Slingo Reel King

Review, Demo Play, Payout, Free Spins & Bonuses

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2.4 out of 5 stars
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  • Fun game if you like bingo
  • Big bonus game available here
  • This slot has a decent RTP
  • May not appeal to fans of traditional games
  • There is no gamble feature

Slingo Reel King is an online video slot from game designer Slingo Originals. It has an RTP of 95% and we rate the variance as low-medium. The game has a 5x5 reel set which generates 12 pay ways. The features include a wild, free spins and a bonus game.


Slingo Reel King is a bingo slot variant from game maker Slingo Originals, and will be familiar to players who frequent their products. It plays out on a 5x5 reel set with 12 pay ways and has a number of features including a wild and free spins as well as a bonus game.

Each game begins with 11 spins and the aim of the game is to match numbers on the reels with the numbers on the grid. The cash prize available will depend upon the number of lines you manage to complete, and to the left of the reels you will see the prize scale which reflects that. Stages 5-9 trigger the Reel King Bonus.

When the wild appears on the row of numbers below the grid, the player gets the chance to select any number on the column above the wild. More than 1 wild can appear at any time. There is also a super wild which allows the player to check any number anywhere on the grid. Extra spins are available after each spin, but these must be bought. 

The diamond is a blocking symbol, which closes out numbers above it, while free spin symbols offer an extra free game, but are removed from the reels in this phase. The Reel King Bonus Trail appears above the reels and this can randomly hold. When the feature plays a random number of Reel King characters appear and trigger prizes. Each character continues until a losing spin appears, and the multipliers affect the base stake.

Fans of this designer’s work will find more Slingo Originals slots here at Slots Temple, such as the Reel King Megaways slot

Theme, Graphics and Soundtrack 

Bingo and the target of a full house is the theme of Slingo Reel King, and players are greeted with a card full of numbers, and as they are cleared a crown symbol stamps them. To the left the number of lines completed appear on a climbing scale, with the full house at the top of the list. Wins are clearly marked in a window to the right. A punchy theme plays and the backdrop to the reels is a fleur-de-lis flock wallpaper.

Slingo Reel King

Slingo Reel King RTP and Variance 

The official RTP of Slingo Reel King is 95% and the variance is low to medium. Low wins can be obtained regularly, but players have to think tactically about whether to by additional spins and weigh that price against potential wins.

How to Play Slingo Reel King

If you are familiar with bingo games you will find the game quite easy to play, but here area few tips to get you to a full house:

  1. Once the main screen opens go to the top right hand corner and click on the menu icon.
  2. First up you can click on the speaker icon and mute the soundtrack if you find it distracting.
  3. Now click on the help button to open a new set of screens.
  4. First up you is a brief explanation of the bingo theme and an explanation of the wager options.
  5. Next up see the win levels which are climbed each time a Sligo win occurs.
  6. The next screen explains how the Slingo King Trail can be advanced.
  7. The next 2 screens explain the symbols which appear and how many can be triggered at different levels.
  8. The following two screens explains the wilds and blocker symbols.
  9. The next 3 screens allows you to set pre-prepared limits on the number of bought spins by choosing the number and the price and the maximum stake per extra game, and show images you can expect to see on the game screen.
  10. Next you will see thumbnails of the win lines.
  11. Strategy tips follow, then an explanation of free games and a brief rules page.
  12. Return to the main screen and on the bottom left set your wager.

You are all set to play, but remember you can play this game for free at Slots Temple, and we recommend you take advantage of this opportunity to familiarise yourself with this game, before playing for cash at an online casino.
Once playing for real, set yourself a budget for each session and play responsibly leaving the site when the fun ends.

Bet Sizes and Pay Table Wins 

Bet sizes in Slingo Reel King range from 0.20 to 25 and the pay table is as follows:

Full House = x500

10 Lines = x100

9 Lines = x50

8 Lines = x25

7 Lines = x10

6 Lines = x5

5 Lines = x3

4 Lines = x2

3 Lines = x1

2 Lines = x0.3

1 Line = x0.1

Slingo Reel King Bonus Features and Free Spins 

The Reel King Bonus Trail can be triggered randomly at any stage, and held after any spin. Stages 5-9 trigger the bonus game with new characters which spin to reveal multipliers ranging from x25 through x10, x5 and x2.
When the free spins symbol appears on the bottom reel one extra game is awarded. Fans of a free spins slot will find many more here at Slots Temple. 

Slingo Reel King Review 

Slingo Originals love the idea of a bingo game, and this is another example which comes with the Reel King Bonus Trail, offering lots of multipliers. Unfortunately this feature can be tricky to land, with the trail often starting, but failing to hold. The designer describes these as random holds, and random is the correct adjective!

This is a little disappointing since the base game offers pretty low wins unless you are going to risk buying spins. Perseverence here, however can pay off as long as you keep an eye on potential wins versus the accumulative wager.

Disclaimer: Slingo Reel King trademark / license is owned by Slingo Originals. This site is not endorsed by Slingo Originals.

* This button takes you to an external third-party partner real money casino website. Although we try and match games with Casinos that have them, we advise that you double-check the slot content on the casino website before making a deposit or signing up.

Slot Data
Slot Name: Slingo Reel King
Software: Slingo Originals
RTP: 95%
Volatility: Low volatility
Paylines: 12
Reels: 5
Min Bet (all lines covered): £0.20 (GBP)
Max Bet: £25 (GBP)
Top Win: 500
Features: Bonus Game, Wild Symbol, Free Spins, Low volatility, 5 Reels
UK Available in GB? Yes. Slingo Originals have a UKGC license and are allowed to offer their games at UK licensed casinos.


What is the RTP?


What is the variance?

Low to medium.

Can I play on my phone?


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