Magnum Opus Slot – 96.01% RTP, Rules & Features

Quick answer

Magnum Opus is a Endorphina slot (2021) with 96.01% RTP and medium volatility. It uses 5 paylines with gamble feature and multipliers. An official free demo is available. RTP can vary by casino.

Key specs

RTP: 96.01%
Volatility: Medium
Grid: 3×3
Pays: 5 paylines
Released: 2021
Bet range: $0.05–$200

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
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Game availability varies by casino and country.

What does an hour cost?

Themes:

Fantasy & magic

Free demo Members

Try Magnum Opus 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 Magnum Opus (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.

Magnum Opus is played on a 3×3 grid with 5 paylines.

Set your stake. Choose your total bet per spin between $0.05 and $200. 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 Magnum Opus guide: how winnings work, 2 features and 3 strategy tips

Your stake plan: a $50 budget → about $0.25 a spin (medium volatility)
What 96.01% RTP costs per $100 wagered: $3.99 on average
2 features explained: gamble feature, multipliers
Stake plans for $20 to $250 budgets, checked against the $0.05 minimum bet
4 slots with the same style and a higher RTP (up to 99%)
Strategy tips and a session planner for Magnum Opus

Free · no card · 18+ only

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How winnings work (members only)

What 96.01% RTP costs per $100 wagered

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.

What 96.01% RTP means

Expected return = stake × 96.01%
Over $100 of total bets, the long-run average loss is $3.99

RTP is a long-run average across millions of spins. Any single session can finish far above or below it, especially on a medium volatility game.

Features explained (members only)

2 features explained: gamble feature, multipliers

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.

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 volatility balances hit rate and win size. Expect dry spells between features, but not extreme swings. A simple rule: bring at least 200 spins' worth of budget, so a $50 budget suggests a stake of about $0.25.

2 more tips and a session planner

Bonus wagering: at 96.01% RTP, clearing $1,000 of wagering costs about $39.90 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 $0.05 minimum bet

For medium volatility we suggest a budget of at least 200 spins. This is what that means for Magnum Opus (bets from $0.05 up to a maximum bet of $200).

Stake plans for Magnum Opus
Budget	Stake a spin	Bet range	Average cost of 200 spins
$20	$0.10	Fits	$0.80
$50	$0.25	Fits	$1.99
$100	$0.50	Fits	$3.99
$250	$1.25	Fits	$9.97

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 99%)

Slots with the same mechanic (paylines) and volatility (medium) as Magnum Opus, with a higher published RTP. Casinos can still run lower versions of any of them.

MBMonopoly Big Event99% RTP · +2.99 pts NSNemo's Voyage99% RTP · +2.99 pts UBUgga Bugga99% RTP · +2.99 pts TRTropic Reels98.95% RTP · +2.94 pts

Questions

Frequently asked questions

Who makes Magnum Opus?

Magnum Opus is developed by Endorphina and was released in 2021.

What is the RTP of Magnum Opus?

The default RTP of Magnum Opus is 96.01%.

Is Magnum Opus high volatility?

Magnum Opus is rated medium volatility. Medium volatility balances hit rate and win size.

Can I play Magnum Opus for free?

Yes. GambGenius members can play the official Endorphina demo of Magnum Opus 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 Magnum Opus have a bonus buy?

No bonus buy is listed for Magnum Opus in the sources we checked.