Explore our list of free online slots. Play slots without risking any money and learn the gameplay and mechanisms behind them.
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Big Bamboo
Play for Free
Big Bamboo Push Gaming
Gates of Olympus
Play for Free
Gates of Olympus Pragmatic Play
Sweet Bonanza
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Sweet Bonanza Pragmatic Play
Wanted Dead or a Wild
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Wanted Dead or a Wild Hacksaw Gaming
Book of Shadows
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Book of Shadows Nolimit City
Book of Dead
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Book of Dead Play'n GO
Big Bass Bonanza
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Big Bass Bonanza Pragmatic Play
Bigger Bass Bonanza
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Bigger Bass Bonanza Pragmatic Play
Tombstone RIP
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Tombstone RIP Nolimit City
True Grit Redemption
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True Grit Redemption Nolimit City
Razor Shark
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Razor Shark Push Gaming
Starlight Princess
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Starlight Princess Pragmatic Play
Fruit Party
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Fruit Party Pragmatic Play
Power of Gods: Hades
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Power of Gods: Hades Wazdan
Power of Sun: Svarog
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Power of Sun: Svarog Wazdan
Money Train 2
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Money Train 2 Relax Gaming
Floating Dragon Hold and Spin
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Floating Dragon Hold and Spin Pragmatic Play
Fire in the Hole
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Fire in the Hole Nolimit City
Gems Bonanza
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Gems Bonanza Pragmatic Play
Jammin' Jars 2
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Jammin' Jars 2 Push Gaming
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Free online slot machines

Online slot machines, with their easy rules and fun bonuses, are the most popular casino game worldwide. The games have come a long way in a few years, and many are now offering elaborate themes and unique features. This might sound overwhelming, but thanks to free versions, it is easier than ever to get to grips with them.

On this page, you will find our selection of free online slot machines. Click on a game to start playing or keep reading to learn more about online slots first.

How do free casino slots work?

Slot machines are incredibly simplistic games in which players wager on the results of a single spin. The games normally feature spinning reels uncovering various symbols. The goal of the game is simply to win a prize by spinning the reels and lining up identical or specific symbols.

Some slots also include unique features such as wilds and scatters in their gameplay to make the game more interesting. No matter which slot you play, the outcome is completely random and the games, therefore, require zero skills.

Slot games can generally be played for real money or as no deposit slots (in demo mode). Free slots to play for fun allow you to get a feel for the game before committing any real cash. The gameplay is exactly the same as in the "real version", but no real money is wagered. This is a great option for those who are unfamiliar with slots or just want to play for fun without risking real money.

4 free slot machine games to try in demo mode

There are hundreds of online slots available from different providers, so it can feel a bit overwhelming to choose one. Therefore, we at Casino Universe want to recommend some top free games to get started with:

  1. Gates of Olympus – Pragmatic Play
    Gates of Olympus is a mythical slot machine that has 6 reels, 5 rows, and an All Ways Win structure. If you get 8 or more identical symbols in any position on the reels, you win. They can be anywhere on the screen, on different reels, or even in separate clusters that aren't connected. The return to player (RTP) of the slot is 96.5%.
  2. Book of Dead – Play'n GO
    Book of Dead is one of the best free slots online. The popular slot is developed by Play'n GO and features 5 reels, 3 rows, and 10 paylines. To win, you need to line up 3 or more identical symbols along the 10 active paylines, which begin at the first reel.
    The standard return to player (RTP) is 96.21%, and the volatility is high. The game offers winnings up to 5,000 times your bet.
  3. Big Bass Bonanza –Pragmatic Play
    Big Bass Bonanza comes with 5 reels, 3 rows, and 10 win lines. In this game, you win when you land three identical symbols on the 10 paylines (running left to right). The return to player percentage is 96.71%, which is quite high for a video slot. It's a great option for free slot games with bonus rounds.
  4. Gonzo's Quest – NetEnt
    In 2011, NetEnt released Gonzo's Quest, a video slot that quickly became a fan favorite among gamblers. It is a five-reel, three-row video slot game with 20 paylines. The slot has medium to high volatility, with potential payouts of up to 2500 times your bet.
    The game is inspired by Gonzalo Pizarro, the titular conqueror. His plan was to use the Amazon's map and compass to locate El Dorado, the legendary city of riches. And in this slot, Gonzo is on the hunt for grand winnings!

Benefits of playing free online slots in demo mode

Playing free casino slot games for fun offers a number of benefits, which is why we offer a grand selection here at Casino Universe. By trying some of these free online slot machines, you can enjoy the following perks:

  1. Learn before you play for real money
    Free slot machines are often a helpful tool for gaining an understanding of the mechanics behind a certain game. By playing a few rounds for free, you can get a feel for the game's settings and features, as it will work exactly the same way in the demo version.
    You can also play free online pokies to see whether it's something you'd be interested in before committing to pay any real money. As a result, you can determine whether or not the game is something you will enjoy. If you don't, you won't lose any cash.
  2. It's risk-free
    As no real money is at stake during demo play, you can relax and have fun without worrying about losing any real cash. This also means that you can play for as long as you like without worrying about draining your funds, as you can simply refresh the game to top up your "balance".
  3. You can find the best games for you
    There are thousands of slot machines available to play online at online casinos. While this may seem overwhelming to some, it really ensures that there is a game suitable for everybody. But finding your favorites can take time.

By trying out a bunch of different slots in demo mode, you can find your preferred games without any spending. Simply try games from different providers and with different features to figure out what you like, and then you can choose to play the game for real if you wish.

Play free slots with bonus and free spins

While demo mode is one way to play free slot games, it's also possible to play slots with free spins bonuses for "free". Casinos regularly offer such bonuses to new and active players alike, and by using free spins given by the casino, any winnings you land are real.

While it is free to play these spins, you normally have to make a deposit to get them and/or wager your winnings before cashing them out. This means that they are not 100% free, and you will need to fulfill certain conditions in order to withdraw your winnings, but they still might be a great way to play "for free" while having the chance to win real money.


Can I win real money in free casino slot games?

Unfortunately, you can't. In demo mode, you don't wager real money, so you can't expect to win any real money either. All winnings made in demo mode versions are fake and can't be cashed out.

What do I need to play the best free slot games?

All you need to play a demo slot is a device to play from (mobile or desktop) and a stable internet connection. With that, you can browse our selection of free slots right here at Casino Universe, choose your favorite, and then simply start playing.

Do free slots have the same features as normal slots?

Yes, they do. Free penny slots are basically the same as normal slots, except that you don't use real money to play them (and therefore don't win any real money).

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