26 Oct 2026
Slot Guide · Bonus features
Bonus rounds are where slots pay most of their big wins. At DBB66 you will find all ten of the bonus types below across our slot providers. Learn how each one works, how often it tends to trigger and how to play it smartly.
Key takeaways
Base-game spins on most modern slots return only part of the RTP. The rest is paid through features such as free spins, multipliers and jackpot games. That is why players say a slot "only pays in the bonus". Knowing how each bonus works helps you pick games that match your budget and patience.
Usually triggered by three or more scatter symbols anywhere on the reels. You get a set number of spins, typically 8 to 20, at no cost. Many games let free spins retrigger, so landing more scatters during the round adds extra spins.
Every win, cascade or spin raises a multiplier, for example from 1x to 2x, 3x and beyond. Late in the round, small wins become large ones. These features are common in high-volatility games.
Sticky wilds stay in place for the rest of the free spins, while expanding wilds stretch to cover a whole reel. Both increase the number of winning lines on each spin. Games like Play’n GO Book-style slots use an expanding symbol that fills reels during free spins.
Winning symbols disappear and new ones fall into place, giving another chance to win on the same paid spin. Combined with a growing multiplier, cascades produce some of the biggest wins in modern slots. Pragmatic Play is well known for this mechanic.
Special coin symbols lock in place and the rest of the reels respin, often three times. Each new coin resets the counter. Filling the screen usually awards a grand prize. This feature is popular in Asian-themed slots and slot apps like Mega888.
You choose from boxes, chests or cards to reveal cash prizes or multipliers. The result is still random, but the interactive style makes it fun.
A prize wheel spins to award cash, free spins or entry into a jackpot wheel. Wheels are often used to decide progressive jackpot tiers, as in the Age of the Gods series.
Instead of paylines, wins come from groups of matching symbols anywhere on the grid. Combined with cascades, a single spin can chain many wins.
Each reel shows a random number of symbols on every spin, creating thousands of ways to win. Bonus rounds often add unlimited multipliers.
Pay a fixed price to go straight into the free spins. It removes the wait but costs a lot per round, and you can still receive a small win. Use it only with a clear budget.
| Bonus type | How it triggers | Volatility feel | Best for |
|---|---|---|---|
| Classic free spins | 3+ scatters | Low to medium | Beginners |
| Rising multiplier | Scatters, then wins raise the multiplier | High | Big win hunters |
| Sticky / expanding wilds | During free spins | Medium | Steady bonus wins |
| Cascades | Every winning spin | Medium to high | Fast-paced play |
| Hold and win | 6+ coin symbols | Medium | Jackpot fans |
| Pick-me | Bonus symbols | Low | Casual players |
| Wheel | Bonus symbols or random | Varies | Jackpot fans |
| Cluster pays | Groups of 5+ symbols | Medium | Grid slot fans |
| Megaways | Every spin | High | Experienced players |
| Bonus buy | Pay 50–100x bet | Very high | Fixed-budget sessions |
Free or demo slot games are a great way to learn bonus features. They use the same maths as the real version, so they are a fair preview. Remember that demo wins are not paid out, and that demo sessions often feel generous because players remember the big hits. Use them to decide which games are fun, then set a real-money budget before switching.
Tip: if a bonus feature pays less than 20x your bet, that is normal. Most bonuses pay modest amounts, and only a few deliver the big wins you see in videos.
No bonus type is always more profitable. Rising multipliers and hold-and-win features have the highest win potential, but they are also more volatile.
Most slots trigger free spins with three or more scatter symbols. The exact rule is shown in each game’s paytable.
It saves time but costs 50–100x your bet per round, and results vary. Use it only with a fixed budget.
Demo versions use the same maths, but demo wins cannot be withdrawn.
Slot TipsSlot RNG & RTPPragmatic Play TipsAge of the GodsSlot GamesPromotions
18+ · Play responsibly. Set a budget, take breaks and never chase losses. Read our responsible gaming guide and terms and conditions.
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