


81 Super Expand: Classic$$erieS Slot Review
Howard Garns was a retired architect in Indianapolis who drew a puzzle 🧩 of 81 squares and sold it to Dell Magazines.
This was back in the day when physical magazines and newspapers were a thing, and there was no social media to waste your time on, so people did puzzles instead. Crazy, I know!
Garns died in 1989 and never got a byline, or a damn dollar for his efforts. After that, a Japanese publisher picked the thing up, renamed it Sudoku, and carried it into every newspaper 📰 on the planet.
And now we have 81 Super Expand: Classic$$erieS slot from Netgame, and this time, you can make money 💰 by solving a puzzle made up of combinations of symbols.

Gameplay
The 4x3 grid has 81 winning combinations - but you knew that number was gonna be important, right? The RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.
RTP needs to be considered in conjunction with a game’s volatility rate. is 96.22%, volatility is medium, and the max multiplier is 6,480x. The max win is $388,800, with bets running from $0.20 to $60.
Down at the bottom of the paytable, the Cherries symbol pays 2x for 4-of-a-kind and 1x for 3. Grapes, Plum, Orange and Lemon are all stamped from the same die at 4x for 4-of-a-kind and 1x for 3.
Above them, Watermelon pays 40x for 4-of-a-kind and 4x for 3, the Bell pays 60x and 6x, and the 7 symbol tops the regular pays at 80x and 8x.
The Expanding Wild lands on all 4 reels and replaces everything. When it turns up as part of a winning combination, it expands to cover that entire reel, and it pays 80x for 4-of-a-kind in its own right, matching the 7.
There are also 4 progressive jackpots sitting above the reels.
Features
PROGRESSIVE JACKPOTS:
There’s no trigger symbol, no trigger combination, and nothing to collect. Any spin can win any of the 4 levels at random, which means the jackpot round is less of a feature and more of a coin flip running quietly in the background.
The ladder goes Mini at level 1, then Minor, then Major, with the Grand at level 4 and the biggest pot of the lot. Whatever a level has accrued at the moment it drops is what you get paid.
Every level takes 0.125% of every bet placed, all 4 skimming at the same rate, so half a percent of everything you wager is feeding those bars.
An important thing to note is that a level can only be won if your bet is less than the amount accrued for that jackpot. The higher your bet goes, the better your chance at the levels you can still reach.
Performance
I would have been mightily pissed off if something went wrong during my testing of this game, considering how simple it is. Fortunately, that wasn’t the case.
Maximum Win
The max win of $388,800 is the max multiplier of 6,480x landing at the top bet of $60. The smallest bet you can place is $0.20.
Conclusion
The slot's money comes from the Expanding Wild. It takes over a whole reel when it lands in a win, pays 80x for 4-of-a-kind by itself, and props up the 7 and the Bell above it.
The jackpots drop at random, so treat them as a gift from the heavens, rather than something you can work toward or rely on.
I ran the numbers on the top figure and it lines up cleanly: 81 winning combinations at 80x apiece (the top 4-of-a-kind rate shared by the 7 and the Wild), is 6,480x exactly.
That's all 4 reels showing 7s or Wilds at the same time with every combination paying the top rate.
The RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.
RTP needs to be considered in conjunction with a game’s volatility rate. allows for longer sessions and happily, the max multiplier is on the generous side for a game with medium volatility.
Grinders working the lower end of the bet range get the most out of this game since the Mini stays reachable and the Wild does its work regardless of bet.
Anyone who needs a bonus round to break up the spinning should walk on by, because the reels and the random jackpots are the entire show.
Slot Details
Game Provider: Netgame
Game Type: Video Slots
PaylinesPaylines are preset lines that run across the reels, and when you land matching symbols on them, that will result in a payout. The more paylines, the more ways you can win, but also the higher your bet per spin.: 81
RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.
RTP needs to be considered in conjunction with a game’s volatility rate.: 96.22%
Volatility RateSlot games can have low, medium, high, or extremely high volatility rates (or a combination thereof).
The less volatile the game, the more often it should pay out, but the lower the amount, the less the payout, as this is in keeping with the risk you’re taking. Volatility rate should be considered in conjunction with a game’s RTP.: Medium
Bonus Round: No
Progressive: Yes
Free Rounds: No
Max Multiplier: 6,480x
Max Win: $388,800
Published by
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