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Starburst XXXtreme — slot review
Starburst XXXtreme is a slot by NetEnt (released 2021) with an RTP of 96.26%, high volatility, and a max win of x200,000 on your bet. Theme: outer space, gemstones.
RTP 96.26%High volatilityup to x200,0005x3
Free demo
Free, virtual chips only — no sign-up
Demo mode uses a virtual balance and pays no real winnings. It is meant for getting familiar with the game.
Specifications
| Provider | NetEnt |
| Release year | 2021 |
| RTP | 96.26% |
| Volatility | High volatility |
| Max win | x200,000 |
| Reels | 5x3 |
| Paylines | 9 paylines (pays both ways) |
| Theme | outer space, gemstones |
| Mechanics | expanding wilds, random multipliers, re-spins, xxxtreme spins |
Why the RTP at a casino may differ
Providers ship the same game in several return configurations, and each casino picks which version it runs. Across the market the spread typically runs 2–8 percentage points below the headline figure. The number here is the provider specification — the version actually running is shown inside the game, in its rules screen.
Starburst XXXtreme review
Starburst XXXtreme is a radical reimagining of NetEnt's biggest hit for the age of extreme volatility. The familiar cosmic aesthetic remains, but the maths has been flipped on its head: wilds now pick up random multipliers of up to 150x that multiply with one another, and the top potential has soared from 500x to a mind-bending 200,000x. The XXXtreme Spins mode lets you pay extra for one or two guaranteed wilds on a spin. This is NetEnt's answer to everyone who found the original too tame: the same shell, an entirely different adrenaline rush.
Where to play Starburst XXXtreme
Top-rated casinos from our ranking that carry NetEnt games in their catalog:
100% up to €100 on your first deposit (in the US — up to $1000 + 1000 free spins)
First-deposit welcome bonus + free spins (e.g. 100 FS on Gates of Olympus); terms vary by country
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See also
This review was prepared by the Casino Atlas editorial team. Last updated: July 2026. Specs are based on provider data; the RTP version may differ at a specific casino.