Case opening is a paid random draw: you pay a fixed price, the site picks one item from a list using published probabilities, and you receive that item as site credit or an item you can withdraw. Everything else — the reel, the sounds, the near-misses — is presentation layered on top of that draw.
Knowing the exact sequence helps, because each step has a cost or a condition that is easy to miss. Below is the full path of one opening, with a fictional example run through every step.
The seven steps of one opening
| Step | What happens | What to look at |
|---|---|---|
| 1. Deposit | Money or skins become site balance | Conversion rate, deposit fees, minimum deposit |
| 2. Choose a case | You pick a case with a fixed price | The full item list, not the thumbnail |
| 3. Check the odds | Each item has a drop chance | Chances should add up to 100% |
| 4. Open | Site generates a random result | Fairness method (for example provably fair) |
| 5. Reveal | Reel animation shows the result | Decorative only — result is already set |
| 6. Drop | Item lands in your site inventory | Value shown is the site's own figure |
| 7. Exit | Sell back, withdraw, or keep playing | Sell-back rate, withdrawal minimums, fees |
Step 1: the deposit
Most sites do not take money per case. You first top up a balance. That conversion is your first cost: some sites credit less balance than you paid, add a fee on certain methods, or set a minimum deposit larger than the case you wanted to open. If you deposit skins, the site values them at its own price, which can be lower than you expect.
Step 2: choosing a case
A case has a name, an image and a price. The image usually shows the most valuable item in it — which is also, almost always, the least likely item to drop. The useful part of the case page is the item list underneath.
Step 3: the odds table
Each item in the case should have a stated drop chance. Read it before you open anything. Our guide on how to read a case odds table goes through this line by line; the short version is that the chances must cover 100% and the big items will be measured in fractions of a percent.
Step 4: the roll
When you click open, the site generates a random number and maps it onto the item list. On a site using a provably fair system, that number comes from seeds you can check afterwards. On a site without one, you are trusting the operator's word. Either way, the result is fixed at this moment.
Step 5: the reveal
The reel that scrolls past the knife and slows down near a rare item is an animation of a result that already exists. Near-misses on the reel are a design choice, not a sign you were close.
Step 6: the drop
The item appears in your site inventory with a value next to it. That value is set by the site. It may be based on a marketplace price, an average, or the site's own pricing model.
Step 7: what you do with it
You usually have three options: sell it back for balance (instantly, at the site's buy-back rate), withdraw it as an item (subject to minimums, availability and sometimes a waiting period), or open more cases with it. Each option leads to a different real value for the same item.
A worked example (fictional)
The figures below are invented to show the arithmetic. They do not describe any real site.
A player deposits $25.00 by card. The fictional site charges a 4% card fee, so the balance credited is:
- $25.00 × 0.96 = $24.00 balance
They open a $6.00 case four times: 4 × $6.00 = $24.00 spent. The drops are shown at the site's values:
| Opening | Drop (site value) |
|---|---|
| 1 | $1.10 |
| 2 | $2.40 |
| 3 | $0.85 |
| 4 | $9.30 |
| Total | $13.65 |
Now the exit. The site buys items back at 90% of its listed value:
- $13.65 × 0.90 = $12.29 (rounded from $12.285)
So $25.00 of real money became $12.29 of balance after four openings — a result of −$12.71, even though one drop "beat" the case price. The single $9.30 item is what people remember; the full sheet is what actually happened.
If they withdrew the $9.30 item instead, the outcome depends on what it sells for on an outside market, minus that market's fees — a number the case site does not control.
Where the money goes at each step
Notice that the example lost value in three different places:
- The deposit fee ($1.00).
- The case's built-in margin — the drops were worth less than the price paid, which is what a house edge means over time. See case price vs item value for how to measure it.
- The sell-back discount ($1.36 on these drops).
Only the second one is visible on the case page. The other two live in the deposit and withdrawal terms, which is why the pre-deposit checklist exists.
Quick reference: one opening, three checks
Before you open a case, you should be able to answer:
- What does my deposit actually become in balance?
- What are the full odds, and do they add up to 100%?
- If I win something, what happens when I try to sell or withdraw it?
If any of those three answers is "I don't know", that is the thing to find out first.
The point to keep
Case opening is a priced random draw with costs on the way in and on the way out. Treat the money you deposit as spent the moment you deposit it, set a limit before you start, and stop when you reach it. If it stops feeling like entertainment, our responsible gambling page lists free, confidential support.
FAQ
Is the spinning animation the moment the result is decided?
No. On a typical site the result is calculated as soon as you click open; the reel animation is a display of a result that already exists. Speeding up or skipping the animation does not change anything.
Is the item I win worth what the site says?
Not necessarily. The value shown on the site is the site's own figure. What you can actually get depends on whether you sell it back to the site, withdraw it, or trade it, and each route has its own price and fees.
Do I need to deposit real money to open cases?
For paid cases, yes, usually via card, crypto or skins converted to a site balance. Free or daily cases often come with level, deposit or wagering conditions, so read those before assuming anything is free.
What age do I need to be?
Paid case opening is a form of gambling. You must be 18 or older, and older in some places, and it is not legal in every country. Check your local rules before you sign up anywhere.