Book of Slingo Casino Game Review

BetMGM Mar 15, 2025, 2:51 AM
min read
The Book of Slingo slot title flanked by wings, purple gems, and serpents on a desert background, with palms on either side and pyramids in the background.
  • A captivating blend of slots and bingo
  • Match numbers on the grid with a special reel
  • Complete Slingo lines to upgrade the pay ladder
  • Features include wilds, super wilds, and free spins

The Book of Slingo slot is a creative and entertaining hybrid of two of the most popular casino games. Combining online slots with bingo, this ancient Egyptian-themed fusion of fun may seem confusing at first, but it doesn’t take much time to get used to the fresh format, thanks to a player-friendly interface and intuitive gameplay mechanics. Explore the game’s novel design and compelling features in this online slot review.

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Book of Slingo Game Highlights

Completed bingo lines upgrade the Slingo level, increasing the payout for the round and adding perks like free spins and expanding symbols at upper levels. Wilds and super wilds can target specific tiles on the grid, making it easier to complete lines and gain levels. After reaching the limit for spins on the bingo grid, you can choose to take the win as it stands or risk wagering more to reach higher Slingo levels. 

Book of Slingo Game Quick Facts and Features

Software Provider SLINGO
RTP 96.34%
Volatility Medium
Jackpot Type N/A
Paylines 10
Reels 5×5
Max Wager $2
Max Win N/A

Does the Book of Slingo Slot Pay Real Money?

Online gambling is legal in several states. Choose a licensed operator to enjoy the best slots to play online for real money. Cash prizes in Book of Slingo and other online slot games are available at BetMGM Casino, which is legally active in New Jersey, Pennsylvania, Michigan, and West Virginia.

How To Play the Book of Slingo Slot

Launch the game to find a board filled with numbers. A row of blank tiles lies below, and every spin fills the added row with random numbers. Match numbers on the 5×5 grid and the extra row to attempt to clear the board. One bet grants 11 spins, with the goal being to remove as many numbers as possible with the allotted spins.

Every completed line of five numbers upgrades the Slingo level, whether it’s a horizontal, vertical, or diagonal line. There are 11 levels on the upgrade ladder, with every level increasing the payout value. At the end of the 11th spin, you can choose to take the payout for the Slingo level, increase the stake for more spins, or risk it all for the chance to win more with the Free Spins bonus.

The initial bet of $0.20, $0.40, $1, or $2 affects the payout value for all Slingo levels. For example, the $0.20 bet awards $50 at the highest level, while the $2 bet awards $250 at the same level. With that in mind, select the desired stake with the “Bet” button, then hit the “Start Game” button to trigger 11 automatic spins. 

Book of Slingo Game Features

The Book of Slingo slot includes features found in the best slot games online, including two types of wilds to boost the odds of winning. Wilds and super wilds can land in the extra row on any spin, allowing you to target specific tiles that bring you closer to completing Slingo lines. Regular wilds can remove numbers on the same reel where they land, while super wilds can reach any tile on the grid.

Free spin symbols, book symbols, and blockers can also land on the spinning row. Free spin symbols add additional spins to the remaining count. Book symbols award multiple free spins with at least three in a row. Beware of the blocker symbol, though, as it takes away the chance to remove a number from the reel above its position until the next spin. 

As mentioned earlier, reaching the end of the 11th spin gives you a choice between immediate payout, additional spins at a higher stake, or free spins with expanding symbols. The third option is only available at the eighth Slingo level, and it begins a bonus mini-game where the stakes are higher than ever.

Book of Slingo Slot Bonuses and Jackpots

There are no jackpots in the Book of Slingo slot. The top prize is awarded at the 11th Slingo level, but the bonus mechanic kicks in at level eight. Reaching level eight offers the first choice between payout and free spins. Subsequent levels increase the payout and upgrade the Free Spins bonus, adding more powerful expanding symbols the higher you go.

The bonus resembles the setup of traditional online slot machines, with 5×3 reels and a variety of low and high-pay symbols. There are 10 active paylines during free spins, and wins are triggered from left to right across the reels. Expanding symbols cover entire reels when they land, and the better the symbol, the higher the payout.

How To Win the Book of Slingo Game

Unlike the completely random outcomes of other slots, Slingo games involve a bit of strategy when wilds come into play. Whenever wilds and super wilds drop, you must choose the tiles to remove carefully. The optimal strategy is to select the best positions for complete Slingo lines, as the main goal is to reach the highest level at the end of the 11th spin.

If you reach the highest levels, the choice between instant payout and free spins becomes a crucial decision. Do you take the win and try again, or trigger free spins in the hopes of winning more? It’s a gamble that can boost the win significantly if you’re lucky, but it can also leave you with less than you would get from the Slingo level payout.

Book of Slingo Game Graphics and Design

High-quality graphics and animations create an immersive atmosphere in the Book of Slingo slot. A sandstorm whips palm trees in the background, with the limestone-style grid set against the backdrop of an ancient temple. Symbols in the bonus round are vibrant and highly detailed, with the most prominent gods of Egypt taking center stage as expanding symbols. The interface is surprisingly straightforward, considering the ambitious design of a hybrid game, and the game runs flawlessly on all compatible devices, a characteristic of all good slot games online.

Book of Slingo Slot Symbols

Scarab beetles represent wilds and super wilds in the base game. Book symbols replace scarab beetle wilds during the Free Spins bonus, substituting for all pay symbols. The bonus removes all bingo numbers, with pay symbols split between playing cards and depictions of Egyptian gods like Horus, Anubis, and Sobek. 

The 10, J, and Q award 1x the bet for five matching symbols, while the K and A award 1.5x. Osiris and Sobek award 7.5x for five of a kind. Anubis reaches 20x the bet for five matches, while Horus matches the book wild with 50x for a full payline. Horus, Anubis, Osiris, and Sobek require only two matching symbols to secure a win.

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