Series
Starburst series
Starburst series: NetEnt's expanding-wild formula under higher pressure
The Starburst series is NetEnt's expanding-wild and respin franchise, built on the original game's luminous gems and wins paid in both directions. Starburst established that formula in 2013 with a 5x3 grid, 10 paylines, low volatility and a 500x maximum. Its identity comes from a simple event: a wild expands, locks and awards a respin.
Ranked by Slot Score
| Game | Year | RTP | Volatility | Slot Score |
|---|---|---|---|---|
 StarburstNetEnt | 2013 | 96.09% | Low volatility | 74 |
 Starburst XXXtremeNetEnt | 2021 | 96.26% | High volatility | 80 |
 Starburst GalaxyLatestNetEnt | 2024 | 96% | Medium/High | 84 |
Starburst XXXtreme retained the expanding-wild respin but reversed the original's risk profile. The 2021 sequel uses nine paylines, high volatility, random and wild multipliers, plus a bonus buy. Its 200,000x maximum turns a low-pressure line slot into a game built around rare multiplier combinations.
Starburst Galaxy changes the win system rather than merely intensifying it. The 2024 game moves to a 6x5 cluster grid with mega symbols, symbol removal, reel changes and random multipliers. Medium/high volatility and a 25,000x maximum place it between the earlier releases on raw risk, but its cluster reactions make it the largest structural break.
The franchise now offers distinct interpretations of the same visual code: the original for low-volatility expanding-wild respins, XXXtreme for multiplier-driven ceiling chasing, and Galaxy for cluster play with changing symbols. What stayed constant is immediate recognition; what changed is how much complexity and payout concentration sits behind the gems.