Big Bang Boom Slot

Big Bang Boom Slot
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Published Date · Sept. 19, 2023 · Last Updated · Feb. 22, 2024
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Big Bang Boom Slot Review

Big Bang Boom Slot Overview

Big Bang Boom from industry leaders NetEnt is set on a 4x4 reel grid with avalanching reels. The reel grid is dynamic, which means it can expand when you land bomb symbols. The game has exciting extras, including a Free Spins Bonus, multipliers, re-spins, and more. The game also offers a max win amount of 4,300x your stake!

Big Bang Boom Slot Details











4,300 x

Software Provider




Design and Layout

4 Reel Slots


Bonus Round, Multiplier, Free Spins, Re-Spins

NetEnt’s Big Bang Boom slot machine is a refreshing addition, with a grid set up and avalanching reels. The concept of exploding blockers and increasing winning opportunities works well, and the bonus features bring excitement and wins in equal measure. The game has plenty to shout about but falls short in the max win amount, which is less than half the average slot game.


243 Paylines

Avalanching Reels

Amazing Graphics


No Wild Symbol

Variable RTPs

How To Play Big Bang Boom Slot

big bang boom base
Base game
big bang boom winning combination
Winning combination

Min Bet

Max Bet

Max Win (x stake)




Big Bang Boom Basic Rules

  • The slot is played on a 4x4 grid
  • There are 243 paylines on offer
  • Four or more matching symbols form a winning combination

Big Bang Boom Slot Paytable & Symbols

Here's a guide to all the symbols and payouts available in Big Bang Boom:

3 Symbols
4 Symbols
big bang boom j
big bang boom k
big bang boom q
big bang boom a
big bang boom smiley face
Smiley Face
big bang boom butterfly
big bang boom heart
big bang boom crown

Big Bang Boom Slot Features

Avalanching Reels

The game uses the Avalanching Reels mechanic, which means winning combinations are replaced with new symbols, allowing you to hit multiple payouts on the same bet. This will keep happening until you hit a losing spin.

Expanding Reels Feature

This feature expands the base game grid when different bombs explode on the blocker tiles. The grid keeps expanding if the bombs keep exploding, which can create an 8x10 grid, making it easier to land winning clusters of matching symbols.

Bomb Symbols

The game features seven different Bomb symbols, which work in various ways:

  • Vertical Bomb – Removes top and bottom adjacent symbols
  • Horizontal Bomb – Removes left and right adjacent symbols
  • Diagonal Bomb - Removes corner adjacent symbols
  • Plus-Pattern Bomb - Removes top, bottom, left, and right adjacent symbols
  • Omni-Directional Bomb - Removes all adjacent symbols in all directions
  • Cluster Bomb - Removes 3 to 5 random blocker tiles
  • Persistent Bomb (bonus round only) - Locks in place to remove all adjacent symbols for as long as the round lasts

Big Bang Boom Slot Bonus Features

big bang boom free spins unlocked
Free spins unlocked
big bang boom free spins bonus
Big Bang Boom Bonus

Big Bang Boom Bonus Feature

To trigger this bonus, you need to explore all blocker tiles. The reel grid will be 4x10 for the feature. You get six free spins, and all prize symbols will lock in place for the bonus round. All prizes hit by an explosion double in size, which means the prizes can hit up to 2,048x your bet.

Treasure Prize Feature

This bonus feature activates when you uncover a new position from a bomb explosion. This unlocks a larger cash prize worth up to 64x your bet or offers one extra free spin.

Bonus Buy

You can buy into the bonus round for 75x or 150x your stake, depending on if you want a guaranteed Persistent Bomb in the feature. However, the bonus buy option is not available to those based in the UK.

Our Verdict: Big Bang Boom has some awesome bonus rounds that offer explosive payouts. The features bring something new and exciting to the slot experience, and the rounds are as thrilling as they come. NetEnt has taken a different approach to the standard, which keeps the bonuses fresh and fun.

Play Big Bang Boom Demo for Free

Take the time to play the Big Bang Boom slot demo for free first before you start betting with real money at an online casino! Free play slot demos give players the chance to play for free before committing to staking real money. Use the demo as the perfect preparation for real-money gaming, giving you the best possible chance of making money when it comes time to play for real.

Big Bang Boom Slot RTP & Volatility


Variable RTP





Big Bang Boom has a return to player (RTP) rating of 96.07%. The industry standard for a slot machine is 96%, so it’s a touch above the expected. Moreover, the game has a high volatility rating, meaning wins are not as frequent as the payouts are larger.

Our Verdict: The game has a 3.93% house edge, which is around the average for a slot game. The high volatility offers bigger payouts across a longer spin time, but the avalanching wins make it worth it. The game also has adjustable RTP ranges, so check the RTP before placing a wager.

Big Bang Boom Slot Graphics & Audio


The game does not fit a regular theme but is set on a cool, urban backdrop with a visually appealing design. The game uses neon lights and graffiti to keep things interesting. The graphics are sharp and detailed, with some good animation to be appreciated when you hit wins, features, and exploding bombs.

big bang boom base spins
Base game spins
big bang boom free spins
Free spins in action
big bang boom epic wn
Epic Win


Big Bang Boom has a fast-paced soundtrack with futuristic vibes. The audio keeps up with the visuals, creating a high-tempo gaming experience. The option to turn off the soundtrack is also there.

Our Verdict: Big Bang Boom oozes cool with its design. It offers something new and exciting to the gaming catalogue. Although there is no storyline, the game's visual prowess is enough to carry it.

Big Bang Boom Slot on Mobile

Big Bang Boom has been constructed using mobile-friendly gaming technology. This means the slot machine is available to play on your smartphone and tablet devices. The game flawlessly fits the small screen while offering effortless touch control and an immersive view of the action. The game’s visuals and engaging gameplay do not compromise across devices.

Big Bang Boom

Big Bang Boom FAQs

Who made Big Bang Boom slot?

The slot was developed by NetEnt.

How much can I win playing Big Bang Boom slot?

The slot pays out up to 4,300x your stake.

What is the RTP for Big Bang Boom slot?


Are there free spins in Big Bang Boom slot?

Yes - the Big Bang Boom Bonus feature gives you six free spins.


Nosa Omoigui

Content Editor


Tim Williams

Head of Content

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