What is RTP? In-Depth Guide

What is RTP casino? Return to Player (RTP) refers to the percentage of wagered money an online slot pays back to players as profits over time.

As an example, let’s choose the famous Mega Joker slot, which has a 99% RTP. Theoretically, if you played the game 100 times and spent £100, you would get £99 back as profits. The casino you used would keep the remaining £1.

But being a theoretical estimate, you don’t earn £99 for every £100 you spend on Mega Joker. You could make much less or a lot more money. That’s because it’s not just your £100 that goes toward calculating Mega Joker’s RTP. It’s the millions of pounds spent by thousands of players in the long haul.

So, why does the casino RTP matter? It shows you which games give you the best odds of winning, at least on paper. It also shows you which slots give casinos the biggest advantage (house edge). Of course, you want to play games with the least house edge for the house. Otherwise, the odds will be stacked against you.

How RTP Works: Does it have any benefits?

A slot machine rated at 96% RTP obviously doesn’t work like an 88%RTP machine. The better paying game is programmed to pay out more frequently, sometimes in massive amounts. Again, not only are you more likely to form winning symbols playing well-playing games, but you also profit from in-game features like wilds, scatters, multipliers and free spins.

Wilds substitute regular symbols to form winning paylines. For instance, the wild symbol in Netent’s Starburst game replaces symbols to give you expanding free spins, and real money wins. You can also trigger free spins continuously if the wild reappears subsequently.

Scatter symbols have specific roles in slot machines. They could appear to trigger free spins, wilds or multipliers that increase your wins. In Play’n GO’s Book of Dead, the scatter symbol triggers free spins. By comparison, the scatter in Microgaming’s Thunderstruck II activates multipliers.

Online casinos understand players love high paying slots. Due to that, they tend to award generous bonuses on these games. The best RTP casino will even give you wager free bonuses on a top RTP slot like Wolf Gold or Starburst.

How is RTP Calculated? Can you calculate it?

Casino RTP explained—to calculate a game’s RTP, you would need information about the total amount of money people wagered in that game over some time. You would then divide it by the amount the slot paid back to players and multiply the result by 100.

Most casinos don’t share such data to the public, making it impossible for players to verify a game’s RTP. But lucky for you, gambling regulators like the UKGC and the MGA have access to the data.

Independent auditors like eCOGRA, Thwarte and iTech Labs also get access to data that helps verify the true RTP of games. So, if you play on licensed and publicly audited casinos, you can be confident their games are fair and reflect their stated RTP rates.

Although casinos don’t give out every detail about their slots, they give you bonuses you can use to play the best RTP slots. In many cases, you receive rewards based on the amount of money you deposit. If you deposit £50, you could get £50. If you deposit £500, you could receive a similar amount.

What are the Best RTP Online Slots?

1: Mega Joker—99%

Despite being a classic slot with dated graphics and fruit symbols, Mega Joker pays out more frequently than most slots out there. Surprisingly, you won’t find tons of multipliers, wilds and free spins on this game. It’s a simple game in every way, but it is fun to play and pays out frequently with the few features it has.

2: Ocean Princess—99.1%

Playtech’s Ocean Princess takes you to the depths of the deepest oceans as you interact with a kind mermaid princess. Triggering her crown on five reels earns you up to 1000x your bet. You could also win a random jackpot and free spins while exploring the deep blue world of the princess.

3: Ugga Bugga—99.1%

Ugga Bugga is yet another Playtech slot famous for its incredible RTP. It’s a bit dated based on its graphics but features enough wilds and multipliers to get you tempted to spin its reels. It also shares some likeness to Ocean Princess like the ability to hold symbols the game later converts into wilds. But instead of an ocean theme, it takes you to a jungle where you interact with tribesmen, cooks, and musicians

4: 1429 Uncharted Seas—98.6%

Created by Swedish software provider Thunderkick, 1429 Uncharted Seas is a video slot inspired by life in the 1400s. It doesn’t use actual images on the middle ages, though. Instead, it features simple images like ships and compasses. But by triggering these symbols, you earn free spins, multipliers or a random jackpot worth 1000 times your bet.

5: Jackpot 6000—98.9%

Jackpot 6000 is regularly compared to Mega Joker for many reasons. They both come from Netent. They feature dated graphics, fruit symbols and a near similar RTP. So, if you ever play Mega Joker and feel like you want to play a near-identical game; try Jackpot 6000.

Is a Good RTP Important?

Yes, a good RTP is necessary if you want to start winning slots consistently. The best RTP casino websites provide games with RTP rates of 95% or higher. That means the average game gives the casino a house edge of 5% or less.

As a player, a low house edge means you have good odds of winning a game—which is why you should play a game, anyway. So, if you had taken a break from playing online slots and you are back, pay attention to RTP meaning and casinos with top RTP games.

What else Influences the RTP?

Several factors determine how much and how frequently a casino pays out. We already mentioned in-game features like wilds, scatters and multipliers. But there’s also the issue of a game’s volatility.

Put simply; volatility means how frequently a game pays out. Both Mega Joker and Ugga Bugga, for example, payout often but in small amounts. That means you could hit a win every few bets, but you win small amounts of money.

By comparison, Gonzo’s Quest and Thunderstruck II are medium variance games. That means they pay less frequently than Mega Joker, but they pay out higher amounts. Most experienced players choose medium volatility games when they want to maximize their wins.

The third volatility level is the high variance category. It includes famous progressive jackpots Mega Fortune and Mega Moolah. The latter slot, for instance, has an 88% RTP. That’s because it pays out sparsely but in huge amounts.


RTP refers to the rate at which online slots pays back wagered money to players who win. It’s influenced by several factors like in-game features, multipliers and how often the bonus features hit.

The Return to Player is not the only factor that matters when choosing a game, but it’s highly necessary.

A high RTP game gives you better odds of winning than a low variance game – you may have some sessions where you lose your money, but winning sessions are way more rewarding.

So, if you love to win consistently, choose slots with the best return to player, preferably with medium to high variance.

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