Who Makes the Best Online Slot Games?

Playing online slot games is a great way to pass the time while also giving yourself the chance of hitting a big jackpot. Just like in a real casino, you can play slots online for real money. There are tons of websites and online casinos that offer a wide range of virtual slot machine games, from simple 3-reel slots to complex video slots.

Here’s our list of some of the best online slot game developers and the various games that they offer. We have also included the games return-to-player (RTP) percentage so you know which gives the best winning odds.


Some slots are themed on famous movies or TV shows while others have complex bonus features and progressive jackpots. Whatever kind of slot games you are looking for, Playtech has something out there for you.

Gaelic Luck

This 20-payline slot from Playtech features a 10,000 coin jackpot and a 97% RTP. It’s a 5-reel slot with an Irish theme, decked out with 4-leaf clovers and beautiful women.

Age of the Gods: Medusa and Monsters

This fun 6-reel slot from Playtech has an impressive 164-paylines and a progressive jackpot. Although it’s RTP is only 95%, the potential to win the ever-increasing jackpot makes it highly attractive.


NetEnt is one of the biggest developers of online casino games, particularly slots. Some of the

best rated NetEnt slot games are used by several online gambling sites from around the world.

Blood Suckers

Blood Suckers is a great slot with one of the highest RTP’s available, at 98%. It features a thrilling vampire theme and players will benefit from 25 potential winning paylines. It also has a great bonus that gives you 10 free spins, each with a 3x multiplier on any wins plus the infamous Blood Hammer bonus game.

Bob: The Epic Viking Quest for the Sword of Tullemutt

This Viking-themed slot from NetEnt might have the longest name of any slot game ever made. However, it also has a very high RTP, at 98%. This gives you high chances of coming out on top, especially with its bonus round of 10 free spins and a huge 7,500 coin jackpot!

Secrets of Atlantis

This 40-payline underwater-themed slot features the Colossal Symbol Respin bonus for extra spins. It has a slightly lower RTP of 97.1% but that doesn’t make it any less worth a go. The unique Nudge Wild symbol that it features will automatically move up and down if it lands near an active payline, giving you an instant win.


Immortal Romance

Another vampire-themed slot that has benefited off of the popularity of movies like Twilight. Immortal romance has excellent graphics mixed with a wide range of bonus options. It’s RTP of 96.86% is not the highest but the wilds, scatters and free spins make it worthwhile.

Thunderstruck 2

You haven’t played online slots until you’ve played Thunderstruck 2, a hugely popular 5-reel slot with 243 paylines and 6000 coin jackpot. The RTP of 96.65% is fairly attractive and the Norse mythology theme adds a bit of thrill and excitement.

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