Game Information
Provider
Macaw Gaming
Type
Slots
Restrictions
AU,BE,BR,CH,CZ,DE,EE,ES,FR,GB,IL,MT,NL,SE,UA,US
Rio 40 Graus Slot: Comprehensive Data Analysis
Core Game Specifications
| Attribute | Value |
|---|---|
| Developer | Macaw Gaming |
| Release Date | 2021-10-12 |
| Theme | Brazilian carnival, tropical culture |
| Layout | 5×3 |
| Paylines | 20 |
| Bet Range | 0.2–100 coins |
| Core Mechanics | Adjustable paylines, Wilds acting as scatters, Expanding symbols, Free spins, Multipliers, Bonus round |
| Technology | JS and HTML5 |
| Compatibility | Desktop and mobile |
Mathematical & Payout Model
Return to Player (RTP)
95.47%
Volatility
Varies By Version/operator
Max Win Potential
250x
Symbols & Paytable Hierarchy
| Tier | Symbol(s) | Function & Value |
|---|---|---|
| Low Tier | 10, J, Q, K, A | Provides small, frequent wins to maintain gameplay. |
| Mid Tier | maracas, instrument | Thematic items offering moderate payouts. |
| High Tier | mask, girl | Highest paying symbols. Top hits available with full combinations. |
| Wild | wild symbol | Acts as a substitute / feature trigger per game rules. |
| Scatter | wild symbol acting as scatter | Triggers free spins / bonus round when enough appear. |
Rio 40 Graus Bonus Features Mechanics
| Feature | Trigger | Initial Award | Core Mechanic | Enhancement/Retrigger |
|---|---|---|---|---|
| Free Spins | Landing three wild/scatter symbols | Awards free spins and may retrigger additional spins | Expanding symbols and multipliers during free spins | |
| Expanding Symbols | During base or free spins | Symbols expand to cover full reel to increase win potential | ||
| Bonus Round | Specific scatter/wild combinations | Activates a bonus game with enhanced payouts | Includes multipliers |
Frequently Asked Questions (FAQ)
| How many paylines does the game have? | The game has up to 20 adjustable paylines. |
| What is the RTP of the slot? | The RTP is 95.47%. |
| Can wild symbols trigger free spins? | Yes. Wild symbols act as scatters and trigger free spins when three appear. |
| Are there expanding symbols? | Yes. Expanding symbols appear during base game and free spins. |
| What is the maximum win multiplier? | The maximum win per line is 250x. |
| Can I play on mobile? | Yes. The game is built in HTML5 and is compatible with mobile devices. |
| Can I adjust the number of paylines? | Yes. You can adjust active paylines from 1 to 20. |
| Does the game include multipliers? | Yes. Multipliers are included in base game and bonus features. |
Rio 40 Graus Performance Summary: Strengths vs. Weaknesses
Strengths
- Vibrant carnival theme
- Adjustable paylines
- Engaging bonus features
Weaknesses
- Volatility varies by operator
- Hit frequency not disclosed
Overview
Rio 40 Graus is a vibrant video slot inspired by Rio de Janeiro culture. It features 5 reels, adjustable 20 paylines, wilds that act as scatters, expanding symbols, free spins, multipliers, and a bonus round. The game offers moderate risk and engaging mechanics.
Rachel Pine is our slots expert who has worked in the online gambling industry for 10+ years. Over the course of her career, Rachel has reviewed more than 30,000 slots.
Latest posts by Rachel Pine (see all)
- Free Slots vs Real Money Slots - October 3, 2025
- Top 6 Low Volatility Slots in the UK - September 30, 2025
- Best Online Casino Strategies That Actually Work - September 21, 2025