What Online Slot Machines Have the Highest RTP?

You should stick to high RTP slots online if you want to enjoy slot machines without giving the casino too much of an edge. The best games you can find usually return over 97% to the players, compared to around 95-6% on average. That makes a huge difference in the long run!

In this guide, I break down the five highest RTP online slots available to US players. I explore their features and let you know where to find them! Let’s start with a quick overview.

Best RTP Slots Online: Summary

The following titles are the best RTP slots online we could find:

The Curious Machine

The first spot on my list of the best RTP slots online is The Curious Machine from Betsoft. This slot game does not have a jackpot, but it still boasts an exciting theme and an RTP of 97.50%! It is a steampunk-themed slot game that has 30 adjustable paylines.

You can also increase your bet level in The Curious Machine, allowing you to wager up to five coins per spin. This creates a maximum bet of $60 per spin. 

The vortex wild symbol can substitute for most symbols in the game. Also, this special symbol will rearrange symbols on surrounding reels and potentially create additional wins. When there are no winning combinations, you have a chance to trigger the second chance feature for one free respin.

The Curious Machine includes other exciting bonus features as well. You can win free spins with up to a 5x multiplier. There is also a double-up feature available after any winning spin.

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Aztec Warrior

Aztec Warrior is also among the highest RTP slots online. It was created by Dragon Gaming and has an RTP of 97.50%. Also, it is one of the best medium-volatility slot games available online. 

The key to big wins in Aztec Warrior are the multiple bonus features. For instance, you can win up to 12 free spins with the Aztec Sun special symbol. There are also special symbols that can expand to cover the entire reel.

You have a chance to increase your winnings after every successful spin. The gamble feature offers the chance to double your winnings if you can guess the color of the next card from the deck. This slot has 10 fixed paylines and uses a 5×3 grid.

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Gems Gala Spin & Lock

Up next is another Dragon Gaming slot, a game titled Gems Gala Spin & Lock. This high-class slot game has an RTP of 97.45%. In addition to having a high RTP, this slot is one of the top high-volatility slot machines.

There are four fixed jackpot prizes up for grabs in Gems Gala Spin & Lock. The prizes are tied to your stake amount, with the biggest prize, the grand jackpot, offering a 5,000x multiplier. You can wager up to $100 per spin, allowing for a maximum grand jackpot of $500,000!

Gems Gala includes two special bonus features tied to the scatter symbol. You can choose between free spins or a bonus game with the lock-in feature activated. The Spin & Lock feature is also available and is your path to winning a jackpot prize.

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Quest to the West

Rounding out my list of the highest RTP online slot games is Quest to the West. This Chinese-themed title has an RTP of 97.53%, the highest of any game on my list. There are plenty of exciting bonus features in this slot game.

The Monkey King Walking Wilds, for instance, stay on the board for multiple spins, moving one reel to the left after each spin. These unique wilds can also trigger the Quest to the West bonus round, after which the game is named.

In this bonus round, you are awarded a set amount of free spins. You can earn more when Walking Wilds appear on the board. As long as there are wilds on the board, the feature will continue.

There is also a feature called the Meter of the Heavens, which fills during the base game. When it is full, the meter triggers a bonus round that offers up to a 1,000x multiplier.

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