Chance Machine 40 Slot – 96.06% RTP, Rules & Features

Quick answer

Chance Machine 40 is a Endorphina slot with 96.06% RTP and medium–high volatility. It uses 40 paylines with wild symbols, gamble feature and expanding wilds. An official free demo is available. RTP can vary by casino.

Key specs

RTP: 96.06%
Volatility: Medium–high
Grid: 5×4
Pays: 40 paylines
Bet range: $0.40–$80

Not published by the provider: max win, jackpot

Top-rated casinos (check the game is available)

We haven't confirmed which partner carries this game.

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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.
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Key terms
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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.

What does an hour cost?

Themes:

Fruit & classic

Part of the Chance Machine series.

Free demo Members

Try Chance Machine 40 with play money before deciding whether to play for real. Official Endorphina demos are free for GambGenius members.

Member access — full guide unlocked

How to play Chance Machine 40 (members only)

Wins are paid when matching symbols land on an active payline, usually left to right starting from the leftmost reel. Your total stake is spread across the lines, and each line win is the line bet multiplied by the symbol's paytable value.

Chance Machine 40 is played on a 5×4 grid with 40 paylines.

Set your stake. Choose your total bet per spin between $0.40 and $80. 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.

The full Chance Machine 40 guide: how winnings work, 3 features and 3 strategy tips

Your stake plan: a $50 budget → about $0.20 a spin (medium–high volatility)
What 96.06% RTP costs per $100 wagered: $3.94 on average
3 features explained: wild symbols, gamble feature, expanding wilds
Stake plans for $20 to $250 budgets, checked against the $0.40 minimum bet
4 slots with the same style and a higher RTP (up to 98%)
Strategy tips and a session planner for Chance Machine 40

Free · no card · 18+ only

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How winnings work (members only)

What 96.06% RTP costs per $100 wagered

What 96.06% RTP means

Expected return = stake × 96.06%
Over $100 of total bets, the long-run average loss is $3.94

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)

3 features explained: wild symbols, gamble feature, expanding wilds

Wild symbols

Wilds substitute for regular paying symbols to help complete winning combinations. They do not normally replace scatter or bonus symbols.

Gamble feature

After a win you can risk it on a double-or-nothing guess, such as the colour of a card. It does not improve the game's long-term return.

Expanding wilds

When an expanding wild lands, it grows to cover its whole reel, turning one symbol into a full column of wilds.

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 96.06% RTP, clearing $1,000 of wagering costs about $39.40 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 $0.40 minimum bet

For medium–high volatility we suggest a budget of at least 250 spins. This is what that means for Chance Machine 40 (bets from $0.40 up to a maximum bet of $80).

Stake plans for Chance Machine 40
Budget	Stake a spin	Bet range	Average cost of 250 spins
$20	$0.08	Below the $0.40 minimum bet	$0.79
$50	$0.20	Below the $0.40 minimum bet	$1.97
$100	$0.40	Fits	$3.94
$250	$1	Fits	$9.85

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 98%)

Slots with the same mechanic (paylines) and volatility (medium–high) as Chance Machine 40, with a higher published RTP. Casinos can still run lower versions of any of them.

MOMonopoly on the Money98% RTP · +1.94 pts KSKing's Jewels98% RTP · +1.94 pts PHPlayboy Hot Zone97.8% RTP · +1.74 pts

Roo Riches97.66% RTP · +1.6 pts

Questions

Frequently asked questions

Who makes Chance Machine 40?

Chance Machine 40 is developed by Endorphina.

What is the RTP of Chance Machine 40?

The default RTP of Chance Machine 40 is 96.06%.

Is Chance Machine 40 high volatility?

Chance Machine 40 is rated medium–high volatility. Medium-to-high volatility means longer gaps between meaningful wins, with most of the return concentrated in features.

Can I play Chance Machine 40 for free?

Yes. GambGenius members can play the official Endorphina demo of Chance Machine 40 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 Chance Machine 40 have a bonus buy?

No bonus buy is listed for Chance Machine 40 in the sources we checked.