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777 Super Big BuildUp Deluxe Slot - Review, Free & Demo Play

777 Super Big BuildUp Deluxe
777 Super Big BuildUp Deluxe
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Updated: 14.10.2025
Reviewed by: Joe Booth
777 Super Big BuildUp Deluxe offers players a combination of classic looks and modern mechanics. It’s a multiway slot with free spins and additional cumulative prizes. And you can hit a significant win here if you are lucky enough. Please, read our detailed review of 777 Super Big BuildUp Deluxe. It will help you learn the slot’s features and improve your chances of succeeding in the game.
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In this review
  1. Slot details
  2. Theme
  3. Bonus Rounds and Free Spins
  4. Summary
  5. Where to play
General information about 777 Super Big BuildUp Deluxe slot

General information about 777 Super Big BuildUp Deluxe slot

Rating by Joe Booth:
4
User’s Rating: (based on  reviews):
9.0
Crazy Tooth Studio
Write a review +25 SJ points
  • Release Date:
    12.07.2022
  • Volatility:
    High
  • RTP:
    96.2%
  • Multiplier:
    No
  • Max. win:
    15,000x
  • Bonus game:
    No
  • Free spins:
    Yes
  • Scatter Symbol:
    Yes
  • Wild symbol:
    Yes
  • Symbol Stacked:
    No
  • Jackpot Game:
    No
  • Slot lines:
    576
  • Slot reels:
    5
  • Layout:
    5-7
  • Stakes range (€/£/$):
    0.15 to 30
  • Slot Theme:
    777
  • Technology:
    JS, HTML5
More infoLess info

Live stats from Slotsjudge

Slotsjudge employs its proprietary simulator, which runs 10,000 rounds daily per game, including the latest data for 777 Super Big BuildUp Deluxe—its current analysis reflecting the most recent results. The game exhibits a simulated RTP of 91.37%, with a declared RTP of 96.2%, indicating some variance between theoretical payout and practical performance. Hit frequency stands at 35.49%, meaning roughly one in three spins lands a win, while the average win is around 2.57 times the stake. Although the maximum win can reach impressive 1320x bets, players should be aware that volatility is high, implying less frequent but potentially substantial payouts. This blend of features suggests that the game offers significant variance, with the potential for sizeable wins offset by the unpredictability typical of high-volatility slots.
  • Declared RTP:
    96.2%
  • Simulated RTP:
    91.0%
  • Bets sum:
    €10,000
  • Wins sum:
    €9,137
  • Bets:
    10,000
  • Average Win:
    €2.6
  • Max Win Observed:
    €1,320
  • Bonus Frequency:
    21
  • Hit Rate:
    35.0%
  • Wins:
    3,549
More infoLess info

How to Play

Let us introduce a small how-to-play guide for the 777 Super Big BuildUp Deluxe:

  1. Find the title in the casino’s game zome
  2. Start the slot and wait until the end of content loading
  3. Press the coin button and set the bet size. The betting range is €0.15-€30
  4. Check the slot’s paytable and make adjustments in settings if you want to
  5. Start rolling. You can do it manually or automatically

777 Super Big BuildUp Deluxe has an unusual grid of 5 reels and 7 rows. It’s a multiway game (576 ways to win) that pays both ways. More importantly, the winning line can start from any reel and must include at least 3 matching symbols on adjacent cells. The game offers 3 cumulative prizes/enhancers. All of them are part of the Big BuildUp feature. There is also an FS round.

777 Super Big BuildUp Deluxe RTP and Volatility

7.9 
777 Super Big BuildUp Deluxe is a high-variance game with an RTP of 96.19%.
The high volatility of 777 Super Big BuildUp Deluxe is understandable, as the slot is quite unpredictable. You never know when the BuildUp feature will occur and which feature it will be. The same goes for volatile free spins. You can grow a massive board with sticky wilds during free games to get even more ways to win. The level of payback is about the industry’s average. We believe that winnings from features & FS cover more than 40% of the slot’s RTP.

Theme

8 

The theme of the slot is evident from its title. 777 Super Big BuildUp Deluxe is a classic game with symbols like BARs, 7, and fruits. It looks like your average land-based slot machine in Vegas with some disco vibes. You can see splashing, glowing and other light effects. And, of course, there is a dynamic electronic tune to make the gaming process more authentic. The game plays and feels very dynamic. A true modern classic.

There are 16 (!) symbols present in the slot. We have 11 regular elements, 2 special characters, and 3 BuildUp components. Let’s start with regulars. Here is the full list with odds:

  • Watermelon, orange, grapes, lemon: 0.2x, 0.33x, 0.47x
  • 3 different BAR symbols: 0.27x, 0.4x, 0.5x
  • Bell, gem, cherries, 7: 0.33x, 0.53x, 0.73x

Two special symbols are wild and scatter (bonus); the former substitutes regulars on winning lines, while the latter triggers FS (at least 3 scatters).
There is also an exclusive group of BuildUp symbols (non-payable). They have different values, which can be added to corresponding cumulative counters above the reels. Here is the list of BuildUp elements:

  • Star symbol. It adds from 1.33x to 10x to the Deluxe Prize sum
  • Golden Chip. Every landed chip increases the multiplier by 1
  • 777 chip. Each chip awards additional wild for the BuildUp feature
Theme
777 Super Big BuildUp Deluxe slot - payouts

Mobile Compatibility

Mobile Compatibility
Mobile players can enjoy 777 Super Big BuildUp Deluxe on their devices without limitations. It’s an HTML5 slot, fully compatible with small-screen gadgets on iOS and Android. The game provides players with an adaptive UI. You can easily navigate through the layout with a touchscreen. With simple tapping and scrolling, you can change the bet size and game settings or set the number of auto-spins. The mobile version of 777 Super Big BuildUp Deluxe supports all visuals and sounds.

About Crazy Tooth Studio

Crazy Tooth Studio (CTS) is a slot developer from the USA. The company has been around since 2011, producing its own games and helping other providers to develop content. The company became popular a few years ago after signing a partnership deal with Microgaming. Thanks to collaborating with an industry giant, CTS now has access to the biggest legal markets. The company’s portfolio is not that big (around 20 titles). But CTS has numerous co-produced games with other providers. The company’s most successful releases are 777 Mega Deluxe, Diamond Force, and Arctic Valor.

Bonus Rounds & Free Spins

8 

777 Super Big BuildUp Deluxe offers a Big BuilUp feature and Super Bonus. Let’s learn more details about each option.

Big BuildUp

During the base game, you can get 3 non-payable symbols. They will be cumulating until the activation of the feature. Here is the list of these symbols:

  • Star. It adds from 1.33x to 10x to the Deluxe Prize sum
  • Golden Chip. Every landed chip increases the BuildUp multiplier by 1. You can check the current multiplier on the column of golden chips above the 4th reel
  • 777 chip. Each chip awards additional wild for the BuildUp feature. You can check the number of wilds in the column above the 1st, 2nd, and 5th reel

The BuildUp feature triggers randomly. Once it’s activated, you’ll get chip features (wilds and multipliers) and or Deluxe Prize.
Take note that each wild increases the corresponding reel by 1 position. Multiplier applies for the Deluxe Prize only. If there is no Deluxe prize, then it will be used for winnings from the BuildUp spin.

Free Spins / Super Bonus

Catch 3, 4, or 5 Bonus symbols in a view to get 5, 7, or 9 free spins. During free games, new wild symbols will appear with each roll. Each wild adds a +1 position to the corresponding reel. Wilds are half-sticky, as they don’t disappear immediately after the spin but move down 1 position with each spin until they are out of the grid. Super Bonus is non-retriggerable.
777 Super BIG BuildUp Deluxe Slot - feature

777 Super Big BuildUp Deluxe Demo Play

If you are unsure if 777 Super Big BuildUp Deluxe is a good fit for you, try playing it for free. You can do it on our website, as we embed the slot’s demo version. It’s available for every visitor. At the start of the free play, we will award you a fun non-withdrawable deposit. It’s a virtual balance to test the slot and learn its features. Even if you lose your virtual money, you can restart the game to get a new deposit.

Max Win

7.9 
777 Super Big BuildUp Deluxe's maximum win is 15,000x.
The Deluxe part in the slot’s title doesn’t stand for anything, as you can hit a huge win here. The highest odds of 15,000x looks impressive, and even big-win hunters might consider playing the game. It’s hard to win big with the base spins, as symbols here are cheap. The magic can happen in the BuildUp feature or Super Bonus with multipliers and additional positions. Also, don’t forget about the huge Deluxe Prize, which can be multiplied too.

Overall Rating

8

Overall Rating

8

Overall Rating

8
777 Super Big BuildUp Deluxe is an excellent combination of a classic theme and modern mechanics. The slot is very entertaining with its cumulative BuildUP features that can be randomly triggered. The potential for big wins is also there. Maybe the game is a bit too loaded for conservative players, but we think the slot has a chance to be loved across different groups of gamblers.
Hits
Cumulative features (multiplier, wilds, and instant win)
Super bonus with wilds
It pays both ways
Misses
No bonus buy
High volatility is not for everyone

FAQ

Do the BuildUp counters reset if I change the bet size?

All collected chips and Deluxe Prize remain the same after changing the bet size.

How to enable a quick spin?

Click on the fast forward icon on the control panel on the left side of the interface.

Can a winning line start from the 2nd reel?

Winning lines in 777 Super Big BuildUp Deluxe can start from any reel, not only from far-right or far-left cells.

How to get a big win in the 777 Super Big BuildUp Deluxe slot?

The best way to get a big win is to trigger the BuildUp feature or free spins.

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Joe Booth
Joe Booth
Expert in: News, Blog, Slot reviews, Payments
Joe is an expert online casino player, who knows all the tricks and tips on how to get to the most massive wins. He is also an experienced online casino games reviewer, with hundreds of written articles behind him, on all kinds of online casino games. He makes sure to play them, see how they work, and then gives his honest expert opinion about them to other players, our readers. 

2732 articles

Reviewed by Editor-in-Chief
Nikita Lukanenoks

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Overall rating

Based on 2 reviews

9/10
Sloto Toto own avatar
Sloto Toto
6 lvl Superstar
9
Winning: €9
Multiplier: x57
Classic game but a modern gameplay. The slot with adjusted grid – its size can change if particular feature is activated.
The slot is very dynamic and flashy. And can be very generous. But can be cold too. The volatility is high and it’s important to catch a “positive” swing. The thing with features is that they become active totally random. It’s not like you need to collect something or get a particular combination/symbol.
I think it’s one of the coolest modern classic slots out there.
Review image 1257-0
01.08.2022
Primstan own avatar
Primstan
6 lvl Superstar
9
Winning: €35
Multiplier: x122
If you are willing to witness a slot with impressive top notch design followed by great atmosphere, full of action on top of that, this is a slot for you. Slot looks insane and the game mechanics are just superb. Amount of features is incredible you will probably need some time to understand it all. FS the main feature, that applies multiplier you grind and the amount of chips. In FS chips are dropped on to the reels, increasing the reels size and acting as wilds. Potential and RTP are sick
Review image 1217-0
29.07.2022
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