RTP tells you what a game returns over a very long run. Volatility tells you what the path looks like on the way: steady small wins and losses, or long dry spells broken by large wins. For a session budget, volatility matters as much as RTP, because it decides how quickly a budget can run out. For RTP itself, see RTP in live casino games.
What makes a game or bet volatile
- Payout size: the bigger the payout, the rarer the win. A 35:1 bet must lose most of the time.
- Multipliers: random multipliers concentrate the return in rare rounds, and base payouts are lowered to fund them.
- Bonus rounds: game shows save much of their return for bonus games that arrive irregularly.
- Side bets: large payouts on rare hands add volatility on top of the main bet.
Live games by volatility
| Volatility | Games and bets | What a session feels like |
|---|---|---|
| Low | Baccarat Player/Banker, blackjack, roulette even-money bets, craps pass line | Frequent small wins and losses; balance drifts slowly |
| Medium | Roulette dozens and columns, sic bo totals in the middle range | Mixed runs |
| High | Roulette straight-ups, Lightning Roulette, Lightning Dice, game shows such as Crazy Time, side bets | Long dry spells, rare large wins |
The same game can be low or high volatility depending on the bet. In roulette, red and a single number cost the same; one gives you a near coin flip, the other a 1 in 37 shot.
Volatility in numbers
| Bet (single-zero roulette) | Wins per spin | Chance of no win in a run |
|---|---|---|
| Red | 18 in 37 | 5 in a row: 3.6% |
| Dozen | 12 in 37 | 10 in a row: 2.0% |
| Single number | 1 in 37 | 50 in a row: 25.5% |
Sizing stakes for volatility
The higher the volatility, the smaller each stake should be relative to your session budget. For even-money bets, 1–2% of the budget per bet is a common rule. For straight-ups and multiplier games, smaller still, so that a run of 50–100 losing rounds doesn't end the session. Higher volatility doesn't mean better value: the house edge stays the same or is higher.
If you play high-volatility games, decide in advance when to stop after a big win, as well as after losses. See responsible gaming.
Choosing a volatility level
- Long sessions on a small budget: low-volatility bets.
- Short sessions for a chance at a large win: high-volatility bets with small stakes.
- In between: mix a main low-volatility bet with a small long-shot bet.
Strategy guides for specific games: Lightning Roulette and Crazy Time.
