Highest RTP Slots 2021

Players looking for the highest RTP slots in 2021 can look no further. We have published a comprehensive, up-to-date guide to the slots with the highest RTP.



#1 White Rabbit RTP: 97.8%

Firstly, at the top of our ‘Highest RTP slots’ list for 2021 is White Rabbit by Big Time Gaming. This slot has incredible win potential. Released in 2019, White Rabbit is an Alice in Wonderland themed slot with massive win potential. In fact, it is one of the earliest slot games to include a ‘feature buy’! The feature buy allows players to enter the free spins round instantly (but at a premium price).

The best part? Big Time Gaming do not offer casinos the option to adjust the RTP. This means that no matter where you choose to play, you’re guaranteed the highest RTP setting.


#2 Black Knight RTP: 97.79%

Secondly, we have Black Knight with an incredible potential RTP of 97.79%. Developed by WMS, this slot hit the market back in 2011. A decade later, Black Knight still stands the test of time. In addition, it features a great free spins round, plus the option to play in ‘big bet’ mode.

Please note: the highest RTP of 97.79% can only be achieved when playing the slot in ‘Big Bet’ mode. Standard gameplay RTP varies from 95-96%.


#3 Star Mania: 97.7%

Thirdly, Star Mania was released in 2015 by NextGen features third in our highest RTP slots of 2021 list. Styled similarly to Starburst, Star Mania offers players the chance to play a simple, space themed slot at a generous RTP of 97.7%. Plus, the slot features a free spin round, plus wild symbols on reels 2, 3 and 4.

Star Mania is available at PlayOJO at it’s maximum RTP setting.

#4 Rambo: 97.6%

Rambo was released by iSoftBet back in 2014. Indeed, the slot is based on the hit movie franchise, featuring moving images from the movie. Plus, the bonus round offers up to 12 free spins which can be retriggered. As if that wasn’t enough, this slot also features a progressive jackpot.

With an incredible return to player of 97.6%, this is the highest RTP ever featured in a branded slot.

#5 Gluck’s Joker RTP: 97.6%

Glucks Joker takes fifth place in our Highest RTP slots of 2021 list. A classic slot with one pay line, Glucks Joker is fast-paced, volatile and feature-rich. In fact, the RTP comes in at a very generous 97.6%, meaning there is just 2.4% of a house edge. This slot is very popular in Germany and other markets alike.


#6 Sugar Pop RTP 97.6%

The only thing more addictive than sugar is the Sugar Pop slot! This immersive, visually stunning slot offers a massive RTP of 97.6%! Developed by BetSoft, players will recognise the 3D graphics and bright, smooth candy symbols. This slot has 243 ways to win and some great win potential.

Phsycho Candies 97.5%

Big Bad Wolf 97.3%

Chaos Crew: 97.3%

Machine Gun Unicorn: 97.2%

Mirror Magic

Genie Jackpots Megaways

Jack Hammer 2 97.1%

Treasure Island 97.1%

Secrets of Atlantis

Wild Swarm

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