Dolphin Reef on Mega888: 96.8% RTP, medium volatility. Expanding Wilds on reels 2 and 4 trigger re-spins. Players who want the bonus feature to show up without a long wait.
RTP 96.8%
Volatility: Medium
| RTP (developer-published) | 96.8% |
|---|---|
| Volatility | Medium |
| Theme | Coral reef |
| Bonus feature | Expanding Wilds on reels 2 and 4 trigger re-spins. |
| Best for | Players who want the bonus feature to show up without a long wait. |
Dolphin Reef shares an ocean theme with Great Blue but behaves very differently. The published RTP is 96.8% with medium volatility, so sessions tend to be flatter and less swingy.
Its core mechanic is the Expanding Wild on reels 2 and 4. When that symbol lands it expands to cover the whole reel and triggers a re-spin. Because it happens on two specific reels rather than depending on collecting Scatters, the feature shows up far more often than Great Blue's bonus round does.
The effect is that moderate wins arrive fairly consistently, but you rarely see a very large payout. This is the game to pick if you want something to actually happen during your session rather than pressing spin dozens of times for nothing. For players who get bored of long dry spells, it is a more comfortable option than a high-volatility slot.
An honest note: the RTP figure on this page is the number published by the game developer, not a result we measured ourselves. RTP is a long-run average across millions of spins — it does not predict what happens in your session. Gambling carries a risk of losing money. 18+ only.