Free Online Slots 2023 | The Ultimate Guide to Play Slot Games for Fun

• Theme: Each slot game has a theme, and this theme determines what the art style will be (it has no effect on the rewards or the chance to win.) For example, the symbols of the Playboy slots use the famous rabbit icon and the background of the game is an image of the Playboy mansion. Or the Thundercats Slot is themed on the popular cartoon from the ’80s Thundercats. Alice in Wonderland themed slots also come in many forms from different software providers.
• Gamble/risk game: After winning a prize, online free slots with this feature give you the chance to play this game. So it is an optional bonus and the player can pass if he wants. If he chooses to play, he will be asked to guess the color or suit of a closed play card. The correct guess can double or even quadruple the prize amount. The Party Time Slots is a good example of  slot having this gamble feature.
• Main symbols: Each free slot online has a set of slot machine symbols that suits the theme, and each symbol pays a different amount. To qualify for an award, it is necessary to place at least two or three of these symbols on a payline.
• Special symbols: Symbols with extra features, usually wild and scatter. Wild can substitute all other symbols and scatter pays from anywhere (even when it does not land on a payline). Usually, the scatter symbol is used to activate the bonus feature too. 
• Reels: This is a literal term. Each free slot has reels and they start spinning when the “spin” button is clicked. If there are identical symbols on a payline when they stop, a payout will be made. Usually, there are 5 reels but some classic games can use only 3 reels.
• Paylines: These are real lines that connect both sides of the reels. They are not straight lines: They pass over the symbols and can have many different shapes. To qualify for a win, you must land the same symbols on any of these lines. You can come across 9 payline slots, 20 line slots, 243 payline slots and many in between. 
• Bonus feature:  Almost all kinds of free downloadable slots offer some kind of bonus feature. For example, the wild symbols may expand and fill the entire reel, or you can win an instant cash prize by landing a specific set of symbols (like a mini jackpot). 
• Free spins: The most famous bonus feature out there. You win a random number of free spins in exchange for landing a specific symbol (usually scatter) or triggering a certain condition (i.e. landing the scatter symbol on reels 1 and 3 at the same time).  
• Paytable: The table that explains the rules, bonus features, and symbol payouts in every online slots free. Make sure to read this before starting to play free online slots for fun. 
• Auto-spin: The name of the feature that spins the reels automatically. By defining some conditions, you can have the feature end automatically when these conditions occur (for example, when a big win happens).
• Win Ways: In most of the free slots online, winning combinations are calculated from left to right. This term is used to show the direction from which the calculation is made. There are also games that make calculations from both directions (both ways).

The most important thing to remember is that if you play free online slots the payout will be “virtual”. If you want to win real money, you must play real money slots.

Some of the best online casino software providers have their own list of restricted countries. At the best online casinos in Australia, players, for example, cannot play Netent slots (such as the Jack Hammer slots), and this restriction belongs to the provider himself. In other words, the rules of the providers as well as the laws of the country are effective on whether you can play free slots online or not.

Contrary to popular belief, free online slots no download are not developed by online casinos. There are companies built for this purpose (called “providers”) and they release a new slot almost every month. Below you can see a list of the most successful of these companies.

Netent is the most innovative developer in the industry, along with 2 by 2 Gaming . If you like creative bonus features, make sure to check the Netent casino list updated collection.

IGT:  IGT slots literally invented the video slot games in the 90s. They usually make TV and movie adaptations. They come with retro, old school themes, like the funfair themed Cash Coaster slots or the popular Mustang slots.

The best Novomatic casino sites are the master of old-school gambling and slots with the Ancient-Egypt theme. If you prefer classic video slots Novomatic slots should be your default choice.

Aristocrat: Aristocrat slots are based on Australia and they are the largest provider in that continent. The company offers more than 300 online free slots to play.

Microgaming (check the Microgaming casinos full list) developed the first online slot in the world and launched the first online casino. Yes, they are that good: Microgaming kick-started the whole online gambling industry and Microgaming slots are among the most popular and loved among players, like Tarzan slots, the Carnaval slot, or the Immortal Romance slot.

Playtech: Playtech slots (including the Age of the Gods slots) offer you the chance to play & win with superheroes. The company holds the Marvel and DC Comics licenses, so if you like superhero-themed slots, like Captain America slots, Playtech is the way to go. 

WMS: Williams Interactive slots are one of the oldest companies in the industry. It develops classic video slot games, like Quick Hit casino slots.

Evolution Gaming: Evolution does not offer slot games but it is the number one provider for live dealer games, such as live blackjack and live roulette. Such games are played against real people.

Merkur: Just like Bally slots, Merkur Gaming offers old-school slot games and works for land-based companies too. It is based in Germany. 

Betsoft: Betsoft slots offer quite advanced graphics and animations. Their bonus features are also very creative and consist of actual mini-games.

Yggdrasil: Modern, innovative, profitable, Yggdrasil is a Swedish developer that offers all of these features in its games. It belongs to the famous Cherry Group.