Cornelius Slot Review (NetEnt)

RTP: 96.04%

Provider: NetEnt

Best casinos: PlayFrank, Casiplay, All British Casino, Fun Casino, Casushi

Cornelius Key Features

RTP: 96.04%

Provider: NetEnt

Volatility: Low

Theme: Cats

Reel style: 5x4

Paylines: 1024

Stakes: £0.20 - £400

Max Win: 1051x


Free Spins

Cash Drop


From NetEnt comes another online slot with 5 reels and a relatively high number of winning ways – 1,024. Cornelius is an enjoyable game with exceptional cartoony graphics and a funny cat story. It has a default RTP that exceeds modern games' average percentage. It offers a few other things available in the best paying slots today.

Don't forget the high maximum bet of $400 and the opportunity to choose from almost 50 betting options. As for the bonus features, you will find a Cash Drop feature, free spins, and a buy feature.

Casinos that offer Cornelius slot sorted by RTP

Up to £200 + 100 Extra Spins!

  • Wagering req. 35x
  • Value/free spin £0.10
  • Offer amount £210
Max bet limitations per spin apply. 35x wagering requirements apply (i.e the bonus x35). Higher wagering requirements may be applied depending on the games played. 18+.T&C apply, See Below.
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100% up to £50 + 50 Spins on Starburst

  • Wagering req. 40x
  • Value/free spin £0.10
  • Offer amount £50
#ad. 18+,, T&Cs Apply

£100 Bonus + 50 Bonus Spins

  • Wagering req. 0x
  • Value/free spin £0.10
  • Offer amount £100
New Players Only. Min. Deposit £20, bonuses to a max of £100 + 50 bonus spins. Wagering bonus 35x. Wagering bonus spins 35x. Winnings must be wagered within 21 days. Max bonus bet £4.
#ad. 18+,, T&Cs Apply

100% up to £250 + 50 Spins on Gold Blitz

  • Wagering req. 40x
  • Value/free spin £0.10
  • Offer amount £250
New players only. 18+ Min deposit £20. Max Bonus £250 & 50 Spins on Game. Wagering requirements apply 40x. Offer valid for 24hr. Spins available for 24 hours after being credited. Promo Code:OLBG100. Valid until 31.12.2024.
#ad. 18+,, T&Cs Apply

100% bonus up to £123

  • Wagering req. 50x
  • Value/free spin £0.10
  • Offer amount £123
Welcome bonus for a new players only | Maximum bonus is 100% up to $/€/£ 123 | Min deposit is $/€/£ 10 | No max cash out | Wagering is 50x bonus | Maximum bet while playing with a bonus is $/€/£ 5 | Eligibility is restricted for a suspected abuse | Skrill and Neteller deposits excluded |
#ad. 18+,, T&Cs Apply

100% Welcome Bonus + 50 Bonus Spins!

  • Wagering req. 40x
  • Value/free spin £0.10
  • Offer amount £55
100% bonus on first deposit up to £50 & 50 Bonus Spins (30 spins on day 1, 10 on day 2, 10 on day 3) for Book of Dead slot only. Min first deposit of £20. Max bonus £50. Max bonus bet £5. Max bonus cash-out £250. 40x wagering requirements. Bonus expiry 30 days. Bonus spins expiry 2 days. Game restrictions apply.
#ad. 18+,, T&Cs Apply

100% up to £100 + Always 10% Cashback!

  • Wagering req. 35x
  • Value/free spin -
  • Offer amount £100
#AD New customers only, min deposit £20, wagering 35x, max bet £5 with bonus funds. Max bonus is 100% up to £100. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction. Full T&C’s apply
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Game Data

Have you ever wondered what cats do when homeowners are away? Thanks to the Cornelius slot, you no longer have to wonder. The humorous theme is not the only thing that attracts players to this title. There are also fun special features like a cash drop feature and free spins that make the game even more exciting.

Besides that, we have other features and options promising a unique experience. If you want to get information about these things, we encourage you to stay on this page and check the unbiased Cornelius slot review we wrote for you.

Cornelius Slot Key Features
Studio NetEnt
Theme  Cats
RTP % 96.04%
Volatility Low
Reel Style 5x4
Paylines 1,024
Stake Range £0.20 - £100
Max Win 1051x
Special Symbols Cash Drop Symbols, Scatters, Up Symbols, Golden Up Symbols, Adder Symbols, Multiplier Symbols
Features Cash Drop Feature, Buy Bonus Feature, Free Spins
Jackpot No Direct Jackpot

Cornelius Expert Review

Theme & Symbols
Bonus Features
Max Win (1051x)
Sounds & Music
RTP (96.04%)

Key Game Features

Theme - Cats

Cornelius is an online slot game dedicated to a unique cat known as Cornelius. This pet is slightly overweight, and this title shows us why. Namely, the cat finds food even if the owners are not around. All in all, it's a humorous story that will put a smile on players' faces.

We like how the visuals mirror the story, especially the regular icons. So, we have the playing card values made as lower-paying symbols and four others, including a photo of Cornelius, as high-paying icons. The latter is also the highest-paying symbol delivering a prize worth up to 40 times the player's bet.


With 5 reels, the Cornelius online slot is a standard title. They all have four rows, so you can always expect four icons per reel. Achieving wins with regular symbols is possible only when players get three to five icons of the same kind on adjacent reels. Also, they must appear on the leftmost reel and continue to the rightmost reel.


This is another title from NetEnt where we have winning ways in place of conventional paylines. So, you can hit winning combinations only when you have identical symbols on three or more adjacent reels. There are 1,024 ways to win here, and they are always active.


You should never base your decision about playing a slot only by looking at its RTP. However, you shouldn't ignore this indicator either. The Return to Player (RTP) percentage can differ in online casinos even for the same game, and Cornelius is not an exception. This is logical because these casinos have the liberty to modify the default RTP.

Regarding Cornelius' RTP, NetEnt created the original game with an RTP of 96.04%. Check our table below if you want to get informed about the RTPs in the most popular casinos featuring this release. In addition, take the casino welcome offers and bonuses like free spins into account.

Casino RTP% Read Review
PlayFrank 96.04%
Read Review
Casiplay 96.04%
Read Review
All British Casino 96.04%
Read Review
Fun Casino 96.04%
Read Review
Casushi 96.04%
Read Review
Millionpot 96.04%
Read Review
LuckLand 96.04%
Read Review

Let's not forget that these are some good places to play Cornelius and other slot games. For a complete list, check the slot sites we recommend.  


Stake Range

With almost 50 betting options provided to its players, Cornelius is one of the champions in this field. Every user can place bets as small as £0.10 and as high as £400 per round, and the maximum bet is one of the highest we've spotted in modern slots.

Max Win

We can't say we are satisfied with the maximum winning cap in this release, but it's fair to say that it's not that low. To be more precise, there's a max win cap of 1,051x your bet. The best way to get the highest reward is to wait to launch the cash drop feature.

Scatter/Free Spins

Like many modern online slots, the Cornelius slot has a round of free spins. Players should wait for three or more Scatter icons anywhere in view in a single spin to activate this round. Don't forget that the Scatters look like Cookie Jars.

It's worth noting that this feature doesn't work like classic free spins. At the start of the bonus, the activating Scatters are transformed into Cash Drop symbols. They will trigger the Cash Drop feature, which we will analyze in the next section. They will also provide a win that matches the total value of the Cash Drop icons.

Each Cash Drop symbol during free spins highlights a random value of 0.1 to 0.5 times the stake. During free spins, the reel positions spin independently. You can hit only Cash Drop icons, Multipliers, Adder icons, Up symbols, and Golden Up symbols.

The Up symbols move one row up with all Cash Drop and Multiplier icons. On the other hand, the Golden Up icon moves to the top free position with the same symbols as before. As for the Adder icons, they feature random values of 0.1 to 0.3 times the stake, and they boost the value of Cash Drop icons before the wins are added to your balance. Lastly, Multipliers multiply the values of Adder and Cash Drop icons by two.

The spin counter returns to the initial three spins whenever players get a new icon on the reels. This feature ends when the Cash Drop feature is over.

Cash Drop Feature

So, most of the Cash Drop feature was described under the Free Spins section. Still, there's another way to activate this rewarding bonus. The plate loaded with cookies is a Cash Drop icon which can appear on any reel. Each Cash Drop symbol has a random value of 0.25 to 3 times the stake in the base game.

Players will launch the Cash Drop feature when they hit three or more Cash Drop icons on the matrix. During this feature, at the end of a spin, including the spin that launched it, a win matching the total value of all Cash Drop icons on the layout is added to the bet way wins.

Players receive three spins that reset whenever users hit at least one new Cash Drop symbol. They move one row down with each spin until they get to the bottom row and are removed at the beginning of the next spin.

Once you use all spins, you will receive the total Cash Drop winnings displayed on the Cash Drop meter.


The Cornelius slot belongs to the category of online slots without direct jackpots. If you want to play a game with a direct jackpot, we advise checking out our list of the best jackpot slot games.

You will not find a direct jackpot in the Cornelius slot.

Play Experience & First Impressions


It took us 5 spins to get the first winning combo at Cornelius and another one after the tenth spin. As expected, you will find more non-winning spins, but the number of winning rounds is decent. Some of the wins we hit were relatively big.

Even though it doesn't state its volatility level, we can say this is a high-volatility game based on the outcomes.

100 Spins Test

100 spins is not a Real Test

We give every slot a 100 spin test to see just what it can do, or not as the case can often be - 100 spins is no reflection of the likelihood of any other 100-spin session, as RTP's are set over many millions and probably billions of spins. So this 100 spin test is just for entertainment and insight purposes

Element Outcome
Session RTP 52.25%
Win Frequency Low
Biggest Base Game Win 6x
Spins to Bonus 23
Bonus Paid 16x on Cash Drop
Time Taken for 100 Spins 6:15

We lost half the 100 spins stake in this test with just 52.25% coming back. Much of this was despite hitting the cash drop bonus round on spin 23, and gaining a 16x win for the effort - 

Only grabbing a 6x base game biggest win 100 spins didn't help either.

The overall win frequency was low despite this being a low volatility slot from NetEnt, but the play was fairly typical.

I have seen videos of the cash drop popping off on this game, but i wouldn't imagine, as is normally the case, that it is a frequent occurrence given it is stated as a low volatility game.

6 minutes to complete the 100 spins with a bonus is pretty quick, so be aware of that - Play safely!

Expert Verdict

A few things make Cornelius different than many other slots. First, we have the unique theme with the funny cat, Cornelius, in the central role. Next, there are the original visuals. Finally, we have the modified free spins round and the cash drop feature with the potential to provide big wins.

My test showed that you can expect fair wins with some luck, and the 100 spins test only triggered one of the bonus features. Overall, this is a successful title by NetEnt that will meet the needs of modern players, I just wish it had been a bit more entertaining on my test spins.

Editorial Team Information

This Cornelius slot review was written by the OLBG Slots Content Team, beginning with Andrej Trajkovski, who has worked in the online gambling industry since 2013, playing and reviewing online slots and casinos daily for the past four years. The review is Fact Checked by William Westerlund, an online casino expert reviewing casinos and slots for over five years, and published by Steve Madgwick, our Editor-In-Chief with over 18 years of experience creating and managing high-quality sports betting and Casino content for OLBG & multiple other publications.


Cornelius Slot FAQ's

  • Does Cornelius slot have a high RTP?

    The Cornelius slot has a theoretical RTP of 96.04%, so it's a bit above the average figures. Some online casinos might offer versions with a higher RTP.

  • What is the maximum stake on Cornelius slot?

    With a maximum stake of £100, Cornelius is offering crazy high spin stakes. Well for me anyway!

  • What is the Max win on Cornelius slot?

    Cornelius has a maximum win of 1051x the user's bet, this is not an untypical amount, but is on the low side in comparison with many new games coming to market, where 3000x or 5000x can be the norm

  • Should I try the Cornelius slot?

    Yes. This online slot comes with everything you need from this type of game – from good bonuses and fun situations to excellent graphics and a solid RTP.

  • What is the volatility of Cornelius slot?

    NetEnt left the information about the volatility of the Cornelius slot undisclosed, but from comments around the reviews, and from the spin test we did, it seems to be low to medium volatility with a lot of below stake wins.

  • Are there free spins in the Cornelius slot?

    You can win a free spins round in Cornelius slot game, but they are not classic free spins. They include the activation of special symbols and a chance to retrigger the mode.

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