Gravity Bonanza Slot by Pragmatic Play

The 7x7 grid uses cluster pays and tumbles as its foundation - five or more matching symbols connected horizontally or vertically form a win, get removed, and new symbols cascade in from above. Tumbles keep going until no new clusters form, and all wins from one spin cycle stack together.

The Black Hole symbol is the headline mechanic. When one lands, it selects a random paying symbol type and starts absorbing every instance of that symbol currently visible on the grid. As tumbles continue and more of the chosen symbol appears, those get pulled in too. After the last tumble resolves, the Gravity Bonus pays the full cluster value for all collected symbols at once. Only one Black Hole can appear per spin cycle, so the collection runs across the entire tumble sequence.

Free spins start at 10 for three bonus symbols and scale up to 50 for seven. The Black Hole gets significantly stronger during the bonus - each one carries a random multiplier of 2x, 3x, 5x, or 10x that applies directly to the Gravity Bonus payout. Retriggers follow the same 3-7 bonus symbol pattern and can extend the round substantially.

The cat astronaut mascot and neon planet symbols give it a lighthearted sci-fi feel. The buy feature costs 100x and randomly drops 3 to 7 bonus symbols on the triggering spin.