Ugga Bugga – 99.07%

Playtech takes home the title of offering the highest RTP (return to player) of any slot game with a massive 99.07%, just peeking over the RTPs of the following three slots. This Aztec-themed slot has an interesting format that sees you spinning three reels and holding the one that you think will offer the biggest payout. When you spin again the rest of the 30 icons will fill, giving you lots of chances for pay lines. The drawback of this innovative take on slots is that there are no helpful features to make pay lines easier, but with an RTP of 99.07%, do you really need any more? There are numerous online slot videos proving that these machines have the highest odds of winning.

Mega Joker – 99%
From developer NetEnt, this familiar theme of king’s jesters isn’t even the only slot with the name Mega Joker, but it is the only one with 99% RTP.

With graphics that try to evoke the typical bar slot machine as much as possible, you spin through icons of lemons and grapes on a three-reel board, surrounded by flashing lights and a jukebox-esque backdrop. There is even a Supermeter Mode that, if you decide to gamble your winnings on, can offer you an even bigger win.

Jackpot 6000 – 98.8%
Also from NetEnt, Jackpot 6000 is very similar to its Mega Joker slot machine, complete with a boxy design and even places you in a casino for the backdrop. It even has the Supermeter Mode. Spin through cherries, lemons, bells, and stars to create pay lines on this three-reel slot. But there is also a double or nothing option in the Heads or Tails feature, where you can make your winnings go even further.

Uncharted Seas – 98.6%
The Uncharted Seas is a beautifully creative slot. Thunderkick has done a good job with this vibrant and clever premise of a sailing map. You spin through icons of mermaids, octopuses, lobsters, suns, and moons as you sail the seven seas for treasure – all depicted in a style that is evocative of a traditional tattoo.

There is also an expanding wild that will make even more pay lines that look initially like a ship. As it expands you see it’s about to be swallowed by a sea serpent. The bonus symbol is a compass and can offer up to 50 free spins.

Blood Suckers – 98%
In a pleasant break from the norm, NetEnt gives us the gothic horror that is the Blood Suckers slot machine. This five-reel slot sees you spinning through icons of Nosferatu, Dracula, a more Anne Rice-looking bloodsucker, and a female vampire with wings. Not to mention garlic, holy water, a bible, and a stake, just to keep things interesting.

There are 25 pay lines available in this game with an RTP of 98%, and features include a wild symbol that replaces any potentially paying icons to create more pay lines, a scatter symbol that offers free spins and a bonus game symbol. It’s perfect for anyone who likes to do their business in the alluring mystery of the dark.

Starmania – 97.87%
Next Gen’s Starmania is a retro classic. Think Starlight Express meets slots. The icons are different brightly coloured stars that need to be matched up to create a pay line.

This is a game with plenty of features. The Bonus symbol will offer you multipliers, the wild symbol will create pay lines, and the scatter symbol gives free spins. What more could you ask for with an RTP of 97.87?