Space Miners (Relax Gaming) Slot Review

Space Miners: Slot Overview 

Set your sights on the stars and prepare to blast through asteroids in Space Miners, a volatile sci-fi-themed online slot developed by Relax Gaming and released on February 8, 2022. While asteroid mining may still be a concept confined to science fiction and Elon Musk’s whiteboard, Relax Gaming transforms this cosmic concept into a slot packed with dynamic gameplay, thrilling grid expansion, and explosive potential. 

With a unique 6-reel setup and a grid that can expand from 6×3 up to 6×10, Space Miners boasts up to 1,000,000 ways to win—a staggering figure even by modern slot standards. At its core is a fast-paced mechanic where players destroy blocker tiles, trigger respins, and uncover new ways to win as the board opens up. Complemented by colorful visuals, quirky alien designs, and a high volatility profile, Space Miners delivers both spectacle and substance. 

With a base RTP of 96.47% (or 97.14% via Bonus Buy), a hit frequency of 20.18%, and a potential max win of 50,000x your stake, this is one interstellar expedition that players won’t want to miss.

Design and Graphics 

Space Miners delivers a visual experience that’s both polished and playful. Set against a deep-space backdrop filled with rotating asteroids, distant galaxies, and glowing nebulae, the game’s atmosphere feels vast and otherworldly. The grid is framed by futuristic mining equipment and reinforced metal scaffolding, underscoring the theme of galactic resource extraction.The symbols are where the game shines with personality. Five high-value alien creatures dominate the reels, each with unique colors and googly-eyed expressions. They’re cute, oddly expressive, and give off a clear Reactoonz-inspired vibe. The lower-value symbols consist of crystalized minerals in different colors—vibrant and easily distinguishable. 

Animations are clean and satisfying. When wins occur, symbols pop and burst with energy, while the grid actively reshapes itself as blocker tiles explode. Every part of the aesthetic feels intentional and well-executed, offering players a visually cohesive universe to explore.

Gameplay Mechanics 

Space Miners introduces a grid expansion mechanic that forms the backbone of its gameplay. Each spin begins with a default 6×3 active panel, producing 729 ways to win. However, the grid is surrounded by blocker tiles that limit its size. Winning combinations trigger respins, during which adjacent blockers are destroyed, expanding the grid and increasing win potential. 

This continues as long as new wins occur, potentially opening the entire grid to reveal the game’s full 6×10 potential layout, activating the maximum 1,000,000 ways to win. The cascading structure keeps gameplay fluid and action-packed, with each win feeling like a step toward something greater. 

Wild symbols—represented by glowing crystal boxes—expand vertically to fill their entire reel and substitute for all regular symbols, greatly enhancing win potential.

Sound and Music 

The soundtrack of Space Miners enhances its interstellar tone with ambient space-age music, subtle pulses, and synth flourishes. During regular spins, the audio remains calm and curious, mirroring the quiet of space. However, when blocker tiles are destroyed or the grid expands rapidly, the sound intensifies with layered effects and tension-building music. 

Each alien character has its own quirky sound cues, adding light-hearted charm to wins. Bonus rounds are punctuated by electronic arpeggios and deeper basslines, emphasizing the game’s high-stakes nature. Overall, the audio perfectly complements the slot’s theme—never intrusive, but always atmospheric.

Bonus Features 

Blocker Destruction and Respins 

The core mechanic of Space Miners is the blocker tile destruction system. Here’s how it works:Every time a winning combination lands, a respin is awarded. 

Any blocker tile adjacent to the winning symbols is destroyed. 

This opens more space on the board, increasing the number of potential ways to win. 

Respins continue as long as wins occur. 

Once the streak ends, the grid resets to its base 6×3 size—unless you’re in the Free Spins mode. 

Power-Up Features 

Some blocker tiles contain power-up symbols that, when destroyed, trigger special effects to accelerate expansion: 

Cross: Destroys blockers in a horizontal and vertical line. 

Horizontal: Clears an entire row of blockers. 

Vertical: Clears an entire column. 

3×3: Wipes out a 3×3 cluster of blockers. 

These enhancements introduce strategic chaos, potentially opening large parts of the grid in one swoop. 

Free Spins 

Triggering Free Spins requires three or more bonus symbols in a single spin. Here’s what happens: 

3 bonus symbols = 6 Free Spins, plus +2 for each additional bonus. 

During Free Spins, any blockers destroyed remain removed for the rest of the feature. 

Additional bonus symbols during Free Spins add +1 spin each. 

This is where Space Miners can truly shine. With the grid staying expanded across multiple spins and symbols cascading more freely, the potential for consecutive hits and big multipliers increases dramatically. 

Bonus BuyWhere available, players can buy their way into the Free Spins round for 100x their bet. Doing so increases the RTP to 97.14%, making it one of the highest-paying bonus buys available in Relax Gaming’s catalog. 

This option is ideal for those who don’t want to grind through base spins but still want a shot at the slot’s high-win ceiling and grid-clearing carnage.

Betting Options and Payouts 

Space Miners is designed to be accessible to a wide range of players: 

Minimum Bet: €0.10 

Maximum Bet: €20 

Max Win: 50,000x the stake 

Volatility: High (5/5) 

RTP: 

Base Game: 96.47% 

Bonus Buy: 97.14% 

Hit Frequency: 20.18% 

Despite its modest bet cap, the massive 50,000x win potential puts Space Miners in elite territory. That said, reaching this cap will require substantial expansion of the grid, consistent symbol cascades, and likely a strong Free Spins streak.

Conclusion 

Space Miners is a masterclass in dynamic grid-based gameplay. While it borrows DNA from Relax Gaming’s other hits like Cluster Tumble and TNT Tumble, it refines these elements into a slot that feels fast, unpredictable, and immensely rewarding when the stars align. Its expanding grid, blocker-busting mechanics, and wild-packed bonus rounds make every spin feel like an incremental step toward something explosive. 

The visuals are endearing, the audio is immersive, and the 1,000,000 ways to win provide an exhilarating sense of scale. The ability to destroy blockers via power-ups and keep the expanded grid intact during free spins adds genuine strategic depth to the chaos. 

High volatility and an astronomical max win of 50,000x ensure that this is not a game for the faint of heart. But for those with patience—and a fondness for cascading reels and explosive mechanics—Space Miners offers a thrilling ride that’s every bit as rewarding as it is entertaining.