Five Space Slots Worth a Spin: From Starburst to Reactoonz
Neon gems, alien critters and starlit princesses — five space-themed slots that each play very differently, from gentle classics to games built for huge multipliers.
Outer space is one of the most popular slot themes for a reason: a dark background makes glowing symbols pop, and "out of this world" is an easy promise to make. But the theme is only the wrapping. Below are five space slots that feel completely different once you start spinning.
1. Starburst (NetEnt)
The game that made gems-in-space a genre. Released in 2012, Starburst has 5 reels, 3 rows and 10 lines that pay both ways. Its signature move is the Starburst Wild: it lands on the middle reels, expands to fill the reel and triggers a respin — up to three in a row. Volatility is low, the maximum win is 500x the bet and the RTP is about 96.1%. A calm, steady game rather than a bonus hunt.
2. Starburst XXXtreme (NetEnt)
The same look with the opposite temperament. The 2021 remake adds random xWays symbols (which reveal more symbols and add ways to win) and xWilds with multipliers. Volatility is high and the maximum win jumps to 200,000x. Expect long quiet stretches — this one is built for rare, big moments.
3. Reactoonz (Play'n GO)
Little aliens on a 7×7 grid: wins come from clusters of five or more matching symbols, which then explode and make room for new ones. Every win charges the Quantum meter, which unlocks extra features and eventually the giant Gargantoon. RTP is about 96.5%, the maximum win is around 4,570x, and the pace is chaotic in the best way.
4. Starlight Princess (Pragmatic Play)
A celestial princess above a 6×5 grid where wins pay anywhere and winning symbols tumble away. She drops multiplier symbols from 2x to 500x, and free spins keep the multipliers adding up. Maximum win: 5,000x; RTP about 96.5%.
5. Starlight Princess 1000 (Pragmatic Play)
The 2023 sequel keeps the formula but raises the ceiling: multipliers reach 1,000x and the maximum win grows to 15,000x. Same rhythm as the original, higher volatility.
How to choose
| Slot | Volatility | Max win |
|---|---|---|
| Starburst | Low | 500x |
| Reactoonz | High | ~4,570x |
| Starlight Princess | High | 5,000x |
| Starlight Princess 1000 | High | 15,000x |
| Starburst XXXtreme | Very high | 200,000x |
One rule for all of them: casinos can run versions with a lower RTP than the figures above. Open the game's information screen before you play — it shows the exact numbers for that casino. And treat every spin as entertainment with a cost, never as a way to earn money.
