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Combo Seven Slot - Review, Free & Demo Play

Combo Seven
Combo Seven
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Updated: 15.08.2025
Reviewed by: Fabio Duarte
Combo Seven is a classic slot game released on 19/01/2023 by Onlyplay. This game comes with minimalist graphics and simple rules to provide an authentic slot machine experience. In our review, we will give you all the vital info about the game’s key characteristics and discuss its winning potential. Also, we will offer you to try its demo version for free and post a list of the best online venues where this slot is available for real money play.
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18+ | New players only | Terms Apply | Please play responsibly | gamblingtherapy.org

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In this review
  1. Slot details
  2. Theme
  3. Bonus Rounds & Free Spins
  4. Summary
  5. Where to play
General information about Combo Seven slot

General information about Combo Seven slot

Rating by Fabio Duarte:
7.1
User’s Rating: Not rated yet
Onlyplay
Write a review +25 SJ points
  • Release Date:
    19.01.2023
  • Volatility:
    High
  • RTP:
    95.2%
  • Multiplier:
    No
  • Max. win:
    1,000x
  • Bonus game:
    No
  • Free spins:
    Yes
  • Scatter Symbol:
    Yes
  • Wild symbol:
    No
  • Symbol Stacked:
    No
  • Jackpot Game:
    No
  • Slot lines:
    5
  • Slot reels:
    3
  • Layout:
    3-3
  • Stakes range (€/£/$):
    1 to 50
  • Slot Theme:
    Luck
  • Technology:
    HTML5
More infoLess info

Licensed and tested by

  • BMM Testlabs
  • iTech Labs

How to Play

Combo Seven is an extremely simple game. Even if you’re a beginner player, you’ll have no problem getting ready to play it. Just follow these steps:

  1. Load the slot
  2. Click on “i” to review the paytable and read the game’s rules
  3. Select your bet value by clicking on “+” or “-” located below the reels
  4. Press the Spin button

Combo Seven is a classic slot game with a 3x3 reel setup and 5 fixed paylines. You can bet between €1 and €50 and have a chance to win up to 1,000x your stake. The game comes with the Free Spins bonus which is the only special feature present. The symbol collection consists of multiple 7’s symbols and a Scatter that grants free spins. There are 3 Jackpot prizes, namely Mini, Major, and Grand, available for win.

Combo Seven RTP and Volatility

7 
This medium-high-volatility game has an RTP of 95.16%.
Combo Seven comes with a medium variance level and an RTP rate of 95.16%. Medium-high-volatility slots are known for being quite predictable and consistent and offer a better gaming experience than low-volatility or high-volatility games. The RTP rate of 95.16% is considered below the average. In theory, you can expect to receive some €95.16 for every €100 wagered.

Theme

7.2 

Onlyplay has clearly aimed at creating a retro-looking game while designing Combo Seven. The slot has generic graphics that look dated, honestly. The audio isn’t impressive, too, and we can describe the game’s audio-visual presentation as mediocre.

The reels are set against the orange-yellow fade background and are framed with flashing lamps. To the left of the reels, three jackpot prizes are displayed according to the current bet size. The paytable consists of colored 7’s symbols that offer payouts between 0.5x and 50x for combinations of 3 matching icons. That’s the only possible winning combination as the game has only 3 reels.

The Free Spins symbol is the game’s Scatter and landing 3 of them anywhere in view, you’ll activate a bonus round with 10 free spins.

Theme
Combo Seven Slot - Paytable

Mobile Compatibility

Combo Seven Slot Mobile

Combo Seven is an HTML5 slot optimized for mobile gaming. You can spin its reels on smartphones and tablets as well as on desktop and laptop devices. You can play this game in any web browser on your PC with no need to download any additional software.

About Onlyplay

Onlyplay has become a gaming provider having previous experience in several industry sub-segments, such as crypto, social gaming, lottery, and land-based casino. The company was founded in 2007 and is focused on experimenting when producing new titles and developing new features. Their gaming portfolio is filled with unique and interesting games many of which are popular among gamblers all around the world.

Design and animations take a special place in the heart of Onlyplay game development team. Paying lots of attention to this aspect of game creation, the studio comes up with immersive slots that create a special atmosphere and captivate players from the get-go.

Myths of Bastet, Joker Coins, Jungle Gold, Fruity Book, and Crystal Cascade are a few slot games from this provider’s catalog.

Bonus Rounds & Free Spins

8 

Free Spins

When 3 Scatter symbols hit the reels in the base game, you get awarded 10 free spins. The free spins round is played automatically. The number of remaining free spins is displayed on the Spin button during the feature.
Combo Seven Slot - Free Spins

Jackpot

Three jackpot prizes are available in Combo Seven. You can win the Mini, Major, or Grand Jackpot by filling the playing grid with nine symbols corresponding to the respective prize. The symbol colors and jackpot amounts are always on display in the left part of the playing screen.

Combo Seven Demo Play

On our page, you can try out a free demo of Combo Seven which doesn’t require signing up or making a deposit. All you need to do is just load a demo on your device and spin the reels in trial mode using free credits to wager. You can get used to the game with no risk of losing any of your money and decide whether you’d like to bet some real cash on it at an online casino or not.

Max Win

6 
The maximum possible win is 1,000x the bet.
Combo Seven comes with a moderate winning potential. The game offers a Grand jackpot worth 1,000x your stake which is the maximum amount you can win in this game. To hit the max win, you’ll need to fill the playing grid with identical golden 7s which are the most valuable paytable symbols.

Combo Seven slot - Video review

✅ Try this slot for free on our website - https://slotsjudge.com/online-slots/combo-seven/ Hi everyone! In this video we’ll show you bonus game in Combo Seven from Tom Horn Gaming. The slot machine has average volatility and RTP of 95.0%. The playing field consists of 3 reels and 3 rows, the minimum bet starts with $1, and the maximum bet reaches $50. By the way, the maximum winnings are 1,000x of the bet size.The main features of the machine are Free spins, Scatter Symbol. Write in the comments, have you played Combo Seven from Onlyplay and how do you like the winnings presented in this video! No links used during live stream or in the description are transaction links. 18+ | Play Responsibly | Begambleaware.org. #slots #onlinecasino #bigwin

Overall Rating

7.1
Onlyplay has yet another classic video slot on offer. Combo Seven is a 3x3 machine that features only Lucky 7 symbols, as its title suggests. The game is aimed at players who don’t care much about visuals and extra features and prefer pure slot experience. The gameplay is quite monotonous, but still, there are Free Spins and 3 Jackpot prizes up for grabs. This video slot is also suitable for beginners due to its simplicity and balanced math.
Hits
Three jackpots
Free spins
Misses
RTP of 95.16%
Only 5 paylines
Fabio Duarte
Fabio Duarte
Expert in: News, Blog, Slot reviews, Payments
Fabio is a young writer with +6 years of experience in gambling & betting. Fabio creates professional reviews of casino and slots. Every single article Fabio made exhibits deep analytical skill and comprehensive coverage of a topic. It’s Fabio – one of the leading authors on slotsjudge.com.

2162 articles

Reviewed by Editor-in-Chief
Nikita Lukanenoks

Combo Seven Slot - FAQ

What is the most valuable symbol in Combo Seven?

The highest-paying symbol is the golden 7. It offers 50x the bet for 3 symbols on the payline.

What is the RTP rate of Combo Seven?

The game has an RTP of 95.16%.

Are there any bonus rounds in Combo Seven?

There is a Free Spins bonus round with 10 free games. You’ll need to land 3 Scatters to trigger it.

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