Released: 8 Nov 2022

True crime documentaries are not everyone's cup of tea, but for many people, myself included, they are very intriguing. This is especially true when it comes to the ones about serial killers. Exploring their minds and ways of thinking can be challenging, but it can be fascinating nonetheless. Because of this, I was very excited to check out Nolimit City's latest release - the Serial slot. Unique themes and fitting visuals are what this provider is known for, plus this game comes with a maximum win potential of up to 74,800x the stake.

Serial Slot

Serial Slot Review

As I mentioned, this provider is known for its eccentric games, including the unforgettable Mental slot, and this new release undoubtedly has a similar atmosphere. Spiced up with Respins, Enhancer Cells, xSplit Wilds, xBizarre, The Search, the Kill, and more, there is certainly a lot to look forward to Read my in-depth review to learn more.

Table of Contents 

  1. About Serial Slot
  2. Design, Symbols and Graphics
  3. RTP, Variance and Payouts
  4. Gameplay and Features
  5. SlotsWise Verdict

About Serial Slot

Those familiar with this provider know that Nolimity City is not a fan of simplicity. Unique and complex layouts are its forte, which I also encountered in the Serial slot. Even though the grid starts with a standard size of 3 rows and 5 reels, it can expand throughout the game. 

Moreover, since wins require matching symbols on at least three successive reels from left to right, the game offers a minimum of 243 ways to win. However, as the layout increases, so will the number of paylines.

The developers have also ensured that the game is inclusive to high rollers and those who prefer smaller stakes. There are optimal betting options that range from £0.20 and £100 per spin.

Design, Symbols and Graphics

A morbid atmosphere has become a standard for this provider's games, which is undoubtedly true for the Serial slot. A dirty and bloody public toilet is depicted in the backdrop, which matches the gory theme. The animation style and the graphics are great, which is to be expected from this provider, and they made my experience much more immersive.

From my experience, the Nolimit City developers rarely use classical card royals as symbols, which is also the case here. The low-paying symbols are presented as different pieces of evidence - a hard hat, a shovel, gloves, a chainsaw blade, a meat hook, and a human skeleton. 

Serial Slot

These are followed by high-paying character symbols, including a scared woman, a coroner, an agent, and the serial killer Bodycam Butcher, worth 5x the stake for a fully covered payline.

Lastly, there are also a few special symbols, including a petrol can wild, a scatter symbol presented as a Missing Person poster, and the unique xSplit wild. I will explain all of these a bit later in this review.

RTP, Variance and Payouts for Serial Slot

As expected, the game is made with a highly volatile model. Because of it, rewards were less frequent but more valuable during my gameplay. Furthermore, the Serial RTP of 96.07% is a good value around the industry average and is paired with a maximum win potential of up to 74,800x the stake!

You can learn more about these technical terms and how they work in our detailed Variance, Volatility and RTP Guide.

Gameplay and Features on Serial Slot

Like most other Nolimit City games, the Serial slot is enhanced with numerous bonus features and surprises. Let's explore them in more detail and the possibilities they can bring.

Respins Feature

This feature will be triggered each time a winning combination is formed. The participating symbols will remain on the reels while the rest of the symbols spin again. If any new symbols contribute to the winning combination, another respin will be awarded. Moreover, each respin will unlock one of the Enhancer Cells.

Enhancer Cells Feature

Enhancer Cells are located at the top and bottom of the reels, and whenever they unlock, they will reveal one of the following possibilities:

  • xWays - up to 4 matching pay symbols will be revealed, and if 2 scatters hit, they will be transformed into xWays symbols;
  • xNudge Wilds - a wild symbol that will nudge cover the reel, with each nudge increasing the multiplier by x1;
  • Wild - a regular wild symbol;
  • Character symbol - one of the character symbols will be revealed.

Serial Slot Feature

xSplit Wilds Feature

These special symbols can only appear on the rightmost reel and have a multiplier of x2. When it lands, it will split all symbols on its row. Different effects can take place depending on the types of symbols that are split.

Infectious xWays Feature

This symbol can transform into a scatter when revealed on the Enhancer Cells. Moreover, when it does, it will infect all the same normal-sized symbols across the reels and increase them to the same size.

The Search Feature

Landing three scatter symbols will trigger this feature, and the sum of the scatter values will be the number of awarded free spins. During the bonus round, the Enhancer Cells on the three middle reels will be unlocked, allowing for 1,125 possible paylines. Managing to land an extra xSplit Wild symbol will activate The Kill feature.

The Kill Feature

This feature is played out similarly to The Search feature, with a small difference. Namely, the xSplit Wild symbol that helped trigger this bonus round will remain on the reels, potentially going up or down on its reel.

Serial Slot Bonus Feature

xBizarre Feature

This is a special feature related to the maximum win potential. I already mentioned that it can reach up to 74,800x the stake, but this feature is the only way to achieve that. Namely, the maximum possible payout during the game is up to 18,700x the stake and achieving that amount will activate this feature.

A special gamble concept with three rounds will begin. Guessing all three rounds correctly will deliver 74,800x the stake, but guessing incorrectly will result in losing the entire prize.

Nolimit Bonus Feature

The Nolimit Bonus feature is not available in the UK, but it consists of several options for players to enter the bonus round directly. Activating The Search, The Kill, and a random draw is worth 78x, 480x, or 279x the stake, respectively.

Other Nolimit City Slots

As one of the industry's most unique and eccentric providers, there is always something exciting to look forward to in Nolimit City's portfolio. You can check out a great selection of its games here on SlotsWise, including the popular Remember Gulag slot, the Karen Maneater slot, and the Folsom Prison slot.

SlotsWise Verdict

As I expected before starting the game, the developers did not disappoint with the Serial slot. It offers a truly unique experience thanks to the unusual and controversial theme, and it had me at the edge of my seat. The visuals perfectly convey the theme, and there are excellent graphics to back them up.

Furthermore, the gameplay is engaging and thrilling, with numerous bonus features to keep things interesting. It includes the stape 'X' features that may drastically affect the layout and the possibilities. There is a good RTP value and a maximum win potential of up to 74,800x the stake, so if you like such themes, I recommend checking it out first-hand.

Discover the Serial slot by claiming a welcome offer right from this page and play at top-rated online casinos.

Want great offers sent straight to your inbox?

Enter your email below and we’ll do all the hard work for you

Welcome to our Mailing List

Keep a look out for our emails containing great offers!