Best alien-themed online slots and free alien slot demos

ALIEN Online Slots – Ranked List, Free Demos & Best Casinos

If you're looking for the top-rated alien-themed slots, you've come to the right place! Our updated CGSCORE ranking highlights the best alien slots online, from classic adventures to modern alien bonus games. Play free demos to explore the gameplay risk-free and learn the mechanics at your own pace — no deposit needed.

Where to Play ALIEN-Themed Slots for Real Money at Trusted Casinos

Ready to move beyond free demos? Find safe and trusted online casinos offering alien slots and claim exclusive bonus deals from our recommended real-money sites. Whether you're chasing big wins, bonus features, or immersive alien adventures, these top-tier casinos deliver the ultimate alien-slot experience.

 Top SlotsNew SlotsUpcomingHigh RTPBonus BuyMegawaysHalloween Top Free alien Slots Sort by: Max Win - RTP - Rating - Release Wild Worlds
CGSCORE 66
NetEnt Wild Worlds
Max Win: 2500x
RTP: 96.47%
 Mars Attacks
CGSCORE 62
Blueprint Mars Attacks
Max Win: 10000x
RTP: 96.44%
 Iron Girl
CGSCORE 61
Playn Go Iron Girl
Max Win: 1000x
RTP: 96.7%
 Reptoids
CGSCORE 63
Yggdrasil Gaming Reptoids
Max Win: 5000x
RTP: 96.1%
 Reactoonz
CGSCORE 86
Playn Go Reactoonz
Max Win: 4570x
RTP: 96.51%
 Emojiplanet
CGSCORE 63
NetEnt Emojiplanet
Max Win: 5000x
RTP: 96.4%
 Chibeasties 2
CGSCORE 67
Yggdrasil Gaming Chibeasties 2
Max Win: 900x
RTP: 96.2%
 Alien Spinvasion
CGSCORE 64
Rival Alien Spinvasion
Max Win: x
RTP: 95.98%
 Super Heroes
CGSCORE 69
Yggdrasil Gaming Super Heroes
Max Win: 3200x
RTP: 96.1%
 Star Quest
CGSCORE 72
Big Time Gaming Star Quest
Max Win: 10000x
RTP: 96.9%
 Chibeasties
CGSCORE 62
Yggdrasil Gaming Chibeasties
Max Win: 2000x
RTP: 96.2%
 Aliens
CGSCORE 65
NetEnt Aliens
Max Win: 600x
RTP: 96.4%
 Energoonz
CGSCORE 80
Playn Go Energoonz
Max Win: 18566x
RTP: 96.69%
 Spacebotz
CGSCORE 64
Genesis Gaming Spacebotz Invaders from the Planet Moolah
CGSCORE 71
Williams Interactive Invaders from the Planet Moolah
Max Win: 2000x
RTP: 96%
 Space Wars
CGSCORE 70
NetEnt Space Wars
Max Win: 1000x
RTP: 96.75%
 Cowboys and Aliens
CGSCORE 68
Playtech Cowboys and Aliens Alien Robots
CGSCORE 68
NetEnt Alien Robots
Max Win: x
RTP: 96.6%
 << Prev 1 2 3 4 Back to top Play ALIEN Slots for Real Money Here ⬇
FortuneJack Casino Rating 4.6/5 68+ Game Providers

Curacao-License

 1st Deposit Bonus
100% up to 1000 Free Spins + 50 Free Spins (No Wager)*
Bonus T&C Apply Bonus code: cryptocasinosonnet Min. deposit: $20 Wager requirement: 10X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Stake US Rating 4.4/5 24+ Game Providers Exclusive Bonus
$25 Free When Verified*
bonusinfo There is a No Deposit Bonus available: 10000 Gold Coins + 1 Stake Cash
Bonus T&C Apply No bonus code required Wager requirement: 0X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. CryptoGames.io Casino Rating 4.4/5 59+ Game Providers Exclusive Bonus
50 Free Spins*
Bonus T&C Apply No bonus code required Min. deposit: $100 / 0.001 BTC Wager requirement: 5X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. LuckyDays Casino Rating 4.3/5 53+ Game Providers

Curacao-License

 1st Deposit Bonus
100% up to $/€100 + 100 Free Spins*
Bonus T&C Apply No bonus code required Min. deposit: $/€20 Wager requirement: 25X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Snatch Casino Rating 4.3/5 80+ Game Providers

Curacao-License

 1st Deposit Bonus
200% up to $/€1000 + 100 Free Spins*
Bonus T&C Apply No bonus code required Min. deposit: $/€15 Wager requirement: 40X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Betway Casino Rating 4.2/5 24+ Game Providers

Malta-License (EU)

 1st Deposit Bonus
100% up to $/€250*
Bonus T&C Apply No bonus code required Min. deposit: $/€10 Wager requirement: 50X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Crypto Slots Rating 4.1/5 2+ Game Providers Exclusive Bonus
177% up to $500*
Bonus T&C Apply Bonus code: MATCH177EPLAY Min. deposit: $25 Wager requirement: 35X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Canada777 Casino Rating 4.1/5 139+ Game Providers

Curacao-License

 Exclusive Bonus
300% up to €1000 + 100 Free Spins*
bonusinfo There is a No Deposit Bonus available: 50 Free Spins
Bonus T&C Apply Bonus code: BONUS8 Min. deposit: $/€10 Wager requirement: 35X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Candy Casino Rating 4.1/5 128+ Game Providers

Curacao-License

 Exclusive Bonus
200% up to $/€200*
bonusinfo There is a No Deposit Bonus available: 100 Free Spins
Bonus T&C Apply Bonus code: GAMESONNET Min. deposit: $/€20 Wager requirement: 40X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. BetOnline Casino Rating 3.9/5 7+ Game Providers 1st Deposit Bonus
100% up to $1000*
Bonus T&C Apply Bonus code: CRYPTO100 Min. deposit: $25 Wager requirement: 14X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Aladdins Gold Casino Rating 3.9/5 1+ Game Providers

Curacao-License
No bonus available
Visit Casino 18+ | T&C Apply | Play Responsibly | BeGambleAware.org Bet365 Casino Rating 3.9/5 14+ Game Providers 1st Deposit Bonus
100% up to €100*
Bonus T&C Apply No bonus code required Min. deposit: €10 Wager requirement: 20X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Europa777 Casino Rating 3.9/5 139+ Game Providers

Curacao-License

 Exclusive Bonus
300% up to €1000 + 100 Free Spins*
bonusinfo There is a No Deposit Bonus available: 50 Free Spins
Bonus T&C Apply Bonus code: BONUS8 Min. deposit: $/€10 Wager requirement: 35X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Swift Casino Rating 3.9/5 48+ Game Providers

Malta-License (EU)

 1st Deposit Bonus
100% up to $/€100 + 50 Free Spins*
Bonus T&C Apply Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Max. Bonus €100. Maximum amount of Free Spins is 50. Game: Book of Dead, Spin Value: €0.10. WR of 30x Deposit + Bonus amount and 60x Free Spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min €0.10) of the free spin winnings and bonus amount or €5 (lowest amount applies). Spins must be used and/or Bonus must be claimed before using deposited funds. Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. America777 Casino Rating 3.8/5 139+ Game Providers Exclusive Bonus
300% up to €1000 + 100 Free Spins*
bonusinfo There is a No Deposit Bonus available: 50 Free Spins
Bonus T&C Apply Bonus code: ZX88 Min. deposit: $/€10 Wager requirement: 35X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country.
TOP CASINOS
MyStake Casino MyStake
Slotoro Casino Slotoro
Slotrave Casino Slotrave
Winz.io Winz.io
Slotsgem Slotsgem
HypeKasino HypeKasino
More top casinos