Gravity Bonanza

Gravity Bonanza is a space-themed cluster slot from Pragmatic Play, played on a fixed 7x7 grid. Groups of at least five connected symbols create wins, while the Black Hole feature removes and collects one randomly selected symbol type across the complete tumbling sequence.

In my view, the Black Hole gives Gravity Bonanza a stronger identity than its title suggests. This is not a conventional Bonanza slot with variable reels or pays-anywhere combinations. It is a high-volatility cluster game where the most interesting results depend on collecting a large number of one symbol before the tumbles end.

Gravity Bonanza Slot Details

The website displays the rounded RTP as 96.1%. The underlying standard-game figure is 96.09%, while the published Bonus Buy RTP is 95.99%. Lower operator configurations may also exist, so the percentage in the loaded game should be checked before playing.

Space Theme and Presentation

Gravity Bonanza takes place in deep space, with a 7x7 board surrounded by stars, planets and futuristic equipment. The paying symbols include moons, asteroids, planets and glowing cosmic objects.

The Black Hole is the main visual feature. When it lands, it selects a symbol type and pulls matching icons away from the grid. The removal creates new empty spaces, allowing more symbols to tumble into view.

The graphics are colourful and readable, although the large grid can become busy during extended sequences. The soundtrack uses electronic and cinematic effects, while the Black Hole animation makes the collection process easy to follow.

How Cluster Pays Work

A regular win requires at least five identical symbols to connect horizontally or vertically. Diagonal contact does not count.

The size of the cluster determines its value. Larger groups pay more, and the most valuable symbol can produce particularly strong awards when a substantial portion of the grid is connected.

More than one cluster can win on the same evaluated grid. Each qualifying group is paid before the relevant symbols are removed.

Unlike the pays-anywhere system used in Sweet Bonanza, matching symbols in Gravity Bonanza must be physically connected. Scattered copies on opposite sides of the board do not form a regular win.

Tumble Feature

After a cluster pays, all symbols involved disappear. The remaining icons fall towards the bottom of the grid, and new symbols enter from above.

The refreshed board is checked for another cluster. If a new win appears, another tumble begins without charging an additional stake.

This process continues until the updated board contains no further winning cluster. There is no fixed limit on the number of tumbles created by one paid spin.

Tumbles can create longer sequences, but they do not involve player decisions or strategy. Every replacement symbol is determined randomly.

Black Hole and Gravity Bonus

The Black Hole can land during the base game or free spins. Only one Black Hole can appear during a single paid spin and all tumbles connected to it.

When activated, it randomly selects one paying symbol type and collects every copy currently visible on the grid. If more of the selected symbol appear during subsequent tumbles, those copies are collected as well.

The collected icons are recorded in the Gravity Bonus indicator. Once the tumbling sequence finishes, the complete collection is evaluated as though it were one large cluster of the selected symbol.

Removing the chosen symbols can also create new gaps and additional tumbles. The Black Hole therefore provides two possible benefits:

• It accumulates selected symbols for a separate Gravity Bonus payout.
• It changes the grid and can help create new connected clusters.

The Black Hole does not guarantee a large prize. Its value depends on which symbol it selects and how many copies are collected before the sequence ends.

Regular Symbols

The paytable contains seven space-themed regular symbols. Different moons, planets and asteroids occupy separate value tiers.

The pale-blue crescent moon is the most valuable paying symbol. As with the other symbols, it starts paying when at least five copies connect horizontally or vertically.

Gravity Bonanza does not use a conventional Wild that substitutes for other symbols. The Black Hole is a collector and grid modifier rather than a standard Wild.

The UFO is the Bonus symbol. It can appear anywhere on the grid and triggers free spins when at least three copies land.

Free Spins Feature

The number of free spins depends on how many UFO Bonus symbols appear:

• Three Bonus symbols: 10 free spins.
• Four Bonus symbols: 15 free spins.
• Five Bonus symbols: 20 free spins.
• Six Bonus symbols: 30 free spins.
• Seven Bonus symbols: 50 free spins.

The same combinations can retrigger the feature. Landing three to seven Bonus symbols during free spins awards the corresponding number of additional spins.

The 50-spin starting award requires seven Bonus symbols on the same trigger and should not be treated as a typical outcome.

Black Hole Multipliers

During free spins, a Black Hole can carry a random multiplier of 2x, 3x, 5x or 10x.

The multiplier applies only to the Gravity Bonus created by that Black Hole. It does not multiply every regular cluster or the entire free-spins total.

For example, if the selected symbol collection produces a 20x Gravity Bonus and the Black Hole carries a 5x multiplier, that particular bonus is increased to 100x.

The multiplier does not increase after every tumble and does not persist between free spins. Each qualifying Black Hole receives its own randomly assigned value.

Bonus Buy

Where feature purchases are permitted, free spins can be bought for 100x the current stake.

The triggering spin randomly lands between three and seven Bonus symbols. The number of symbols determines whether the purchase begins with 10, 15, 20, 30 or 50 free spins.

The purchase does not guarantee a multiplied Black Hole or a return equal to its cost. The published RTP also decreases from 96.09% in standard play to 95.99% when Bonus Buy is used.

Gravity Bonanza does not include an Ante Bet mode. Bonus Buy is the only optional method of changing access to free spins.

RTP, Volatility and Maximum Win

The highest published standard RTP is 96.09%. Alternative operator versions may use lower settings, including configurations around 95.07% or 94.00%.

RTP represents a theoretical return calculated across a very large number of rounds. It does not predict how much one player will receive during a session.

Gravity Bonanza has Pragmatic Play’s high-volatility classification. The Black Hole can create large collections, but it can also select a low-value symbol or gather too few copies to produce a significant payout.

The maximum win is limited to 10,000x the stake. If a round reaches that amount, play ends immediately, the capped prize is awarded and any remaining free spins are forfeited.

Gravity Bonanza vs Sweet Bonanza

Gravity Bonanza offers a larger board and genuine cluster mechanics, while Sweet Bonanza counts matching symbols regardless of their positions. The Black Hole also works very differently from a standard multiplier bomb.

Players interested in another grid-based Bonanza release can compare it with Gems Bonanza. More games from the same studio are listed on the Pragmatic Play page.

Mobile Experience

The HTML5 version runs on desktop, mobile and tablet devices. The 7x7 grid fits portrait screens, although individual symbols are smaller than those in conventional 5x3 slots.

The interface provides access to the stake controls, paytable, game history and spin-speed settings. Autoplay, Turbo Spin and Bonus Buy may be restricted depending on local regulations.

Advantages and Drawbacks

What I Like

• The 7x7 grid supports large connected clusters.
• The Black Hole collects symbols across an entire tumbling sequence.
• Removing collected symbols can create additional tumbles.
• Free spins can begin with between 10 and 50 rounds.
• Black Hole multipliers reach 10x during the bonus.
• The maximum payout reaches 10,000x.

What Could Be Better

• The Black Hole selects its target symbol randomly.
• Its multiplier applies only to the Gravity Bonus.
• There is no persistent or increasing multiplier.
• The 7x7 grid can look crowded on smaller screens.
• Bonus Buy has a lower RTP than standard play.
• High volatility can produce uneven sessions.

My Gravity Bonanza Rating

4.4 out of 5

Final Verdict

Gravity Bonanza stands out through its Black Hole mechanic rather than its use of the Bonanza name. Collecting one symbol type across an entire tumble sequence creates a clear point of difference from ordinary cluster slots.

I consider the game strongest when the Black Hole removes enough symbols to create new clusters while also building a substantial Gravity Bonus. Its weakness is the amount of randomness involved: the selected symbol, collection size and free-spins multiplier are all outside the player’s control.

My rating for Gravity Bonanza is 4.4 out of 5. The cluster system and Black Hole are distinctive, but the high volatility and feature-specific multiplier mean the game will not suit players looking for steady or predictable payouts.

Gravity Bonanza should be treated as paid entertainment with a real possibility of losing the full amount staked. Similar releases are available in the Bonanza slots catalogue.

Gravity Bonanza In Comparison Table