High RTP Slots and Bonuses

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What is RTP and how does it work?

Short for Return to Player, a slot’s RTP is an important measure of how well it pays back to gamblers in the long term. It’s calculated as a percentage, with the highest RTP being 100%. If you love playing online slots, looking at RTP rates can help you pick games with better odds of winning.

At its core, a game’s return to player rate is a theoretical concept that does not affect gameplay. It does not increase winning streaks or lower losses. Instead, it simply helps players understand the house’s edge better. For example, a slot with a 96% RTP means the house edge is 4%. If a game has a 100% RTP, the house does not have an edge.

What kind of Bonuses do Slots with high RTP Offer?

The best online slots tend to have high RTP rates. From the classics like Blazin’ Hot 7s to video slots like Starburst, jackpot slots like Mega Joker to Megaways like Bonanza—the average RTP for top-rated games is 95%.

Most of these slots come with players’ bonuses in the form of free spins and multipliers for your bets. Free spins are the easiest to acquire. Simply join any modern casino website with bonuses and chances are you’ll be allowed to use the bonuses on slots of your choice.

In addition, slots also feature in-game bonuses. Usually, you’re required to bet with real cash. But as you play and trigger certain symbols, the slot gives you free spins to help extend your gaming time. The number of spins received depends on the exact symbols received.

In a 5-reel basketball themed slot, for example, triggering three basketballs on consecutive reels could earn you 15 free spins. Matching five balls is rewarded with more free spins, maybe 25. Apart from bonus spins, you could also receive bonuses on money bet.

This also works by triggering specific symbols. In the basketball slot example, matching three hoops could trigger a feature to multiply your bet 10 times. So, if you initially bet €2, your wager becomes €20. The amount of money won henceforth is multiplied by 20.

Best Slots with High RTP

Mega Joker

An RTP of 99%, 5 paylines and 9 reels (5X4), Mega Joker is a game of its kind. The game features classic fruit symbols. Its bet sizes can be adjusted and there is a progressive jackpot that runs in the millions of dollars. Betting coin sizes are adjustable from 0.1 to 1 and you can place a maximum of 10 coins per line.

Mega Joker is designed to work like two slots in one. When you place your first bet, the matching symbols appear on the lower reels. The lights flicker continuously while a soundtrack is also activated when you win. The game then asks you whether to withdraw your wins or turn it into play credits for the upper reels. Mega Joker calls this the Super meter. Matching winning symbols on the Super meter attracts bigger wins.

Jackpot 6000

Jackpot 6000 is yet another classic-themed game with the joker and fruits as symbols. Like Mega Joker, the game was developed by NetEnt. It consists of 5 paylines and 3 reels, adjustable coin sizes and a 98.9% RTP.

As its name suggests, the game also comes with a progressive jackpot that cashes out a maximum of 6000 coins. The grand prize is won at random, meaning there are no special strategies for trying to cash it. However, Jackpot 6000 also comes with a super meter where betting sizes are twice as bigger as in the standard playing mode.

1429 Uncharted Seas

1429 is the year in which this high RTP slot game is set. It’s designed by Thunderkick and comes with a 98.6% RTP. Uncharted Seas features 5 reels and 25 paylines. Only a maximum of one coin per line is allowed but you can adjust the coin size from 0.1 to 100.

Triggering the Compass symbol 3, 4 or 5 times earns you 10, 20 or 50 free spins. Matching The Ship symbol leads to a real money win. There is also a progressive jackpot capped at 67,000 coins.

Blood Suckers

If you love horror stories, this might soon become your favorite slot game. Blood Suckers consists of 5 reels and 25 paylines, a 98% RTP and a jackpot limited at 7,500 coins. Coins can be adjusted from 0.01 to 5 and there are 4 maximum coins per line.

The game’s symbols include everything you’d expect from a horror film. A bible and a cross, a blood-sucking vampire, a vampire drinking blood, hammers dripping in blood and more characters that look like they just came back from the dead.


Developed by NextGen, Starmania comprises of 5 reels and 10 pay-lines. The game is inspired by the magnificence of space and features colorful stars as symbols. You can only wager one coin per line but you could adjust the coin size from 0.01 to 2. The game’s jackpot is limited at 500 coins and the overall game has a 97.8% RTP.

Starmania doesn’t come with a Super meter but it features an automatic-play button that activates the game to spin up to 99 times. Every time you win, the game also gives you an option to increase your bet by correctly choosing the colors of certain hidden cards.

Kings of Chicago (97.8% RTP)

Kings of Chicago slot game has inspirations from the card game under the same name. The slot’s symbols are cards and the game plays out like a normal card game. As opposed to reels spinning, an invisible shuffles cards to form winning bets. Matching the joker doubles your bet while triggering scatters earns you 10, 15 or 30 free deals.

How can you calculate RTP?

How does RTP work? Most slots games you’ll come across probably have a known RTP. As such, you don’t have to do the difficult job of calculating a slot’s RTP. But if you’re up to it, the formula is the total amount of cash paid out to players divided by the total amount of money bet. When you multiply the result by 100, you get a percentage of it.

Casinos don’t provide details about how much money is bet in total, so it’s not possible to get the figures and calculate slots RTP rates on your own. Fortunately, the online casino industry has an industry dedicated to auditing games. They source real data from casinos and developers and calculate the RTP independently.

Does RTP really Matter?

We have a whole article about RTP gambling. But does it really matter how much casinos payback to players? Yes, it does. A slot game with a 100% RTP means the house does not have an edge. Casinos operate to make profits though, which is why they keep a small percentage of money won from every game. A high RTP implies less money is kept by the house and more money goes back to players as wins.


RTP refers to return to player and depicts the percentage of money paid to gamblers on average. The best RTP slots tend to be highly popular with players. After all, a high RTP means the house edge is small and players win a lot of times.

Don’t get confused though. Games with high RTP rates don’t always lead to more wins. Your biggest win could come from the least expected game. However, playing on top RTP games increases your odds of winning.

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