Rio 40 Graus Demo & Review 2026 – RTP, Features & Latest Wins!

Rio 40 Graus has been catching plenty of attention, so we put it through its paces to see how it really holds up. This is a Macaw Gaming game, sitting firmly in the a very high volatility profile bracket and paying back 95.21% RTP. It's built with crisp artwork and atmosphere and plays out on a 5-reel grid running 40 paylines. It first went live in 2019 and still earns its place today. The maximum win sits at 5,000x, so there's serious upside on the table. Let's break down what works and what doesn't.

Written by Daniel Chen · Last updated: February 2026

Rio 40 Graus Review – Game Overview

Rio 40 Graus comes to us from Macaw Gaming, built with crisp artwork and atmosphere and powered by 40 paylines across 5 reels. The result is very high variance paired with 95.21% RTP.

The mechanics are what make Rio 40 Graus interesting. Look out for scatter symbols that unlock free spins and extra bonus rounds. With very high variance, this one is aimed at players who can ride out the swings for the top wins. All told, it's a solid entry in the Macaw Gaming catalogue.

Pros

Scatter symbols trigger free spins and bonus rounds
Impressive max win of 5,000x
Available to play for free in demo mode
HTML5 technology for smooth gameplay

Cons

Below-average RTP at 95.21%
High volatility may not suit casual players
Limited bonus features
No bonus buy option available

Rio 40 Graus RTP & Volatility

Return to Player (RTP)

95.21%

At 95.21%, the RTP is slightly below the industry average of ~96%. While this is typical for many popular slots, players should be aware of the slightly lower theoretical return.

Volatility

Very High

Very high volatility delivers the most extreme payout profile — long dry spells punctuated by potentially massive wins. Only recommended for experienced players with substantial bankrolls and high risk tolerance.

Maximum Win

5,000x

Hit Frequency

~30%

About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.

Rio 40 Graus Features & Bonus Mechanics

Scatter & Free Spins

Rio 40 Graus features scatter symbols that can trigger free spins rounds. Landing the required number of scatter symbols anywhere on the reels activates the free spins feature, giving you extra chances to win without additional bets. During free spins, special modifiers may apply to boost your winning potential.

Final Verdict

3.0 / 5 — Good

Rio 40 Graus by Macaw Gaming is a solid offering that delivers good entertainment value. The 95.21% RTP combined with very high volatility creates a well-balanced gaming experience.

Rio 40 Graus – Frequently Asked Questions

What is the RTP of Rio 40 Graus?: The RTP of Rio 40 Graus is 95.21%, which is slightly below the industry average of ~96%. RTP stands for Return to Player and represents the theoretical percentage of wagered money that is paid back to players over time.
What is the volatility of Rio 40 Graus?: Rio 40 Graus has very high volatility. Very high volatility delivers the most extreme payout profile — long dry spells punctuated by potentially massive wins. Only recommended for experienced players with substantial bankrolls and high risk tolerance.
Can I play Rio 40 Graus for free?: Yes! You can play the Rio 40 Graus demo here on GamesReviews with no registration or deposit required. The demo version plays identically to the real money version with the same RTP, bonus features, and mechanics.
What is the maximum win in Rio 40 Graus?: The maximum win in Rio 40 Graus is 5,000x your total stake. This is an impressive max win that can be achieved through the game's bonus features and special mechanics.
Is Rio 40 Graus available on mobile?: Yes, Rio 40 Graus has been fully optimised for mobile devices using HTML5 technology. It runs smoothly on all modern iOS and Android devices, with responsive touch controls and auto-scaling to fit any screen size.
Where can I see the Rio 40 Graus paytable?: You can view the full Rio 40 Graus paytable by clicking the info or menu icon within the game. The paytable shows all symbol values, winning combinations, special symbol functions, and bonus round rules at your current bet level. We recommend reviewing the paytable before playing to understand the payout structure.
Can I play Rio 40 Graus for free without registering?: Yes. Rio 40 Graus free play is available right here on GamesReviews with no registration, no download, and no deposit required. Simply load the demo above and play with virtual credits to experience all the game's features risk-free.