The data provided here regarding the UK stake limit, max win, and RTP for the Starburst Galaxy slot is sourced from the Gambling Commission and NetEnt's official game page. This is important since many review sites often list a maximum win that the provider doesn't. According to NetEnt's data, the figure is 17,288× your bet.
The fundamental details that most sites agree upon are accurate. It's a space-themed sequel to Starburst from NetEnt, featuring a 5×5 grid that can expand, a 96% RTP, and a set of features based on Wilds.
The official numbers
NetEnt's page shows:
- Release date: 26 November 2024
- RTP: 96.00%
- Hit frequency: 24.00%
- Maximum payout: 17,288× bet
- Layout: 5×5, expanding to 7×7
- Feature buy: yes
17,288× or 25,000×
Several review pages claim the limit is 25,000×. The provider's page states 17,288×. The provider determines the game's maths, so that number is the one to use. No source provided here clarifies the origin of 25,000×. Consider it a mistake.
Volatility
NetEnt's page includes a volatility field, though it is left blank. The "medium-high" description found in some reviews is based on those sites' own assessments, not NetEnt's.
Demo and stakes
A demo using coins is available on NetEnt's page. The listed bet range, from €0.20 to €20.00, is shown in euros and doesn't represent a UK limit. The stake cap detailed below determines the maximum bet for UK players.
The small print, rule by rule
NetEnt's rules are listed here as they appear on its game page. The help screen within the game at your chosen casino is the one that counts. Rules can differ between versions of a game.
Avalanche wins
You need 3 or more identical symbols in a line for a win. These winning symbols disappear, and new symbols fall into the empty spaces. This can produce further wins, all stemming from the same paid spin.
Where Wilds land
A Wild is placed at the centre of a winning line once it disappears. The page explains precisely where:
- Odd-length wins: the Wild lands in the position of the middle symbol.
- Even-length wins: a line of four lacks one single middle. For a horizontal win, the Wild goes in the left-centre position. For a vertical win, it goes in the upper-centre position.
- Crossing wins: if two wins intersect, at least one Wild lands where they meet.
Wilds replace every symbol besides Scatters. If 3, 4 or 5 Wilds align without creating a win with other symbols, they give the highest prize in the paytable for that length.
Feature Generator
The Feature Generator advances with every win during the main game. When you achieve five wins in a row, the game randomly gives one of five features, provided one at a time:
- Destroy: takes away one or more random symbol types from the reels.
- Random Wilds: changes 3 to 9 paying symbols into Wilds.
- Expanding Wilds: converts each Wild on the reels into three Wilds stacked vertically.
- Line Transform: populates a reel or row with one randomly picked paying symbol.
- Upgrade: changes one or more symbols of a specific type into a symbol that pays more.
It isn't stated on the page if progress carries over between paid spins. Do not assume it does.
Galaxy Star and the Galaxy Metre
The fifth Feature Generator trigger activates Galaxy Star. A 3×3 Starburst Wild is positioned randomly as the grid expands to 7×7. Once wins are calculated, 4 to 8 ordinary Wilds appear to replace the winning symbols. Features remaining in the Feature Generator are triggered once Galaxy Star concludes.
The Galaxy Metre is activated by the appearance of the 3×3 Wild. Every win increases its value. Galaxy Star is granted once more at 50.
Mega Star and the multiplier metre
Three Scatters appearing in one spin trigger Mega Star. A 2×2 Starburst Wild is positioned randomly. Once wins are calculated, the symbols that won vanish and 2 to 5 ordinary Wilds appear.
Certain Scatters may have a multiplier of x2, x3, x5, x10 or x25. These populate the Multiplier Collect Metre, which is then applied to all wins for the remainder of that game round. For instance, if you collect an x5 Scatter early, it multiplies every subsequent win in that same round. It doesn't carry over to your next paid spin.
Elevate (feature buys)
You can use a single Elevate option during each game round:
| Option | Price | What it does |
|---|---|---|
| Bonus Boost | 3× bet | Raises the chance of reaching Galaxy Star |
| Mega Star | 10× bet | One free main-game spin with 3 Scatters guaranteed |
| Boosted Mega Star | 50× bet | As Mega Star, with at least 2 Scatters carrying multipliers |
| Galaxy Star | 100× bet | Guarantees access to Galaxy Star |
| Galaxy Star Bonanza | 500× bet | Starts Galaxy Star with all 5 Feature Generator features already awarded |
What the published rules don't cover
NetEnt's page omits:
- the way a dropped connection or malfunction is resolved
- the outcome for a feature that remains unfinished
- if simultaneous wins are paid out in a specific sequence
- if bonuses can retrigger, other than the Galaxy Meter
- if the maximum win can be surpassed via a bought feature
- the treatment of an interrupted feature buy
Look at the help screen within the game you are playing for these.
How UK rules change the game
Licensed operators can legally offer online slots in Great Britain. A stake cap per game cycle applies to them:
- £5 for those 25 and older (effective from 9 April 2025)
- £2 for those aged 18 to 24 (effective from 21 May 2025)
Feature buys count toward the cap
Any amount risked or paid for the game is considered a stake, meaning an Elevate price is counted entirely. A buy won't be offered at a specific stake if the base bet multiplied by the multiple exceeds your cap.
- Bonus Boost (3×): exceeds the £5 cap when your base bet is more than £1.66⅔. For 18 to 24-year-olds, it exceeds £2 when the base bet is over £0.66⅔.
- The 10× to 500× options: the base bet at which the buy hits the cap is lower as the multiple increases.
In practice, the biggest buys are unavailable except at the lowest base stakes, if they are offered at all.
Controls you won't see
The Gambling Commission's technical standards remove several controls from UK play:
- No autoplay. You must start each paid spin yourself.
- No turbo, quick spin or slam stop. No tool can reduce the time it takes to get a result.
- At least 2.5 seconds have to elapse between the beginning of one paid spin and the following one.
Avalanches and features occur within a single game round, so they aren't separate paid spins.
No fanfare for small returns
With a 24.00% hit frequency, many hits pay back no more than your stake. According to UK rules, these returns don't trigger any animations or win sounds.
Set a budget and a time limit before you play, and stop once you hit either.