Thunder Zeus

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1 Reels 8
2. Paylines 18
3. Progressive No
4. Maximum coins 18
5. Jackpot 5000
6. Maximum jackpot in coins 1000
7. Multiplier No
8. Scatter symbol Yes
9. Free Spins Yes
10. Betting range from $0.18 up to $90
11. Coin Bet Range from $0.01 up to $5
12. Coins per line 1
13. Bonus Game No
14. Wild symbol Yes
15. Payout percent 95.1

One of the most used themes in the online slots world is that of the Greek gods, and Thunder Zeus by Booongo is yet another entry into that sub-genre. While many titles in that group are fairly generic, this game stands out in a number of ways. It has a different format than we've ever seen, and it has a special free spins feature that gives you eight reels of action. This game definitely offers a lot in terms of fun gameplay, and the graphics aren't bad at all either.

A Non-Standard Slot Format

When you first look at this game, it's not readily apparent how the paylines work because the reels are split into two parts. You'll see five reels on the left with the corner cut off, and that fits into the right-hand side with its own five reels with a corner cut off as well. Along these lines, you have nine paylines on each side. The lines pay left-to-right on the left-hand side, and they pay right-to-left on the right-hand side, so they're essentially mirror images of each other.

In terms of betting, there are 18 total paylines on any given spin, and you can make bets with coins that range from $0.01 to $5 apiece. This means you'll wager $0.18 on the lower end or $90 on the upper end with a lot of different denominations in between.

Free Spins Bonus Feature

The main gameplay feature centers around free spins. While they're a nice source of value in most games, they fundamentally change the functionality of the slot in Thunder Zeus. Zeus' lightning bolt is the scatter, and it appears on the middle four reels of the game only. Get two or more on the reels, and you'll trigger a set of free spins. When this happens, the two sides of the game combine to create a new format with eight reels and three rows, and you'll get 18 total paylines that pay in each direction. While this gives you a lot of extra ways to win the normal payouts, it also introduces six-, seven- and eight-of-a-kind wins, which are the largest payouts in the game.

When you trigger the free spins, you'll get four free turns for each scatter that you earn. You'll also get wild symbols that cover three random reels, and that gives you even better chances to hit those eight-of-a-kind payouts and the larger wins in the game while obviously providing a tremendous amount of value. You can't get winning combinations of more than three of a kind of the wilds during this feature, but that doesn't hurt the total value you get as a result of the extra wilds added to every free spin and the larger available payouts.

Greek God Symbols

Zeus is the main symbol in the game. Eight gets you a 1,000x win, and seven pays 300x. Hades is also a high-paying symbol, and you can earn 800x for eight or 250x for seven of Zeus' brother. The other brother of Zeus is Poseidon, and he'll get you 500x for eight of a kind or 200x for seven.

You'll also find Aphrodite on the reels, and she gives the same payouts as Poseidon. Artemis and Dionysus show up in this game too, and they each pay 500x for eight on an activated payline. However, they both pay just 150x for seven.

Low-Paying Card Rank Symbols

Players have four lower-tier symbols in this game, but they all have pretty decent payouts. The blue A and K symbols, along with the red Q and J symbols, all pay the same thing. That's 300x for eight of a kind for the top wins, and you can also score 150x for seven.

Note that all symbols in the game pay for at least three of a kind or more, and this gives you plenty of ways to win.

A Note on Strategy

The volatility of this game is a little weird because of the non-traditional format, so we suggest players focus on longer sessions with smaller bet sizes than they would normally get. This is because the free spins feature is such a critical part of the overall gameplay, and you want to give yourself the best opportunities to hit it as you can.


Booongo's Thunder Zeus video slot definitely gives players something to look forward to with its non-standard format and eight-reel free spins bonus feature. With only two scatters required to activate it, it's easy to see how you'll run into it over and over if your sessions are long enough, and that's why we recommend the strategy that we do with this slot. Overall, it's a great-looking title with awesome gameplay, and we recommend that players try it to see if it fits what they are looking for.

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