Clusteroids Slot by Genii

Wilds explode here. When one lands on the grid, it doesn't just substitute - it detonates and wipes out every symbol touching it. A center-position Wild removes eight surrounding symbols at once. Corner placement takes out three. The destroyed positions then refill through the cascade, and that fresh drop often creates clusters that weren't possible a second earlier. One well-placed detonation can turn a dead board into a chain.

Clusters need five or more identical symbols touching horizontally or vertically across the 6x6 grid. Eight alien species fill it - cartoon creatures floating through a purple-blue nebula, with a one-eyed orange alien paying highest and a purple octopus thing sitting at the bottom. A UFO parked beside the grid tracks the cascade multiplier, which ticks up by 1x after each consecutive removal. That multiplier resets once the chain stops, so the longer a cascade runs, the harder each step hits.

Two separate scatter types feed two different bonuses, which is unusual for a cluster slot. One set triggers Free Falls - 8, 12, or 16 drops depending on whether you land 4, 5, or 6 scatters. The cascade multiplier carries through the entire bonus without resetting between spins, so even a modest chain late in the round builds on top of everything that came before. No retrigger, though, and the second bonus stays locked out during Free Falls.

That second bonus is Asteroid Shoot, a pick-and-click round. Four scatters let you pick 4 hidden prizes out of 6, five scatters give 5 picks, six gives all 6. Prizes scale to your bet. It's simpler than Free Falls, but some spins you just want a straight payout without sitting through a full bonus sequence. There's also a card-flip gamble after any win if you feel like doubling up or walking away with nothing.