Starburst XXXtreme is a NetEnt video slot released on 15 July 2021 as a high-volatility variation of the original Starburst. Starburst XXXtreme uses a 5x3 reel layout with 9 fixed win lines and concentrates its feature set on expanding Starburst Wilds, locked Re-Spins and random Multipliers. Its optional XXXtreme Spins mode can guarantee one or two Starburst Wild symbols for an increased stake.
Starburst XXXtreme places jewel, BAR and red 7 symbols on five reels and three rows. Starburst XXXtreme evaluates wins on 9 fixed lines, with qualifying combinations running in succession from the leftmost reel towards the right.
Starburst XXXtreme builds its main variation around Wild symbols that appear on the three middle reels. Starburst XXXtreme can expand and lock those Wilds during Re-Spins, while each Wild carries one value selected from a defined Multiplier range.
Starburst XXXtreme has the following verified specifications:
Starburst XXXtreme is listed by Wildz with an RTP of 96.26%, volatility of 9/10 and free demo play enabled. NetEnt also publishes configurations and feature modes with different mathematical figures, so the information panel inside the version being played remains the relevant place to confirm its active RTP, stake and payout conditions.
Starburst XXXtreme produces line wins when matching symbols land consecutively from the first reel on one of its 9 fixed win lines. Starburst XXXtreme pays only the highest result on each winning line, and its regular symbols include coloured gems, a red 7 and a BAR.
Starburst XXXtreme applies one stake to the selected spin unless an optional XXXtreme Spins setting is activated. Starburst XXXtreme uses independently generated outcomes, so a previous loss, Wild sequence or Multiplier does not make a particular result due on the next spin.
Starburst XXXtreme places Starburst Wild symbols on reels 2, 3 and 4, where they substitute for the regular paying symbols. Starburst XXXtreme expands a landed Wild to cover its entire reel, awards a Re-Spin and attaches a random Multiplier of x2, x3, x5, x10, x25, x50, x100 or x150.
Starburst XXXtreme locks every reel covered by an expanded Starburst Wild for the following Re-Spins. Starburst XXXtreme can add another expanding Wild and another Re-Spin during the sequence, but no staking pattern can guarantee that an extra Wild or a high Multiplier will appear.
Starburst XXXtreme may activate Random Wilds after a standard spin or a Re-Spin. Starburst XXXtreme then awards 1 to 3 Starburst Wilds on reels 2, 3 and 4, with each one expanding and receiving its own random Multiplier.
Starburst XXXtreme can therefore begin or extend a locked-Wild sequence through a randomly triggered event. Starburst XXXtreme does not let the player choose when Random Wilds activate, how many are awarded or which Multiplier values they receive.
Starburst XXXtreme offers two optional XXXtreme Spins selections. Starburst XXXtreme charges 10x the normal bet to guarantee 1 Starburst Wild on the next spin, or 95x the normal bet to guarantee 2 Starburst Wilds.
Starburst XXXtreme changes the stake and guaranteed starting conditions when this option is used, not the ability to select the final reel outcome. Starburst XXXtreme players should check the displayed total cost before confirming either mode because the increased price is charged for each activated XXXtreme Spin.
Starburst XXXtreme has an RTP of 96.26% as listed by Wildz for the MGA build used by the supported locales on this page. Starburst XXXtreme RTP is a long-term mathematical measure across a large number of rounds, not a prediction for one session or one balance.
Starburst XXXtreme can exist in more than one configuration, and NetEnt publishes separate figures for certain feature settings. Starburst XXXtreme players should therefore open the in-game rules and information panel to verify the RTP attached to the version and mode currently selected.
Starburst XXXtreme carries a volatility value of 9/10 as listed by Wildz, which is described as high. Starburst XXXtreme concentrates more of its outcome range around infrequent feature combinations involving expanding Wilds, Re-Spins and Multiplier values.
Starburst XXXtreme high volatility means the balance can change unevenly and does not mean a large result becomes more likely after a run without one. Starburst XXXtreme players can reduce the amount exposed per paid round by selecting a lower stake, but cannot alter the programmed probability of the symbols.
Starburst XXXtreme has a maximum payout of 16,800x bet on NetEnt’s current game page. Starburst XXXtreme reaches its upper outcome range through line wins that involve expanded Starburst Wilds and their attached Multipliers.
Starburst XXXtreme maximum payout is a theoretical cap rather than a typical result. Starburst XXXtreme does not provide a method for forcing the required symbols or Multiplier combination, and the selected stake changes the cash value rather than the relative x-bet ceiling.
Starburst XXXtreme begins by letting the player select a stake, review the 9 fixed win lines and choose whether standard play or an XXXtreme Spins option is active. Starburst XXXtreme then starts a paid reel cycle through the spin control, with the rules panel showing the applicable paytable and configuration.
Starburst XXXtreme real-money play in Great Britain must remain within the statutory online slot limit of £2 per game cycle for customers aged 18 to 24 and £5 for customers aged 25 and over. Starburst XXXtreme XXXtreme Spins can multiply the base stake cost, so the total displayed charge must still comply with the limit applied by the licensed operator.
Yes, Starburst XXXtreme can be played on compatible mobile phones and tablets. Starburst XXXtreme is present in Wildz’s desktop and mobile catalogues, and the 5x3 layout adapts its reels and controls to supported screen sizes.
Starburst XXXtreme mobile play retains the same core Wild, Re-Spin and XXXtreme Spins mechanics. Starburst XXXtreme players should still verify the displayed RTP and total feature cost on the device in use because screen format does not remove the need to review the active game rules.
Yes, Starburst XXXtreme has demo play enabled by Wildz and gameservice. Starburst XXXtreme free play uses virtual credits, allowing the 9 win lines, expanding Wilds, Random Wilds and Re-Spins to be observed without cash prizes.
Starburst XXXtreme demo outcomes do not forecast later real-money results because both modes use independently generated rounds. Starburst XXXtreme free-to-play access through a Great Britain-licensed gambling business is also subject to age-verification requirements before access is provided.
Starburst XXXtreme may be supplied in Great Britain by an online casino holding the appropriate Gambling Commission permission and carrying the relevant NetEnt build. Starburst XXXtreme customers must be at least 18 years old, complete required age and identity checks and follow the operator’s responsible-gambling controls.
Starburst XXXtreme appears in Wildz’s international catalogue, while Wildz states that visitors from the United Kingdom are redirected to partner casinos. Starburst XXXtreme players should use the Gambling Commission public register to check the licence status and declared domains of the business through which they intend to play.
Starburst XXXtreme real-money play in England, Scotland and Wales falls within the framework overseen by the Gambling Commission. Starburst XXXtreme is an online slot, so licensed operators must apply the age-based stake limits that took effect on 9 April 2025 and 21 May 2025.
Starburst XXXtreme access also requires an online gambling business to verify age and identity before gambling. Starburst XXXtreme players should distinguish Great Britain from Northern Ireland, which operates under a separate legal framework rather than the Gambling Act 2005 system applied in England, Scotland and Wales.
| Area | United Kingdom Rule |
|---|---|
| Minimum online gambling age | 18+ |
| Main regulator | Gambling Commission |
| Online casino licensing | Operators serving Great Britain must hold the appropriate Gambling Commission licence |
| Age and identity checks | Verification is required before online gambling |
| Maximum online slot stake, ages 18-24 | £2 per game cycle |
| Maximum online slot stake, ages 25+ | £5 per game cycle |
| Free demo access at licensed operators | Age verification is required before access to free-to-play gambling games |
| Wildz status for UK visitors | Wildz states that UK visitors are redirected to partner casinos |
Min/Max Bet:
€
0.10 –
50.00
Volatility:
High
(9/10)
Platform:
Desktop & Mobile
Developer:
Net Ent
Game Type:
Slots