Newsletter

Receive our latest exclusive bonuses, info about new casinos and slots and other news.

Outer Space Invaders (Leander Games)

Outer Space Invaders is a 5-reel slot from Leander Games, offering up to 25 paylines/ways to win. Play free demo instantly—no download needed—and explore all bonus features risk-free. Optimized for desktop and mobile, this slot delivers smooth gameplay anywhere. Ready for real money play? Scroll down to find our top-rated Leander Games online casinos, selected for safety, quality, and generous welcome bonuses.

Outer Space Invaders Free Slot Demo

Responsible Gaming

To access demo slot please confirm that you are at least 18 years old

« BACK

Facts & Features

RTP ? : 96.01%

Max Win: 5000x

Slot Rating: 5 / 10 😐 Mediocre

Bonus Multiplier, Expanding Wilds, Pick Bonus,

Slot Themes

Aliens, Sci Fi, Space,

« BACK

Outer Space Invaders Review

Outer Space Invaders by Leander Games is an online slot which is playable on most devices, including mobiles and pads. This game has some interesting themes and exciting features to know about. Find out more from our Outer Space Invaders slot review below. Further down this page you can also find more popular slots from Leander Games.

Pros and Cons

Positive

Sci-Fi Themed
Decent Max Win at 5000x
Expanding Wilds

Negative

Not Many Features
No Progressive Jackpot

Themes and Gameplay

Outer Space Invaders base game screenshot showing reels and features

Outer Space Invaders is designed with themes like Aliens, Sci Fi, Space, in mind. The layout of this game is pretty standard and consists of 5 reels with 25 possible paylines. In most jurisdictions you can also select the Autoplay option when playing Outer Space Invaders. You can choose from 10, 25, 50, 100 or even more spins. You can opt to stop Autoplay on a win, if a single win exceeds a certain amount, or if your balance increases or decreases by a chosen amount. This is a great way to stay in control and to play more responsibly.

Maximum Win, RTP and Volatility

Here you have the potential to win 5000 times your total bet. This can give you very big wins if you manage to hit some high paying symbols. This value is calculated on a very large number of spins, often a billion spins.

The standard RTP for Outer Space Invaders is 96.01% (Can be lower on some sites). This is quite low and considered to be below average for an online slot. RTP stands for Return to Player and is the percentage of stakes the game returns to the players. For example, if a player bets €10 the expected return for this game would then be €9.601. However, the RTP value is calculated over millions of spins which means the outcome of every spin will be totally random.

Game Features

Who doesn't like plenty of action and great features in a slot! Some of the most popular features available in Outer Space Invaders is Bonus Multiplier, Expanding Wilds, Pick Bonus, It also has a bonus game, the most liked free spins bonus rounds and if you are lucky this is usually where you can win the big bucks.

Reviewed 7/7/2019 by CasinoSlotsGuru.com

Slot Rating: 5 / 10 😐 Mediocre

❓ Outer Space Invaders – Frequently Asked Questions

🎮 Can I play Outer Space Invaders for free?

Yes! You can try the Outer Space Invaders demo slot directly on CasinoSlotsGuru.com without registration. It’s a great way to explore the game’s features, visuals, and volatility before betting real money.

💰 How do I play Outer Space Invaders for real money?

To play for real money:

Choose a licensed Leander Games casino from our recommended list.
Create an account and make your first deposit.
Claim your welcome bonus (if available).
Search for “Outer Space Invaders” in the slot section.
Set your bet and hit spin button!

🎁 Are there bonuses for Outer Space Invaders?

Yes! Many of our featured casinos on this page offer welcome bonuses, including free spins and deposit matches, that can be used on this slot. Always check the bonus terms for eligibility and wagering requirements.

🔥 What is the maximum win in Outer Space Invaders?

The slot offers a max win of 5000x your total bet.

Example: A €1 bet could return moderate wins up to €5000 if you hit the top payout.

📊 What is the RTP of Outer Space Invaders?

RTP (Return to Player): 96.01% – around average for online slots.

🧪 Is the demo version the same as the real game?

Yes. The demo version mirrors the full game in terms of features, mechanics, and visuals. The only difference is that you can’t win real money.

🧠 How do I win at Outer Space Invaders?

Winning depends on luck, but understanding the game’s mechanics helps:

Learn how Paylines work.
Use Autoplay responsibly with stop conditions.
Trigger the free spins bonus round for the best chance at big wins.

📱 Is Outer Space Invaders available on mobile?

Absolutely. The game is fully optimized for mobile play on both iOS and Android devices. You’ll enjoy smooth gameplay and stunning visuals on any screen size.