Slingo is a hybrid format that combines a bingo-style grid with slot mechanics, producing a gameplay experience distinct from either genre on its own. Developed and licensed by Gaming Realms, Slingo games have grown into one of the most distinctive categories in the UK online casino market, with a catalogue spanning dozens of themed variants, from officially licensed titles to original Gaming Realms releases.

Lottoland's Slingo casino section brings together a wide selection of these titles in one place, available alongside our full UK online slots library, casino crash games, our UK live casino, and other casino games. Lottoland is licensed and regulated by the UK Gambling Commission (licence number 38991).

 

The History of Slingo

The Slingo format was created in 1994 in New Jersey by Sal Falciglia Sr., who replaced the symbols on a standard fruit machine with bingo numbers to produce an early browser-based hybrid game. The format grew steadily in popularity through the mid-1990s, and the first official Slingo slot machine followed in 1999.

Gaming Realms acquired the Slingo brand and IP in 2015 and began developing a dedicated range of online Slingo slots built for the modern iGaming market. The studio's licensing model opened the format up to a wide range of branded titles. These early Slingo games covered everything from classic slot franchises to TV game shows. It’s this diversity which is largely responsible for the growth of the Slingo UK market over the past decade.

 

How to Play Slingo Slots

Slingo games usually use a 5x5 grid of 25 randomly assigned numbers displayed on the main screen. Below the grid sits a single five-segment reel. Each spin of this reel reveals numbers or bonus symbols. Any numbers that match those on the grid above are marked off, much the same as the stamping action from bingo.

The goal is to complete full lines of marked-off numbers. As UK online bingo fans will no doubt already know, you need to create lines horizontally, vertically, or diagonally. These are known as Slingo lines. Each game features a prize ladder on screen, and the number of Slingo lines completed determines how far up the ladder the player progresses. Higher positions on the ladder generally correspond to larger prizes, bonus rounds, or multipliers depending on the title.

Each Slingo game starts with a set number of spins, which varies by title. Once the base spins are exhausted, players may be offered the option to purchase additional spins to continue climbing the prize ladder, but this is at an increasing cost per spin.

 

Slingo Bonus Symbols Explained

The single reel in Slingo games can land numbers or a range of bonus symbols. Understanding what each does is useful before playing:

Wild: Marks off the number directly above the wild's position on the grid. Useful for completing lines when a specific number hasn't appeared on the reel.

Super Wild: Marks off any single number anywhere on the 5x5 grid, giving full flexibility over which cell to complete.

Free Spin: Adds an extra spin to the spin counter, extending play beyond the base allocation without additional cost.

Joker: Present in select titles such as Slingo Lobstermania. Behaviour varies by game but typically allows a number to be marked off in a chosen column.

Blocker: Occupies a segment on the reel without triggering any action. Takes up space and prevents a number or beneficial symbol from landing in that position for that spin.

Devil: Appears in some titles and blocks a mark, counteracting what would otherwise be a valid number match on the grid.

 

Slingo vs Slots - What's the Difference?

Players new to the format often ask how Slingo games differ from standard online slots. The key differences are:

1. Outcome structure. Standard slots resolve on each individual spin. Slingo casino games builds across multiple spins toward a cumulative result on the prize ladder, meaning the session has a defined arc rather than being a series of independent events.
2. Grid vs reels. Slots use multiple reels with paylines or cluster mechanics. Slingo uses a single reel feeding into a fixed bingo grid, so the spatial element of the game is entirely different.
3. Spin count. Slingo games begin with a fixed number of spins, creating a natural session structure. Standard slots run indefinitely at the player's discretion.
4. Player decisions. Most standard slots are fully automated after the stake is set. Slingo introduces light decision points, such as choosing which number to mark off with a wild or deciding whether to purchase additional spins.

 

Popular Slingo Games at Lottoland

Below are some of the most played Slingo games currently available in Lottoland's UK Slingo catalogue.

 

Slingo Rainbow Riches

Slingo Rainbow Riches applies the Slingo format to one of the UK's most recognised slot brands. The Irish theme carries across with Emerald Isle visuals, and the bonus trail round - triggered by completing a set number of Slingo lines - mirrors the bonus road mechanic familiar from the original Rainbow Riches slot. One of the most consistently played Slingo casino games in the UK market.

 

Slingo Starburst

Slingo Starburst retains the cosmic colour palette and jewel symbols of the original Starburst slot within the Slingo grid format. The iconic Starburst wild appears on the reel and carries its expanding behaviour into the grid mechanic. The prize ladder features multiplier values, keeping the low-volatility, frequent-reward feel of the original.

 

Slingo Lobstermania

Slingo Lobstermania was released in 2021 and features a coastal theme with lighthouse and sandy beach imagery set to a Caribbean soundtrack. Its standout mechanic is the Joker symbol — landing three to five Jokers on the same spin can trigger multipliers of between 50x and 100x, a significantly higher variance element than most other Slingo titles.

 

Slingo Deal or No Deal

Slingo Deal or No Deal incorporates the TV game show's Banker offer mechanic into the Slingo prize ladder structure. At certain points during a session, the Banker presents a cash offer to end the game. At that point players can accept or continue spinning. Adds a genuine decision element beyond the standard wild choices present in most Slingo titles.

 

Slingo Sweet Bonanza

Slingo Sweet Bonanza brings the candy-themed visuals of the popular Sweet Bonanza slot into the Slingo grid format. Scatter symbols on the reel can trigger free spins, and multiplier bombs appear across the grid during bonus rounds, an adaptation of the tumbling multiplier mechanic from the original slot.

 

Play Slingo Games at Lottoland’s Slingo Casino

The titles above are a selection of what's available in Lottoland's Slingo casino games catalogue. New titles are added regularly as Gaming Realms and other providers release new variants.