
What happens when you open one Fever Case?
Say you open one Fever Case and pull an M4A4 | Choppa in Field-Tested. In the 24 Sep 2026 snapshot, the lowest listing for that version was $0.08.
- Cost of the opening: $0.53 case + $2.49 key = $3.02
- Value of the pull: $0.08
- Net result: $0.08 - $3.02 = -$2.94
That is the most likely kind of result. Mil-Spec skins come out about 4 times in 5, and every Mil-Spec skin in this case was listed under $1.30 in every wear.
What do ten openings look like?
Now say you open ten Fever Cases. Ten openings would cost 10 × $3.02 = $30.20. You get 8 Mil-Spec skins at about $0.08 each and 2 Restricted skins at $0.31 each, all Field-Tested.
- Value of the pulls: (8 × $0.08) + (2 × $0.31) = $0.64 + $0.62 = $1.26
- Net result: $1.26 - $30.20 = -$28.94
- Share of spend back: $1.26 ÷ $30.20 = about 4%
The numbers only turn around when a rare pull lands. Here is what each rarity was listed for in Field-Tested in the same snapshot:
| Fever Case rarity | Field-Tested listings (24 Sep 2026) |
|---|---|
| Mil-Spec | $0.03 to $0.09 |
| Restricted | $0.21 to $0.31 |
| Classified | $3.17 to $4.04 |
| Covert | $34.75 to $39.61 |
A Covert pull covers a lot of openings, but it comes about once in 156 cases. At $3.02 each, 156 openings would cost $471.12. You can find the chance of hitting a target over many cases with the case odds calculator.
How do multi-open, Fast mode and sound work?
The x2, x3 and x5 buttons spin that many reels stacked on top of each other. Each reel stops on its own honest roll, then all the pulls are shown together with their total value and your best pull marked. Quick open 10 skips the reel and shows ten results at once.
Fast mode cuts the spin to about 1 second. Your choice is saved on this device. You can also press Space to open again, as long as you are not typing in a box.
Sound is off until you turn it on with the speaker button. The built-in sounds are made in your browser, and no game audio is used. The tick follows the reel as each tile passes the line, so it slows down as the reel slows down. The reveal sound gets bigger with rarity, from a simple chime for Mil-Spec to a long sparkle for a knife or gloves.
When should you use the case simulator?
Use it when you want the fun of opening a case without the cost. It is also a good reality check before you buy keys. Open 50 or 100 cases, then look at the net result in the session panel.
For head to head play, try the case battle simulator, where every pull is scored by its real price (with rarity points as a labelled fallback when an item has no recent listing). Our guides on case battles and whether CS2 skins are a good investment cover the money side in more depth.
