Among the many online slot machines featuring Greek mythology, Apollo Stacks deliberately aims to innovate and bring something new to the table. Focusing on the sun god Apollo, who constantly watches over the 5×4 reels, the slot offers Wild symbols, jackpots, and customizable bonus rounds. Learn more about this slot machine’s unique mechanics, including tips beyond basic online slots strategy, to better understand how bonus winnings work.
Apollo Stacks Slot Machine Facts
| Software Provider | GAMEIOM |
| RTP | 95.99%* |
| Volatility | Medium-High |
| Jackpot Type | Fixed |
| Paylines | 50 |
| Reels | 5×4 |
| Max Wager | 600 credits |
| Max Win | 250,000x |
* Please note that the return to player (RTP) rate for this slot game may differ from one jurisdiction to another.
Apollo Stacks may look like a fairly standard slot machine at first glance — no payline gimmicks like Megaways or cluster pays. Instead, the slot stands out by virtue of its bonus mechanics, including solid gold reels and a portrait of Apollo himself.
Apollo Stacks stands alongside the many Greek mythology-themed slots available at BetMGM Casino. The game’s symbols include the mythical Pegasus, Apollo, an ancient Greek helmet, a lyre, a sword, and a shield.
Apollo Stacks Bets and Jackpots
The slot offers a broad range of bets, especially among online slots in Canada. The minimum bet is 60 credits and the maximum is 600 credits.
Four jackpots are available – Mini, Minor, Major, and Grand – each bigger than the last. These jackpots are fixed relative to the wager and require you to fill different reels with gold backgrounds. During play, one or more reels may randomly turn golden. Jackpots are paid out from smallest to largest for filling two, three, four, and five reels with gold. The rare Apollo Stacks symbol may also appear on the fifth reel, which quickly turns reels golden.
The gold background mechanic is a new twist on fixed jackpots, which are often awarded in other online slots by matching certain symbols. A splash of gold also reinforces the theming, reminiscent of King Midas, and nicely complements the colour scheme of each symbol in Apollo Stacks.
Apollo Stacks Special Features
Most spins in this slot machine are simply about being lucky enough to have winning combinations of symbols line up. However, once in a while, luck will trigger one of a game’s special features. Apollo Stacks doesn’t have any feature-buy mechanics, so these are entirely luck-based.
Special Symbols
One notable feature is the Apollo head symbol, which is just one part of a larger Apollo portrait spread over four total symbols. Any of these bottom parts of Apollo count as an Apollo head symbol, which is the most valuable symbol aside from Wilds and awards the largest winnings. However, Apollo portrait pieces can’t be used alongside Wild symbols.
Speaking of, Wild symbols are laurel wreaths. They can appear during any spin to substitute for regular paying symbols – even during bonus extra spins rounds.
Bonus Rounds
Special fiery sun symbols — appropriate for Apollo — can appear on reels 1, 3, and 5. If a sun appears on all three of these reels at once, a bonus extra spins round is triggered. The number of extra bonus spins is customizable. These are the options that appear when you trigger the feature:
- 15 extra spins with Wild symbols on reels 1 and 2
- 10 extra spins with Wild symbols on reels 1, 2, and 3
- 6 extra spins with Wild symbols on reels 1, 2, 3, and 4
The first option gives the longest bonus round, with the most opportunities to retrigger suns and extend the round, but has the fewest Wilds and potentially the least win potential per spin. The third option guarantees six wins, as any symbol on reel 5 will trigger several paylines. Still, it’s the shortest experience, with the most Wilds and potentially the highest win potential per spin. Option two balances for experiences.
Similar Online Slot Machines
These Greek Mythology-themed slots also share some game mechanics in common with Apollo Stacks, like fixed jackpots.
Medusa Queen of Stone
| Software Provider | IGT |
| RTP | 92.10%* |
| Volatility | Medium |
| Jackpot Type | N/A |
| Paylines | 30 |
| Reels | 5 |
| Max Wager | 540 credits |
| Max Win | 9,000x |
* Please note that the return to player (RTP) rate for this slot game may differ from one jurisdiction to another.
Medusa Queen of Stone adapts a classic Greek myth for online casinos. Medusa can turn certain symbols to stone, transforming them into Wilds. However, this title lacks the jackpots found in Apollo Stacks.
Cerberus Gold
| Software Provider | Pear Fiction Studios |
| RTP | 96.02%* |
| Volatility | Medium |
| Jackpot Type | Fixed |
| Paylines | 243–7,776 |
| Reels | 5 |
| Max Wager | 50 credits |
| Max Win | 5,000x |
* Please note that the return to player (RTP) rate for this slot game may differ from one jurisdiction to another.
Cerberus Gold is a mix of decent RTP with medium volatility for a more casual experience. The expanding reels feature will also expand the number of available paylines. Five different jackpots are available, from Micro to Mega.
Wisdom of Athena
| Software Provider | Pragmatic Play |
| RTP | 94.09%* |
| Volatility | High |
| Jackpot Type | N/A |
| Paylines | Pay Anywhere |
| Reels | 6 |
| Max Wager | 100 credits |
| Max Win | 5,000x |
* Please note that the return to player (RTP) rate for this slot game may differ from one jurisdiction to another.
The wisdom of Athena does away with classic paylines in favour of pay anywhere wins. If a given symbol appears eight or more times anywhere on the grid, that counts as a win, and the symbols will cascade down for more potential wins.
