10 Essential Retro Online Slots to Try

Everybody loves a little bit of nostalgia - something to take you back to a memorable moment in time when everything was a lot easier. Many games providers recognise the human need for nostalgia, especially when it comes to the games we used to play.

With that in mind, we have pulled together some of our favourite retro slots, all of which are available to play at the best online casinos in Ireland.

1. Arcader (Thunderkick)

• Released: 2014
• Maximum Win: 1,600x
• RTP: 96.1%
• Volatility: Medium

Despite being released almost a decade ago, Arcader still looks like a modern day video slot, offering clean graphics and smooth gameplay. The pixelated reel symbols and synth-pop background music secures this mesmerising slot game a place on our list of retro slot machines. 

The reel symbols consist mainly of fruits, along with the seemingly obligatory bells and red/blue 7s. Also, featuring Expanded and Wild symbols, the bonus round is triggered when you land three or more Scatter symbols. An initial nine free spins is awarded, with any additional Scatters offering extra multipliers.

2. Break Da Bank Again (Games Global)

• Released: 2008
• Maximum Win: 37,575x
• RTP: 95.43%
• Volatility: High

An old school slot game, Break da Bank Again is actually a sequel to Break da Bank - with both of these games now achieving cult status within the slots community. 

Played across a standard 5x3 grid with nine payline, the basic reel charms certainly add to the charm of this original slot.

The standout feature is the bonus round, which is triggered when you land at least three Scatter symbols across the reels. During this feature, all of the wins are multiplied by x5, with wins that contain Wild symbols multiplied by x25.

3. Cops ‘n’ Robbers Megaways (Inspired)

• Released: 2021
• Maximum Win: 12,500x
• RTP: 95.5%
• Volatility: High

Although this release features the modern Megaways game mechanic, we still have to choose it over the original game, Cops ‘n’ Robbers.

Offering the same game art, reel symbols and styling, the only major difference is the fact that you have up to 117,649 ways to win on every spin. On top of that, a police lamp can randomly flash either blue or red during the base game to trigger one of two exciting features.

Landing three or more Scatter symbols will trigger the main feature bonus, with players given the choice between The Chase or eight free spins, the latter of which can be gambled up to a maximum of 25 free spins.

4. Space Invaders (Bell Fruit Games) 

• Released: 2021
• Maximum Win: 1,250x
• RTP: 95%
• Volatility: Medium/High

If you ask any 80s kids what their favourite arcade games was, the chances are they will say Space Invaders. Although it certainly looks outdated by modern standards, it retains cult status, as does the slot game of the same name.

While Bell Fruit Games really didn’t need to work too hard to transform this original game into an online slot, they have managed to add some additional bonus features to keep things exciting.

Unearthing the Reel Modifiers can award one of five unique features - Wild Cannon, Monster Wild, 5 of a Kind, Mega Reel and Bonus Boost - during the base game. 

Meanwhile, landing three or more Scatter symbols triggers a classic bonus round, which consists of six different bonuses appearing on a ladder trail. Simply spin the wheel to see which one you will be awarded.

5. Reel King (Inspired) 

• Released: 2014
• Maximum Win: 50,000x
• RTP: 94%
• Volatility: Low

A keen favourite amongst pub-going gamblers, Reel King continues to prove popular with online audiences, too. While the land-based original was developed by Barcrest, Inspired took the reins for the online version, delivering a cult classic.

The iconic bonus feature is all about hearing those five reels ding yellow to trigger a mini game of spinning slot machines. These mini slots will keep spinning as long as they are triggering winning combinations, offering plenty of big-win potential.

One of the most popular features here is the Reel King Gamble Ladder, which offers a true 50% chance of doubling your win, all the way up to 512x your original win.

6. Cubes (Hacksaw Gaming) 

• Released: 2020
• Maximum Win: 3,167x
• RTP: 96.35%
• Volatility: High

Our fascination with the Rubik’s Cube continues to this day, with Hacksaw Gaming masterfully tapping into this to create an iconic slot game, Cubes.

Played on a 5x5 grid that expands up to 11x11 with each consecutive win, this is a Cluster Pays slot that sees winning combinations paid out anytime five or more cubes are connected in a cluster. Moreover, the centre cube contains a multiplier, which will multiply any wins, up to a maximum of x25.

Lighting up all the different coloured letters of the word Cube will trigger a potentially lucrative Free Spins Bonus, awarding an initial 10 free spins.

7. Double Diamond (IGT)

• Released: 2005
• Maximum Win: 2,500x
• RTP: 95.44%
• Volatility: Medium

IGT is one of the most successful manufacturers of classic land-based slot machines, so it should come as little surprise to see one of their releases make it onto our list. Double Diamond, a classic slot machine that has stood proudly in many Las Vegas casinos for decades, has now become an online hit, too.

Played on the most basic three-reel format, your aim is to line up three matching Single, Double, Triple Bar, Cherries, 7s or Double Diamond symbols to trigger a win. 

There is no bonus round or fancy features here - simply spin and win.

8. Retro Tapes Cluster Link (Push Gaming) 

• Released: 2022
• Maximum Win: 10,000x
• RTP: 95.47%
• Volatility: High

Only released a few years ago, Retro Tapes Cluster Link is the newest entry on our retro games list. Its creator, Push Gaming, have done a masterful job to squeeze as much nostalgia into a single slot machine as is humanly possible.

Feeling quite similar to their huge hit Jammin’ Jars, the reels are adorned with different coloured cassette tapes of varying values. There’s also a Wild symbol that will multiply any winning combination it appears in.

For a retro slot, this release boasts quite a few entertaining features, including Instant Prizes, Cluster Links and the Magnet feature. The bonus round is the Top Charts Feature, which is triggered when you land three or more Wild Tape symbols on the grid.

9. Street Fighter 2: The World Warrior (NetEnt) 

• Released: 2020
• Maximum Win: 7,142x
• RTP: 96.06%
• Volatility: High

Did you ever huddle around a Street Fighter arcade machine with friends to beat the high score? Thanks to NetEnt, you can now relive those memories with this exciting slot release.

A classic 5x5 Cluster Pays slot machine; you will find classic J-A reel symbols, as well as appearances from a handful of characters from the original video game.

The artwork is pixelated to add authenticity as you choose between the eight characters to pick a fight with a random opponent. Winning this will see you awarded the Beat the Boss Free Spins, where there are four levels to ascend, with increasing multipliers on each level.

10. Mega Joker (NetEnt)

• Released: 2013
• Maximum Win: 2,000x
• RTP:  99%
• Volatility: High

Mega Joker is a classic three-reel slot machine, similar to one you would find on any casino gaming floor. 

This old school feel is hammered home by fruit symbols - Cherries, Lemons, Watermelons, Jesters, Bells and 7s. Offering an incredible RTP of 99%, your aim is to land base game wins to move up to the Supermeter, all the way to a maximum win of 2,000x.