Gaming Realms · 2023 · Independent review
Slingo Money Train Review: Rules, RTP and the Money Train Bonus
Our score: 7.6/10
Quick verdict: a clever mash-up of bingo-style Slingo and the Money Train respin bonus. Ten spins, a 5x5 card and a ladder that leads to a proper Money Cart-style round. The RTP is a low 94.42% and extra spins cost extra, so it's a novelty rather than a replacement for the slots.
- RTP
- 94.42%94.47% with optimal extra spins
- Volatility
- HighBonus from 9+ Slingos or a wheel
- Max win
- 10,000xSlotCatalog also lists an absolute cap
- Min bet
- $0.20Max bet varies by casino
What's in this review
What is Slingo Money Train?
Slingo Money Train is a Slingo game made by Gaming Realms under license from Relax Gaming. The deal was announced in April 2022 and the game launched on Slingo.com in late May 2023, with a wider rollout in July.
Slingo mixes slots with bingo. Instead of paylines you get a 5x5 card of numbers and a single reel that spins below it. Match numbers to mark them off, complete lines ("Slingos") and climb a prize ladder. In this version, the top of the ladder leads to a respin bonus taken from Money Train 2.
At a glance
| Developer | Gaming Realms (licensed) |
|---|---|
| Release | Late May 2023 |
| Format | Slingo, 5x5 card |
| Slingo lines | 12 (rows, columns, diagonals) |
| Spins per round | 10, plus optional extra spins |
| RTP | 94.42% |
| Volatility | High |
| Max win | 10,000x the bet |
| Min bet | $0.20 |
Gaming Realms, Slingo.com, BigWinBoard and SlotCatalog. Bet limits vary by casino.
How a Slingo Money Train round works
Place a bet
Pick your stake from $0.20. Each round costs one bet and gives you 10 spins.
Spin the reel
Each spin shows 5 symbols. Numbers that match the column above are marked on your card.
Use the Wilds
A Wild lets you mark any number in its column. A Super Wild lets you mark any number on the card.
Collect Free Spins
A Free Spin symbol adds one extra spin to the round. There are no blockers in this game.Complete Slingos
Each full row, column or diagonal is a Slingo. The more you have, the higher you climb the ladder.
Buy extra spins (optional)
After the 10 spins, you can buy up to 8 more. Each is priced individually based on what's still in reach.
The Slingo ladder
Your Slingo count decides the prize. From 4 Slingos you reach the wheels, which can pay a cash prize or give you a shot at the bonus. At the top of the ladder, the Money Train Bonus is guaranteed.
We checked the ladder in the demo. 3 Slingos pay a small cash prize, 4 to 8 spin a wheel, and 9, 10 and 12 pay a cash prize plus the bonus. There's no separate rung for 11. At a $0.20 bet, the Bronze Wheel's 1x–15x range is $0.20 to $3; at $1, it's $1 to $15.
| Slingos | Reward |
|---|---|
| 3 | Small cash prize |
| 4–6 | Bronze Wheel: 1x–15x or a bonus entry |
| 7 | Silver Wheel: 4x–25x or a bonus entry |
| 8 | Gold Wheel: 8x–50x or a bonus entry |
| 9, 10, 12 | Cash prize plus the Money Train Bonus (bronze, silver and gold tiers) |
Rungs checked in the demo; wheel ranges from BigWinBoard. Cash prizes scale with your stake.
The Money Train Bonus
The respin round is a compact version of the Money Cart. For how the full bonus works, see Money Cart bonus explained.
Base Bonus
Comes in bronze, silver and gold and shows 1x to 200x the Feature Stake.Payer Payer
Reveals 1x to 10x and adds its value to every other visible symbol.Collector Collector
Reveals 1x to 10x, then collects every visible value into its own.Combo Collector-Payer
Reveals 1x to 200x, collects all other values, then pays its new total to every other symbol.Sniper Sniper
Reveals 1x to 10x and doubles 3 to 8 other Bonus symbols. It can hit the same one more than once.Revive Necromancer
Reveals 1x to 10x and brings back 2 to 7 used one-off specials: Collector, Payer, Collector-Payer or Sniper.Extra spin Reset Plus
Reveals 1x to 10x and raises the starting value of the respin counter by one.Persistent Persistent Payer
Adds its value to all other symbols on every respin. It doesn't pay itself.Persistent Persistent Sniper
Doubles 3 to 8 other Bonus symbols at the end of every respin.Persistent Persistent Collector
Collects all visible values on every respin. It doesn't collect its own value.Prize Full grid
Filling every position pays 500x, according to BigWinBoard: $100 at $0.20 or $500 at $1.
The bonus plays like Money Train 2: 3 respins that reset with every new symbol, persistent versions of the specials, and a 5x4 grid that grows to 7x4 when you fill a reel. The rules count every value in multiples of the Feature Stake: up to 10x for Payers, Collectors, Snipers, Necromancers, Reset Plus and the persistent symbols, and up to 200x for Bonus symbols and the Collector-Payer.
Slingo Money Train RTP, volatility and max win
The RTP is 94.42%, or 94.47% if you buy extra spins only when they're good value. Some casinos round it to 94.5% or 94%. In theory, $100 wagered returns about $94.42, or $18.88 per $20 at $0.20 bets.
That's below the default RTP of every numbered Money Train slot. It isn't the lowest in the family, though: Origins Dream Drop runs at 94%, and Money Train 5 has versions down to 86%.
Volatility is rated high. The bonus needs 9, 10 or 12 Slingos, or a bonus entry from one of the wheels.
Extra spins are the hidden cost of any Slingo game. The game shows the price of each extra spin before you buy, and that price depends on the card. Buying only at good prices is what lifts the RTP to 94.47%: about 5 cents more per $100 wagered.
The max win is 10,000x your bet: $2,000 at $0.20 and $10,000 at $1. SlotCatalog also lists an absolute cap of 250,000 in the casino's currency, so check your casino's terms.
Play the Slingo Money Train demo
The demo isn't embedded on this page. Open the game in free-play mode at a casino: it uses play money, and you can see how the extra-spin prices change with the card. More options on our free demos page.
Most rounds end on the lower rungs of the ladder, so a short demo may not reach the bonus. That says nothing about the next round.
Where to play Slingo Money Train
Check that the casino is licensed in your country before you sign up. Slingo games are often in a separate lobby section, and the RTP can show as 94.42%, 94.5% or 94%, so open the rules screen first. Our RTP versions guide explains why versions differ.
Not paid placements: we have no commercial partners. How we are funded. 18+.

Unibet
License Malta Gaming Authority, plus local licenses in markets such as the UK Money Train games Money Train 1 to 4 Operator Kindred Group (part of FDJ United) One of the largest regulated brands in Europe. The game lobby depends on your country.

Betsson
License Malta Gaming Authority, plus local licenses in several European and Latin American markets Money Train games Money Train 1 to 4, Origins Dream Drop Operator Betsson AB Lists the series under slots, bonus-buy games and jackpots, where buys are allowed.

LeoVegas
License Malta Gaming Authority and UK Gambling Commission, plus local licenses Money Train games Money Train, Money Train 2 Operator LeoVegas Group (MGM Resorts) Mobile-first casino. We found Money Train pages on its international and Canadian sites.
All casinos and how we check them: where to play Money Train.
Pros and cons
What we like
- A different format built around the Money Train respin bonus
- Short rounds: 10 spins on a 5x5 card
- Money Train 2-style respin bonus at the top of the ladder
- No blockers on the reel
What we don't
- 94.42% RTP, below the default of every numbered Money Train slot
- Extra spins add to the cost of a round
- Bet limits vary between sources and casinos
- Less build-up than the slots' base game and bonus
Similar games
These games use the same respin bonus or take the series into another format.
Money Train 2
The slot this bonus is based on: the same 7x4 respin round, with a base game of lines and a 50,000x cap.
Money Train
The 2019 original: a simpler Money Cart bonus, a 96.2% RTP and a 20,000x cap.
Money Cart series
Relax games that are only the bonus, with no paylines. Like Slingo, they skip the usual base game.
Money Plane
The other non-slot spin-off: an arcade flight with five volatility levels and a 97% RTP.
Money Train Origins Dream Drop
A classic 5x4 slot with a frequent bonus and a jackpot layer, at a similar 94% RTP.
Our verdict: is it worth playing?
Slingo Money Train: an occasional change of pace from the slots.
The Slingo card and ladder are a different route to the Money Train respin bonus. Rounds are short and the rules are easy to follow once you've seen the ladder.
It suits players who already like Slingo games. Skip it if RTP matters most to you, or if you'd rather not be offered extra spins at the end of each round. For the bonus itself, Money Train 2 has a higher RTP.
| Gameplay | 7.5/10 |
|---|---|
| Features | 8/10 |
| Win potential | 7/10 |
| Design and sound | 7.5/10 |
Frequently asked questions
Is Slingo Money Train worth playing?
Yes, as an occasional change from the slots, if you like Slingo. It's a weaker choice on RTP: 94.42% against 96.4% for Money Train 2, whose bonus it borrows.
Who makes Slingo Money Train?
It's made by Gaming Realms, the company behind Slingo, under a license from Relax Gaming.
What is the RTP of Slingo Money Train?
It's 94.42%, or 94.47% with optimal use of extra spins. Some casinos show 94.5% or 94%.
How do you trigger the bonus?
It's triggered by 9, 10 or 12 Slingos, or by a bonus entry on one of the wheels from 4 Slingos up.
What is the max win?
It's 10,000x your bet: $2,000 at $0.20 or $10,000 at $1.
Should I buy extra spins?
It's optional, and the price of each spin is shown before you buy. Buying only at good prices lifts the RTP from 94.42% to 94.47%, so the choice changes little in theory.
Can I play Slingo Money Train for free?
Yes. Many casinos let you open it in free-play mode with play money. Start from our casino list.
Does it work on mobile?
Yes. It's an HTML5 game that runs in mobile browsers, so you don't need a separate app. See our Money Train app guide.
How we checked the numbers
The Slingo ladder is the part we could check ourselves: we read the rungs on the in-game screen in the demo. Everything else comes from Gaming Realms, Slingo.com, BigWinBoard, SlotCatalog and GamblingZone.
Sources disagree on the release date (late May or July 2023), the RTP rounding and the maximum bet, which ranges from 5 to 100 in the casino's currency. The wheel ranges and the 500x full-grid prize are from BigWinBoard only. Drafts are prepared with AI from this fact base and checked by an editor. Read our editorial policy and review method.
Play responsibly
A Slingo Money Train round costs one bet, but up to 8 extra spins can be offered at the end. Decide before the round whether you'll buy any, and count them toward your budget. Stop when the budget is gone.
BeGambleAware (UK) · GamCare (UK) · Gambling Therapy (worldwide) · 1-800-MY-RESET (US). More on our responsible gambling page. 18+ only.