Case Opening
Spin the strip, land a skin. Real rarity odds, fake coins. House edge ~10%. Balance is stored in your browser only.
How CSGORoll-style case opening works
Every case is a fixed list of skins, each with a published drop chance. The case price is set so that the expected value of the contents (price × odds, summed) comes out below what you pay. On this demo the house edge is 10%: a case priced ◎27.47 returns ◎24.72 on average.
That gap is invisible on a single open, which is exactly why case opening feels better than roulette even though it costs more per coin wagered. The profit chance figure in the panel — the share of items worth more than the case — is usually 5–20%. The other 80–95% of opens lose.
Rarity tiers
Consumer (grey) → Mil-Spec (blue) → Restricted (purple) → Classified (pink) → Covert (red) → ★ Gold (knives & gloves). Real sites weight the odds so that gold sits at roughly 0.2–1%. The strip animation is cosmetic: the winning item is decided the moment you click, before the spin starts.
Run any case through the Case EV calculator to see the numbers before you open it for real.
Is this the real CSGORoll case opening?
No. It's a free simulator that copies the format — a horizontal strip, rarity-weighted odds, a case price above expected value. Nothing here touches CSGORoll or your Steam inventory.
Are the odds the same as on real sites?
The mechanics are identical; the exact percentages are ours. Real sites publish per-item odds on each case page — plug them into the Case EV calculator to compare.
Why do I lose most opens?
Because most items in any case are worth less than the case. The rare high-value items pull the average up, but they land only a few percent of the time.
Can I win real skins here?
No. Balances are fake coins with no cash value. To open real cases, use CSGORoll with code GETBOX for 3 free cases.
Case Opening — four things worth knowing
- Read the odds list before opening — every real site publishes it. If one item carries most of the EV at under 1%, you are buying a lottery ticket.
- Free cases from promo codes (GETBOX gives three) are the only positive-EV cases. Open those; be honest about paying for the next one.
- Case Battles do not change the EV — they only decide who ends up holding the items. A 4-player battle is four opens, not one.
- Set a number of opens before you start. The strip animation exists to make 'one more' feel cheap.
On the real sites
On CSGORoll, cases sit under Case Opening with the full odds list on each case page; CSGOEmpire and 500.casino also run cases and battles. The strip, the odds, the ~10% edge — identical to this demo. Codes: CSGORoll GETBOX, CSGOEmpire case2go, 500 CSMAX, Duel MAXRB, Thrill maxrakeback.
How Case Opening compares
| Game | House edge | Per ◎1,000 wagered | Variance |
|---|---|---|---|
| Dice | 1% | ◎10 | You choose |
| Crash | 1% | ◎10 | You choose (target) |
| Plinko | 1% | ◎10 | Low → extreme |
| Roll | 6.67% | ◎67 | Medium (green: high) |
| Upgrader | ~10% | ◎100 | Depends on multiplier |
| Case opening | 8–15% | ◎80–150 | High |
Edge = expected loss per coin wagered. Variance describes the ride, not the destination.
Other games
Glossary
- House edge
- The share of every wager the operator keeps over the long run. 1% edge = ◎10 expected loss per ◎1,000 wagered.
- RTP
- Return to player — the mirror of house edge. 90% RTP on a case means a 10% edge.
- Expected value (EV)
- What a bet is worth on average: sum of (payout × probability). Always below the stake on a real site.
- Variance
- How much results swing around the average. High variance = long dead runs, rare big hits.
- Provably fair
- A seed-hash system letting you verify a result was fixed before your bet. Proves honesty, not good odds.
- Rakeback
- A percentage of the house edge you generate, returned regardless of win or loss.