Play 123 BOOM! Online

123 BOOM! is a 4ThePlayer pirate slot distributed by Relax Gaming and released on 18 November 2020. The game is built around the studio’s Slot Slider mechanic, which lets the reels travel in two different directions and pays accordingly. 123 BOOM! arranges its symbols across a 5x4 grid that produces 1,024 ways to win, with cannonball wilds and chains of exploding symbols replacing the fixed paylines of a conventional release.

123 BOOM! Game Overview

123 BOOM! presents a five-column, four-row playing area on which a win is formed by matching symbols occupying one position in each consecutive column. The cannon theme is carried into the mechanics rather than the artwork alone, as symbol groups detonate once they have paid. 123 BOOM! then allows replacement symbols to enter the vacated positions and continue the same paid round.

123 BOOM! separates itself from most video slots through the direction of travel. The Slot Slider system allows the grid to move horizontally or vertically, and the paying direction changes with it. The bonus round adds a multiplier that climbs with each explosion, together with a sliding wild that is reloaded at the start of every free game.

123 BOOM! Key Game Details

123 BOOM! has the following principal specifications:

• Developer: 4ThePlayer

• Distribution: Relax Gaming

• Release date: 18 November 2020

• Game category: Video slot

• Theme: Pirates and cannons

• Playing area: 5x4 grid

• Winning system: Ways to win, one position per consecutive column

• Ways to win: 1,024

• Proprietary mechanic: Slot Slider, with Slide Spin and Top Spin modes

• Main features: Explosive Wins, Cannonball Wilds and the Cannon Bonus

• Bonus trigger: 3 or more cannon scatters collected during an Explosive Wins sequence

• Bonus multiplier: starts at x2 and rises by +1 with every explosive win

• Published multiplier ceiling: x99

• Maximum explosive wins in one bonus round: 107

• Maximum win potential: 14,827x stake

• Default RTP: 96.44%

• Volatility: High

• Bet range: 0.10 to 50

• Supported formats: Desktop and mobile

123 BOOM! is listed by Wildz with a default RTP of 96.44%, a high volatility rating and maximum win potential of 14,827 times the stake. The exact mathematical configuration can vary by market and by operator, so the information panel inside the version being played remains the relevant source for its current RTP and betting conditions.

How Does 123 BOOM! Work?

123 BOOM! awards a win when identical symbols land on one position in each successive column of the grid. Five columns of four positions give 1,024 ways to win, so a combination is assessed by column rather than along a drawn payline. The paying direction depends on which of the two Slot Slider modes is active before the round begins.

123 BOOM! removes a paid group from the grid and lets new symbols fill the gaps, which can produce a further win from the same stake. This chain continues for as long as each fresh arrangement keeps forming a qualifying combination. The round closes once a new arrangement produces nothing further, and each replacement remains a random outcome rather than a guaranteed continuation.

123 BOOM! Slot Slider Mechanic

123 BOOM! uses the Slot Slider mechanic to change the axis on which the grid moves. The player selects the mode before staking, and the choice governs both the direction the symbols travel and the direction in which combinations are read. This is a presentational and structural control rather than a route to a better return.

123 BOOM! keeps the mathematical model identical across the two modes. Selecting one direction over the other does not alter the theoretical return, the volatility or the probability of the bonus, and no sequence of mode changes can influence which symbols the game generates next.

123 BOOM! Slide Spin and Top Spin

123 BOOM! moves the grid horizontally in Slide Spin, with symbols entering from the right and combinations paying from left to right. Top Spin turns the same grid through ninety degrees of logic: symbols descend from the top of the screen and combinations pay from the bottom upwards. Both modes retain the 5x4 playing area and all 1,024 ways to win.

123 BOOM! presents the two modes as a matter of preference. The abilities are part of the game’s programmed feature set, so a player who prefers reading wins upwards gains a different view of the same round rather than an advantage within it.

123 BOOM! Explosive Wins

123 BOOM! detonates a winning group once its value has been calculated, clearing those positions so that further symbols can slide in. Each new arrangement is evaluated in turn, and a single stake can therefore produce a run of separate wins. 4ThePlayer publishes a ceiling of 107 explosive wins within one bonus round, and as many as 50 on a single spin during the feature.

123 BOOM! charges no additional wager for any continuation inside an active chain. The length of a chain is decided entirely by the symbols the game supplies, so it cannot be guaranteed by a particular betting pattern and a long run in one round has no bearing on the next.

123 BOOM! Cannonball Wilds

123 BOOM! fires a Cannonball Wild into the playing area, where it travels through the grid and destroys the symbols it passes until it settles in a position that creates a win. The wild therefore behaves as a moving element rather than a static substitute, and it reshapes the board on its way through. Each bonus spin begins with a fresh cannonball loaded into the cannon.

123 BOOM! determines the cannonball’s entry point and path within its random game system. Players cannot aim the shot, hold it for a later round or influence how many symbols it removes before coming to rest.

123 BOOM! Free Spins

123 BOOM! opens the Cannon Bonus when 3 or more cannon scatters are collected during an Explosive Wins sequence. The round then runs until every cannon that was collected has been fired, so the number of free games follows the number of scatters gathered rather than a single fixed award. Further scatters landing inside the feature add to the cannons still to be fired.

123 BOOM! attaches a rising multiplier to the round. It begins at x2 and increases by +1 with every explosive win, and 4ThePlayer publishes a ceiling of x99 for it. A higher multiplier raises the value of qualifying combinations while it lasts, though reaching the upper figure depends on a long chain of random results that no stake or timing decision can bring about.

123 BOOM! RTP

123 BOOM! carries a default theoretical RTP of 96.44% in the version listed by Wildz. That figure describes the game’s calculated long-term return across a very large volume of wagering, not the expected outcome of a single session or a single bonus round.

123 BOOM! may appear with another permitted RTP setting when supplied through a different operator or market. Checking the game information menu before wagering therefore gives the most accurate percentage for the specific version in use.

123 BOOM! Volatility

123 BOOM! has a high-volatility profile as rated on the Wildz platform. Its structure can produce considerable variation between rounds, so stretches without a meaningful return can sit alongside occasional long explosive chains.

123 BOOM! volatility describes how potential payouts are distributed rather than predicting when they will arrive. A sequence of unsuccessful rounds does not increase the probability that a large result must follow.

123 BOOM! Maximum Win

123 BOOM! offers maximum win potential of up to 14,827x the total stake in its standard listed configuration. A qualifying £1 stake would therefore correspond to a theoretical upper limit of £14,827 before any separate operator restrictions were considered. Reaching it requires the Cannon Bonus, a long chain of explosive wins and a multiplier climbing far up its scale in the same round.

123 BOOM! should be understood as offering that figure as a technical ceiling rather than a representative return. The combination of events needed to approach it is exceptional, and no betting pattern makes it more likely to occur.

How to Play 123 BOOM! in the United Kingdom

123 BOOM! can be played in the United Kingdom through an online casino that holds the necessary Gambling Commission permission and carries the 4ThePlayer title. After account registration and age verification, a player can open the game, read its rules, choose a Slot Slider mode, set a permitted stake between 0.10 and 50 and begin a round.

123 BOOM! stakes are also governed by the United Kingdom’s statutory online slot limits. Players aged 18 to 24 can stake no more than £2 per game cycle, while customers aged 25 and over have a £5 maximum. These limits have applied since 21 May 2025 and 9 April 2025 respectively, and they cap the stake regardless of the range the game itself offers.

Can You Play 123 BOOM! on Mobile?

Yes, 123 BOOM! can be played on compatible mobile phones and tablets. 4ThePlayer supplies desktop and mobile builds of the slot, so the 5x4 grid, both Slot Slider modes and the Cannon Bonus all operate on smaller displays without a separate download.

123 BOOM! mobile access generally runs through a compatible casino website in a supported browser. The same age-verification, licensing and stake-limit requirements continue to apply when the game is opened on a smartphone rather than a desktop computer.

Can You Play 123 BOOM! for Free?

Yes, 123 BOOM! has a free demo version that runs on virtual credits instead of real-money stakes. The demo carries the full 1,024 ways to win, both spin directions and the Cannon Bonus, which makes it a way to see how the explosive chains behave before any money is staked.

123 BOOM! free-play access at a British licensed operator remains subject to United Kingdom age-protection requirements. Gambling Commission rules require remote licensees to verify age before a customer is given access to free-to-play versions of gambling games offered through their websites.

123 BOOM! in the United Kingdom

123 BOOM! can be offered to players in the United Kingdom by online casinos that hold the appropriate Gambling Commission licence and carry the 4ThePlayer game. British customers must be at least 18 years old, complete the required verification procedures and remain within the statutory online slot stake limits.

123 BOOM! is listed on Wildz internationally, but Wildz states that customers visiting from the United Kingdom are redirected to partner casinos. UK players should therefore use the Gambling Commission public register to confirm that the casino they ultimately use is authorised for the British market, rather than assuming that the international Wildz platform itself accepts UK registrations.

United Kingdom Rules for 123 BOOM!

123 BOOM! real-money gameplay in the United Kingdom falls within the regulatory system supervised by the Gambling Commission. Operators serving customers in England, Scotland and Wales must hold the appropriate regulatory permission, and the Commission maintains a public register where a player can check a gambling business before depositing money.

123 BOOM! players must be 18 or older to gamble online in the United Kingdom. Licensed businesses are required to verify customer identity and age before allowing play, with the minimum verification information including name, address and date of birth.

123 BOOM! players should also distinguish Great Britain from the United Kingdom as a whole when interpreting Gambling Commission rules. The Commission regulates gambling in England, Scotland and Wales, while Northern Ireland operates under a separate legal framework and is not governed by the Gambling Act 2005 in the same way.

FAQs

How does 123 BOOM! work?

123 BOOM! pays when matching symbols occupy one position in each consecutive column of its 5x4 grid, which gives 1,024 ways to win. Paid symbols explode, replacements slide into the cleared positions, and the round keeps going for as long as each new arrangement forms another winning combination.

What is the RTP of 123 BOOM!?

123 BOOM! is listed by Wildz with a default theoretical RTP of 96.44% and a high volatility rating. That percentage describes the game's calculated long-term return across a very large number of rounds rather than the expected result of one session. The in-game information panel confirms the figure for the version in use.

Can you play 123 BOOM! on mobile?

Yes. 123 BOOM! runs on compatible phones and tablets through a supported browser, with no download required. 4ThePlayer supplies a mobile build alongside the desktop one, so the 5x4 grid, both Slot Slider modes, the cannonball wilds and the Cannon Bonus all operate on a smaller screen.

Can you play 123 BOOM! for free?

Yes. 123 BOOM! has a free demo that runs on virtual credits instead of real stakes, carrying all 1,024 ways to win, both spin directions and the Cannon Bonus. Gambling Commission rules require a licensed operator to verify age before giving access to free-to-play gambling games.