Quick answer
123 Boom! is a 4ThePlayer slot (2020) with 96.44% RTP, medium–high volatility and a 14,827x max win. It uses 1,024 ways with tumbling reels, wild symbols and free spins. An official free demo is available. RTP can vary by casino.
Key specs
- RTP
- 96.44%
- Volatility
- Medium–high
- Max win
- 14,827x
- Pays
- 1,024 ways
- Released
- 18 November 2020
- Jackpot
- None
Not published by the provider: grid, bet range
Top-rated casinos (check the game is available)
We haven't confirmed which partner carries this game.
- Aurivo Casino100% up to $1,000 + 200 Free Spins30x bonusGet 200 spins + 100% at Aurivo Casino (opens in new tab)
18+. New customers. Min dep $20. 30x bonus wagering. Max bet $5. 30 days. 200 spins on Book of Dead at $0.20. Credited in daily batches of 20 over 10 days. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $20. 30x bonus wagering requirement. Max bet $5 while wagering. Free spins on Book of Dead at $0.20 per spin. Spins credited in daily batches of 20 over 10 days. Offer valid 30 days. Full T&Cs apply. Please gamble responsibly.
- Velmora150 No-Wager Free Spins Keep every winNo wageringClaim 150 no-wager spins at Velmora (opens in new tab)
18+. New customers. Min dep $20. No wagering. 7 days. 150 spins on Big Bass Bonanza at $0.10. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $20. No wagering on winnings. Free spins on Big Bass Bonanza at $0.10 per spin. Offer valid 7 days. Full T&Cs apply. Please gamble responsibly.
- Kronos Royale200% up to $2,000 + 10% weekly cashback40x bonusGet 200% bonus at Kronos Royale (opens in new tab)
18+. New customers. Min dep $50. 40x bonus wagering. Max bet $10. 60 days. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $50. 40x bonus wagering requirement. Max bet $10 while wagering. Cashback: 10% of net casino losses each week (Monday to Sunday), paid as cash with no wagering every Monday, up to $500 a week. Offer valid 60 days. Full T&Cs apply. Please gamble responsibly.
Game availability varies by casino and country.
Themes:
Free demo Members
Try 123 Boom! with play money before deciding whether to play for real. Official 4ThePlayer demos are free for GambGenius members.
How to play 123 Boom! (members only)
Instead of fixed lines, matching symbols on adjacent reels pay in any position, starting from the leftmost reel. The more matching symbols there are on each reel, the more ways the combination pays.
123 Boom! pays with 1,024 ways.
- Set your stake. Choose your total bet per spin. Wins are paid as multiples of this stake.
- Check the paytable. Open the game's info screen to see what each symbol pays and the exact rules for this version.
- Spin. Each spin's result is decided by a certified random number generator, independent of previous spins.
- Trigger the bonus. Land the required scatter symbols to start the free spins feature.
The full 123 Boom! guide: how winnings work, 4 features and 3 strategy tips
- Your stake plan: a $50 budget → about $0.20 a spin (medium–high volatility)
- What 96.44% RTP costs per $100 wagered: $3.56 on average
- 4 features explained: tumbling reels, wild symbols, free spins, multipliers
- Stake plans for $20 to $250 budgets, checked against the $0.10 minimum bet
- 4 slots with the same style and a higher RTP (up to 97.15%)
- Strategy tips and a session planner for 123 Boom!
Free · no card · 18+ only
Never sold · export or delete any time · What do members get?
How winnings work (members only)
What 96.44% RTP costs per $100 wagered, the 14,827x max win at a $1 stake
The top prize is capped at 14,827x your stake. On a $1 spin that is $14,827; on $0.20 it is $2,965.40. When the cap is reached the round usually ends immediately.
Multipliers are applied to wins as they land; in many games several multipliers add together or multiply each other, which is where the largest wins come from.
Because winning symbols tumble away and are replaced, one paid spin can produce a chain of wins. All of them count towards that spin's total.
What 96.44% RTP means
Expected return = stake × 96.44%
Over $100 of total bets, the long-run average loss is $3.56
RTP is a long-run average across millions of spins. Any single session can finish far above or below it, especially on a medium–high volatility game.
Features explained (members only)
4 features explained: tumbling reels, wild symbols, free spins, multipliers
Tumbling reels
After a win, the winning symbols are removed and new ones fall into their place. This can create several consecutive wins from a single paid spin. Also called cascades or avalanches.
Wild symbols
Wilds substitute for regular paying symbols to help complete winning combinations. They do not normally replace scatter or bonus symbols.
Free spins
A bonus round of spins played at no cost to your balance, usually triggered by landing three or more scatter symbols. Wins during the round are added to your balance, and many games let you retrigger extra spins.
Multipliers
Multipliers increase a win by a set factor, such as 2x or 10x. They can be attached to symbols, applied to a whole spin, or grow during a feature, and are a main driver of the biggest wins.
Strategy tips (members only)
- Size your stake to the volatility. Medium-to-high volatility means longer gaps between meaningful wins, with most of the return concentrated in features. Use smaller stakes relative to your budget. A simple rule: bring at least 250 spins' worth of budget, so a $50 budget suggests a stake of about $0.20.
2 more tips and a session planner
- Bonus wagering: at 96.44% RTP, clearing $1,000 of wagering costs about $35.60 on average. Check the bonus terms, as some casinos exclude specific games. Run your numbers in the wagering calculator.
- Set limits before you spin. Decide your loss limit and session time in advance and stop when you reach either. No pattern or betting system changes the outcome of a spin.
More on this in slot RTP and volatility explained and bankroll management.
Does it fit your budget? (members only)
Stake plans for $20 to $250 budgets, checked against the $0.10 minimum bet
For medium–high volatility we suggest a budget of at least 250 spins. This is what that means for 123 Boom!.
| Budget | Stake a spin | Bet range | Average cost of 250 spins |
|---|---|---|---|
| $20 | $0.08 | Below the $0.10 minimum bet | $0.71 |
| $50 | $0.20 | Fits | $1.78 |
| $100 | $0.40 | Fits | $3.56 |
| $250 | $1 | Fits | $8.90 |
Averages only: a short session can end far above or below them. Set a loss limit before you play.
Same style, better RTP (members only)
4 slots with the same style and a higher RTP (up to 97.15%)
Slots with the same mechanic (ways to win) and volatility (medium–high) as 123 Boom!, with a higher published RTP. Casinos can still run lower versions of any of them.
Hot Shots97.15% RTP · +0.71 pts
Shaolin Spin97.15% RTP · +0.71 pts
Mystery Heist97.12% RTP · +0.68 pts
Golden Avalon Hold and Win97.1% RTP · +0.66 ptsQuestions
Frequently asked questions
Who makes 123 Boom!?
123 Boom! is developed by 4ThePlayer and was released in 2020.
What is the RTP of 123 Boom!?
The default RTP of 123 Boom! is 96.44%.
Is 123 Boom! high volatility?
123 Boom! is rated medium–high volatility. Medium-to-high volatility means longer gaps between meaningful wins, with most of the return concentrated in features.
What is the max win on 123 Boom!?
The maximum win on 123 Boom! is 14,827x your stake, which is $14,827 on a $1 spin.
Can I play 123 Boom! for free?
Yes. GambGenius members can play the official 4ThePlayer demo of 123 Boom! free on this page. It uses play money only, so demo wins can't be withdrawn, and it is for players aged 18 and over.
Does 123 Boom! have a bonus buy?
No bonus buy is listed for 123 Boom! in the sources we checked.
Where this data comes from
- 4theplayer.com Provider
Specs are as published by the provider. Casinos can run lower-RTP versions, so always check the game rules before you play.
Game artwork © 4ThePlayer, shown to identify the game.
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