Space Miners

Space Miners by Relaxgaming is a video slot with a sci-fi mining theme, featuring Martian miners hopping from planet to planet in search of hidden crystal riches. The game begins with a 6×3 grid offering 729 ways to win, but through gameplay mechanics this can expand up to 6×10 rows, increasing win ways to a maximum of 1,000,000. A key feature is the blocker removal system: certain spaces on the grid are blocked and must be cleared by landing winning combinations adjacent to them. Some blocker tiles conceal power-ups of four types—Cross, Horizontal, Vertical, and 3×3—which are activated when their containing block is destroyed and can work together to open more positions. Wild symbols appear as crystal carts and when they land they expand to fill all unblocked positions on their reel. The game offers a free spins mode triggered by landing three Bonus (scatter) symbols, granting six free spins; additional Bonus symbols in the base game can award extra spins, while scatters during free spins give further free spins. In free spins, any cleared blockers stay removed for the duration, so grid expansion persists throughout the feature. Space Miners also includes a Bonus Buy option (when available) allowing the free spins feature to be accessed directly for a cost equivalent to 100× the normal bet. The top payout potential in Space Miners is up to 50,000× the stake.

You can play it for real money.