Starburst Galaxy Slot Review
It is a sequel to the hugely popular NetEnt game known as Starburst Demo. This recently released follow-up comes with a massive maximum win of x25,000 and an impressive range of bonus features, making it possible to collect multiple wins in a single round. In addition, win multipliers of up to x75 are also available. Naturally, all of this gives players the chance to land big prizes from time to time. With this brief introduction, let’s begin exploring this slot in more detail.
General Characteristics
- N-In-A-Row wins (3+ vertical/horisontal symbols);
- 5-7 reels and 5-7 rows;
- Medium - High Volatility Slot;
- RTP: 96%, 94%, 88%;
- Bet amount: 0.2 EUR - 28 EUR;
- Maximum win multiplier: x25,000;
- Maximum win value: 700,000 EUR;
- 7 main symbols;
- Additional symbols: Wild, Scatter.
Starburst Galaxy Bonus Features
N-In-A-Row Wins
This slot has no fixed pay lines, since payouts are awarded for any set of matching paying symbols (3—7) placed strictly vertically or horizontally. Of course, the winning symbols must be adjacent.

Wild
The Wild substitutes for any paying symbol except Scatter. When a combination consists only of wilds (3, 4, 5, 6, or 7), this special symbol stands in for the most valuable symbol and pays accordingly. Each time a winning combination formed without Wild disappears, an extra Wild appears on the game grid.
Avalanche feature
This common mechanic causes all winning symbols to disappear after the corresponding prize is awarded to the player. Naturally, all empty positions are then filled with new symbols falling from above, making it possible to form multiple winning combinations in the same round, as the symbol cascade continues until no more prize combinations remain on the reels.
Feature Generator
Every winning combination charges the Feature Generator, activating the 5 available functions one after another, with each requiring 5 consecutive wins to be charged:
- The 'Destroy' function removes all symbols of randomly selected types.
- The 'Random Wilds' feature adds 3-9 Wilds to the screen.
- The 'Expanding Wilds' function turns any Wild into a stack of three vertically placed Wilds.
- The 'Line Transform' function fills a random row or reel with identical paying symbols of a randomly selected type.
- The 'Upgrade' feature transforms symbols of randomly selected types into higher-paying ones.

Features that are ready to trigger and charged during the current round begin activating one by one once winning combinations are exhausted, pausing whenever new prizes appear. Each time there are no more wins on the grid, the remaining accumulated features are activated. Any round ends when there are no wins on the screen and no Feature Generator functions left to activate.
Galaxy Star Feature
When the 5th Feature Generator function is activated, the Galaxy Star feature is triggered immediately. First, the playgrid expands to 7x7. Then, a 3x3 Wild appears on the playfield in a randomly selected position. After the resulting prizes are credited, all winning symbols disappear. Notably, 4-8 regular Wilds should appear among the new symbols. The remaining ready-to-start Feature Generator functions trigger when wins on the playfield finally run out.

Galaxy Meter
While the Galaxy Star feature is active, every win charges the special Galaxy meter, which needs 50 winning combinations to be fully charged. If this number of wins is reached during the current bonus game, the Galaxy Star feature is immediately triggered again.

Mega Star Feature
When 3 Scatters appear on the reels, the Mega Star feature begins. It is triggered after all current wins are credited but before the already charged Feature Generator functions are activated. First, the 2x2 Wild lands on the grid. After the resulting wins are credited, 2-5 regular Wilds hit the playfield. During the Mega Star feature, any win charges the Feature Generator functions. These trigger when wins run out. The current Mega Star bonus round ends when there are no more wins and activated Feature Generator functions.

Multiplier
Scatters can carry win multipliers (x2, x3, x5, x10, x25). The values of multiple multipliers are added together before the Mega Star feature is triggered. A winning multiplier applies to all wins obtained while this feature is active.

Elevate Feature
There are several Buy Bonus Options:
- ‘Bonus boost’ increases your chances of triggering the Galaxy Star feature (x3).
- ‘Mega Star’ activates the corresponding feature (x10).
- ‘Boosted Mega Star’ gives you at least 2 Scatters with multipliers during the purchased Mega Star mini-game (x50).
- ‘Galaxy Star’ triggers the matching feature (x100).
- ‘Galaxy Star Bonanza’ starts the Galaxy Star function with 5 Feature Generator functions already charged and a randomly selected multiplier from x2 to x75 (x500).
Our Experience Playing Starburst Galaxy
We also decided to play this game for real money, adding €200 to the balance. The stake per round was €1. It was the version of the game with an RTP of 96%.
The first hundred spins gave us 28 wins, from €0.25 to €78. In this session, we also hit two other large wins—€28.25 and €21.25. Overall, wins came often enough, with the longest stretch between prizes being only five spins. By the end of the 100th spin, our balance was exactly €273.5.
The second session, made up of the next hundred spins, produced only one fairly substantial win of €15. In total, we received 28 cash prizes (€0.25 - €15). This time, however, the longest break between wins reached 15 rounds. When this gaming session ended, our balance had dropped slightly to €242.25.
Fortunately, the final gaming period turned out to be the most profitable, delivering the biggest prize of all—€175.5. The total number of wins was 26. In the end, when our test of this slot was complete, we had €344.75. Not bad! That means we made exactly €144.75 on top of the initial deposit.
Here are all the statistics in one table:
|
Minimum Base Game win |
€0.25 |
|
Maximum Base Game win |
€175.5 |
|
The biggest Base Game wins (>x10) |
€175.5, 78, 28.25, 21.25, 15 |
|
Total number of Base Game wins |
80 (1 in 3.8 spins) |
|
Wins that are lower than the bet |
45 (1 in 1.8 winning spins) |
|
The lengthiest non-wins period |
15 spins |
|
Average income per spin |
€0.48 |
As you can see, wins are frequent, and many of them are large. This is made possible by several profitable game mechanics, such as connected winning ways instead of fixed pay lines and the Avalanche feature. In addition, many unique bonus features are used, mostly centered on adding extra Wilds to the playfield. All of this helps create multiple wins per round, especially since five Feature Generator functions are constantly charging thanks to the formation of winning combinations. This fairly complex but highly profitable gambling mechanic allows many cash prizes per spin, which can lead to very large wins.

Our Verdict
Honestly, this game looks like an excellent choice for enjoyable gambling entertainment. First of all, it is an extremely rewarding slot, thanks to the wide range of bonus features designed to increase your cash prize amounts. The huge x25,000 maximum win is strong proof of that. Another reason to try this slot machine is its impressive visuals and captivating animations. So, if you enjoy spectacular gambling experiences that can deliver a big payout, this game is definitely worth playing.
Unfortunately, there are also a few drawbacks. The most notable one is the customizable RTP, which ranges widely from 95% to 88%. Therefore, make sure you choose a casino offering the most generous version of this game. Also, there are no free spins, which many players enjoy. The last major downside we’ve noticed is the low maximum bet, which is only €28 here. We’re sure many high-rollers won’t be pleased with that. However, the rest of the game’s features make it worth your attention.
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