Casino Lab Payout Percentage and RTP Explained

What payout percentage means

Payout percentage is a long-run average, nothing more. A slot set to 96% RTP pays back £96 for every £100 staked across millions of spins, keeping £4 as the house edge. That £4 is not a fee you feel on any single bet. It is spread thin across a huge sample of results.

The word "average" does the heavy lifting here. Over a single evening you might win £300 on a £96 game or lose your whole £100 in ten minutes. Both outcomes are normal. RTP only describes what happens when the sample grows enormous, far larger than one player could ever produce alone.

Two numbers shape how a slot behaves: RTP and volatility. RTP tells you the return rate. Volatility tells you how bumpy the road there is. A low-volatility game at 96% drips small wins often. A high-volatility game at the same 96% stays quiet for long stretches, then pays big. Same payout percentage, wildly different sessions.

At Casino Lab the RTP is fixed by the studio that built the game, not by the operator. BGaming, Yggdrasil and the other providers set the maths, get it certified, then supply the finished title. Because the site holds a UK Gambling Commission licence, the games it offers must run the tested, certified version of that maths rather than a quietly altered copy.

How to check a game's RTP

You never have to guess the number. Every slot carries it in the rules, and finding it takes seconds.

Open the game inside Casino Lab, then look for the menu button, usually three lines or a small gear in a corner of the screen. Tap it and choose "Game rules", "Info" or "Paytable". Scroll to the bottom section. The RTP is stated there in plain text, often as "The theoretical return to player is 96.20%" or a short table if the game runs several versions.

That last point matters. Some titles ship with more than one configurable RTP, and operators pick which build to load. A game listed at 96.5% by the studio might run at 94% somewhere else. Reading the number inside the actual game, on this actual site, tells you what you are really playing rather than the marketing figure from a database.

Live tables work differently. Roulette and blackjack do not print an RTP label, so you calculate it from the rules. European roulette with a single zero returns 97.30%. American roulette with two zeros drops to 94.74%. Blackjack swings on the specific rules at the table, but a standard shoe with basic strategy lands near 99.5%. The maths is public and fixed, even without a printed percentage.

A quick habit worth building:

• Check the RTP before your first spin, not after a losing streak.
• Compare two versions of the same game if both appear in the lobby.
• Treat any title that hides its number as a reason to move on.

Casino Lab keeps the rules panel accessible on both desktop and mobile, so the figure travels with the game wherever you open it.

Payout vs house edge

Payout percentage and house edge are the same coin, read from opposite sides. Add them and you always reach 100%.

A game at 96% RTP carries a 4% house edge. A game at 98% carries 2%. The house edge is simply the slice the site expects to keep, and it is the reason a casino can run a business while still paying winners every day. Nothing shady about it. The number is disclosed, certified and consistent.

Here is why the gap between two RTPs is bigger than it looks. Play £100 through a 96% game and the expected cost is £4. Play the same £100 through a 94% game and it is £6. That is a 50% jump in what the house takes, hidden inside a two-point difference that most players skim past. Over hundreds of sessions the choice of game compounds hard.

The house edge also explains why bonuses come with wagering. Casino Lab offers a welcome package of 100% up to £1,000 + 100 FS, with x40 wagering on the bonus and a lower x30 on the third deposit. That wagering requirement exists because the site knows its edge will, on average, recover part of the bonus as you play through it. Higher-RTP slots clear wagering more cheaply, since less of your turnover leaks to the house on the way.

One caution. A high payout percentage does not mean you will win. It means the game costs you less to play over a long run. The edge is always positive for the site, on every title, which is exactly why bankroll limits and honest expectations matter more than chasing the top RTP in the lobby.

Average RTP by game type

Return rates cluster by category. Slots vary the most because studios deliberately design across a wide band, while table games sit tighter because their maths is dictated by fixed rules. The table below shows typical ranges you will meet across the Casino Lab library.

Read the ranges as guidance, not guarantees. A single high-volatility slot can run cold for an hour while sitting on a 96% label, and a lucky spin on a 94% game can still clear your bankroll target. The category average tells you where the long-run maths leans, which is the part you can actually plan around.

Slots from BGaming, Yggdrasil, Thunderkick, Spinomenal and Platipus mostly land in the 94% to 97.5% band, and the exact figure is printed inside each game. If you want the smallest edge on the whole site, the table games near the top of this list beat almost every slot on paper, provided you play them by the correct strategy.

FAQ

Once you can read a payout percentage, the rest of your due diligence gets easier. Check how the welcome bonus wagering interacts with RTP, review the payment methods and limits before you deposit, and if a dispute ever arises, our guide to handling complaints covers the steps. Back to the Casino Lab review for the full picture.