Cascading reels — also called tumbling, avalanche, or cascade mechanics — replace the classic single-spin payout with a chain reaction that can produce multiple wins from one bet.
Does each cascade cost another stake?
Suppose a fictional paid spin costs 1. Its first winning arrangement pays 0.40 and a subsequent cascade pays 0.60: the combined payout is 1, so the net result is zero if no additional charge applies. Check the rules for when multipliers reset and whether a separate feature costs extra. Do not assume every replacement of symbols is a newly charged spin.
How a cascade works
When you land a winning combination, those symbols are removed instead of staying in place. New symbols fall down to fill the gaps, and if they form another win, the process repeats. A single spin can therefore trigger several consecutive payouts.
Multipliers
Many cascade slots increase a multiplier with each successive win in the same spin. This is why big results in these games usually come from long cascade chains rather than one lucky line.
Why it feels different
Cascades tend to create more frequent small wins and occasional explosive sequences. The underlying RTP and volatility still decide long-term behaviour, so a cascade mechanic does not by itself make a game more generous.
What to keep in mind
The chain reaction is fully random each time, and a promising start can end after one drop. Enjoy the mechanic for its pace and presentation, and judge a cascade slot by its published RTP and volatility rather than the feature name.
A cascade, a retrigger and a new paid spin
A cascade continues resolution of the current paid spin; a new spin starts another wager. A retrigger can add rounds inside a feature under its rules. The animation alone does not tell you which one happened. Check the round history and total charge if the balance looks different from the displayed win.
A multiplier might apply to one winning combination, all wins in a cascade or the accumulated feature total. For a fictional base payout of 2, a 3x multiplier gives 6 only if the rules apply it to that payout. It is not automatically 2 plus 6 or 3x every prize on the screen. Read when the multiplier increases and resets. Cascading symbols do not by themselves establish hit frequency, RTP or volatility.
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