Short answer: a CS2 crash round is a bet on a number you cannot see. A multiplier climbs from 1.00x, the round ends at a random point fixed before it started, and you win only if you cash out first. Everything else, including the odds, follows from that one rule.
CS GO crash or CS2 crash?
Counter-Strike: Global Offensive was replaced by Counter-Strike 2 in September 2023, and the skins moved across with it. Players kept typing “cs go crash” into search, and many sites still use the old name. The game itself did not change: it is the same crash format, played with CS2 skins or crypto. On CrashLog we use “CS2” for the game and keep “CS GO crash” where it is what people search for.
One round, step by step
- Betting window. The site opens a short window. You choose a stake and, on most sites, an optional auto cash-out target such as 2.00x.
- The curve starts. The multiplier starts at 1.00x and rises, slowly at first and then faster.
- You cash out, or you do not. If you click cash out at 3.00x on a 10-unit stake, you receive 30 units (a 20-unit profit). If you set an auto cash-out, the site does it for you the moment the multiplier reaches your target.
- The crash. At some point the multiplier stops and the round ends. Anyone who has not cashed out loses the stake.
The key fact is in step 4: the crash point was decided before step 1. Nothing you do, and nothing the other players do, moves it.
Where the crash point comes from
Most crash games turn a random number into a crash point with a formula of this shape:
crash = max(1.00, (1 − edge) ÷ U) where U is a random number between 0 and 1A small U gives a huge multiplier, and a U close to 1 gives a crash at 1.00x. The table shows the result for a 1% house edge, with the crash rounded down to two decimals.
| Random number U | Crash point (1% edge) | What it means |
|---|---|---|
| 0.995 | 1.00x | Instant crash. Nobody can cash out. |
| 0.900 | 1.10x | A low round. |
| 0.500 | 1.98x | About the median. |
| 0.200 | 4.95x | A good round. |
| 0.100 | 9.90x | Rare. |
| 0.010 | 99.00x | Very rare. |
Those numbers are computed from the formula, not measured on any site. Your site’s actual formula may differ in detail, so read its fairness page.
Why the house edge exists
The chance that a round reaches at least multiplier m is:
P(reach m) = (1 − edge) ÷ mIf you always cash out at m, you win m times your stake with probability (1 − edge) ÷ m, and you lose the stake otherwise. Your expected return per unit staked is then m × (1 − edge) ÷ m = 1 − edge. You lose the edge on average, at every target.
- The same formula shows why instant crashes happen. The chance of a crash at exactly 1.00x is about the edge itself, so with a 2% edge roughly one round in fifty ends before anyone can react.
- Typical house edges for crash are about 1–4%, depending on the site. Always check the site’s own fairness page for its figure.
What the odds look like
| Target | 1% edge | 4% edge |
|---|---|---|
| 1.5x | 66.0% | 64.0% |
| 2x | 49.5% | 48.0% |
| 5x | 19.8% | 19.2% |
| 10x | 9.9% | 9.6% |
Read it as: with a 1% edge, about one round in two reaches 2x. Aim for 10x and you win about one round in ten, with a bigger payout when it happens. The expected loss is the same in both cases, which is the point we explore in crash strategy, auto cash-out and the house edge.
A worked example
You stake 10 units with an auto cash-out at 2.5x. The site’s edge is 2%.
- Chance to win: (1 − 0.02) ÷ 2.5 = 39.2%. A win pays 25 units, a profit of 15.
- Chance to lose: 60.8%. A loss costs 10.
- Expected result: 0.392 × 15 − 0.608 × 10 = 5.88 − 6.08 = −0.20 units, which is 2% of the stake.
Play a thousand such rounds and the expected loss is about 200 units. You can run your own numbers in the Odds Lab on the home page.
What changes between sites
- The edge. Sites differ. A 1% edge and a 4% edge are very different over many rounds.
- Limits and speed. Maximum bet, maximum payout and round length are set by the operator.
- Fairness proof. Some sites let you verify each round, and some do not. See provably fair crash: how to verify a round.
- Payments. Skins, crypto or cards, and the Steam rules that apply to skins.
For how the first three of our reviewed sites present these details, see the PLG.BET review and the Gamdom review, and the full ranking for all five.
Key points
- The crash point is random and fixed before the round starts.
- The chance of reaching m is about (1 − edge) ÷ m.
- Your expected loss is the edge, at every cash-out target.
- Nothing you click changes the result. You choose only when to stop.