This is our own slot rating based on how popular the slot is, RTP (Return To Player) and Big Win potential.
Play the 123 Boom free demo slot—no download required! Try 4ThePlayer’s latest game, enjoy risk-free gameplay, explore features, and learn game strategies while playing responsibly. Read our expert 123 Boom slot review with ratings for key insights before you play.
Released:November 18 2020
Responsible Gaming
You have to be 18 years or older to play our demo games. Please confirm that you are of the legal age to proceed:
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123 Boom is a video slot experience created by the provider 4ThePlayer. In this 123 Boom slot review you’ll learn about its core features (including RTP, max win, and volatility), the bonus mechanics, and what helps the game stand out — along with the areas where it may fall short.
123 Boom is played on a 5 reel layout with up to 1024 paylines/ways. The game includes a variety of features such as Cascading Reels, Increasing Multiplier, Slot Slider, Trailing Wilds, Walking Wilds, , and more. There’s also a dedicated free spins bonus round, which is typically where the game’s biggest win potential comes into play.
The standard RTP (Return to Player) for 123 Boom slot is 96.4% (Could be lower on some sites). This payback is good and considered to be about average for an online slot. Theoretically, this means that for every €100 put into the game, the expected payout would be €96.4. However, the RTP is calculated on millions of spins, which means that the output for each spin is always random.
The highest possible payout for this slot is 14827x your total bet which is very high and gives you the chance to win really big wins. The maximum possible win is also calculated over a huge amount of spins, often one billion spins.
123 Boom was released on November 18 2020.
This is our own slot rating based on how popular the slot is, RTP (Return To Player) and Big Win potential.
Yes! You can enjoy 123 Boom in demo mode without signing up. Try our free version above to explore the features. For real money play, visit one of our recommended 4ThePlayer casinos.
To play for real money:
Yes. 123 Boom is powered by 4ThePlayer, a licensed provider that uses certified RNG (Random Number Generator) technology to ensure fair and unpredictable outcomes.
The slot offers a big max win of 14827x your stake.
Example: A €1 bet could return up to a solid €14827.
Yes! Most of our featured 4ThePlayer casinos on this page offer welcome packages that include free spins or bonus cash usable on 123 Boom. Always check the terms before claiming.
Absolutely. The game is fully optimized for mobile devices, including iOS and Android.
Yes, many crypto‑friendly casinos offer 123 Boom as long as they support games from 4ThePlayer. You can usually play using popular cryptocurrencies like Bitcoin, Ethereum, or Litecoin. If you prefer crypto gaming, check out our list of trusted Bitcoin casinos to find platforms that accept digital currencies and feature 4ThePlayer slots.
Yes, the demo mirrors the full version in gameplay, features, and visuals—just without real money payouts.
