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Newly updated November 2020

Castle Builder Slot by Microgaming

Top Rated Microgaming Casino
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New Customers Only. 100% Deposit Match up to £300. Min deposit £10. 50x Wagering applies to the Bonus + Deposit amount, playable on selected slots only. Bonuses must be accepted within 72 hours and are valid for 30 days and wagering requirement must be completed in this time. Bonus amount can't be withdrawn. Max bet restrictions apply. Not all games contribute equally to wagering requirements. Deposits made with Neteller and Skrill are not valid for this promotion. 18+ begambleaware.org. Full T&C apply.

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Intro

Castle Builder is a Rabcat slot game released in 2014. The unique gameplay means players not only spin to win but also, as the title suggests, build castles as the reels spin.

Players will find themselves in a time period where there were still kings who ruled the land and married off their daughters to princes. There are 10 symbols in this game which include the 2 princesses, a king, the architect and building blocks for your castle.

Are you ready to get started building your castle? If you want to enjoy playing a low to medium variance slot game with a unique bonus feature, then this could be the game for you. Carry on reading to learn more about this slot game and the best online casino to play it at.

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TopRatedCasinos.co.uk is dedicated to helping customers find the best place to play online. Your safety and well-being is a priority, which is why all of our expert casino reviews are 100% honest and unbiased, and we highlight the key terms and conditions of every casino bonus we advertise. Whilst we accept commission from the casinos on our list of recommendations, and this may affect where they’re positioned on our lists, we only recommend casinos that we truly believe are safe and fair. Of course, we can’t rate and review every casino site, but we do make sure that only the best UK-licensed casinos make it onto our lists.

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Screenshots

Gameplay, RTP and variance

7/10

This 5 reel slot game features 15 paylines and you can look forward to the unique castle builder feature. To get started playing this game, you will need to set your bet which can range between as little as 15p and £15 per spin, making this a game suitable for players on every budget.

Castle Builder has an RTP of 96.47% which is on the higher end of the scale when compared to other online slot games. This is a low to medium variance game, so you can look forward to lots of frequent wins, however, they won’t be very large.

The maximum win in the base game is 20,000x your stake and you can achieve this by landing 5 of the architect wild symbols.

If you want to quicken your gameplay, you can do so using the autoplay feature. This allows you to set your bet per spin and the number of spins you want, then let the game play automatically.

Paytable

 

Symbol Number of symbols Win (x stake)
Princess 10 5 10.00
4 5.00
3 3.00
2 2.00
Prince J 5 50.00
4 10.00
3 5.00
2 3.00
Princess Q 5 75.00
4 25.00
3 8.00
2 4.00
King K 5 100.00
4 50.00
3 8.00
2 5.00
Money Pouch 5 250.00
4 50.00
3 10.00
Jewellery Box 5 500.00
4 100.00
3 15.00
Gold Treasure Chest 5 1000
4 200
3 25
Castle Doors 5 20000
4 2000
3 200
Castle Architect  5 20000

Bonus features

7/10

There are 2 special features in Castle Builder – a wild symbol and the Castle Construction feature.

The wild symbol in Castle Builder is the architect and this will replace other symbols on the reels to create new winning combinations and award big cash prizes.

The main feature in Castle Builder is the Castle Construction feature. If you land 2 or more symbols featuring building materials on an active payline, this feature will be triggered. The more building material symbols you land the more value blocks you will be awarded.

Two building blocks award the standard value blocks, three awards bronze value blocks, four awards silver value block and five awards gold value blocks. You will want to get the most valuable blocks available as this will make your castle worth more once it is finished. To the side of your reels, you will see your castle being built with the blocks you have created.

Once you have completed a castle, a princess will move in with her prince and you will be awarded a cash prize after a picking game. The better the building blocks value, the bigger this prize will be. Once you have received your prize, you will then move on to the next plot of land and start building another castle to repeat the process all over again.

Mobile and tablet experience

8/10

Enjoy spinning the reels of Castle Builder from the palm of your hand on your Android or Apple mobile or tablet device. You can expect the same bonuses, graphics and gameplay whether you play on desktop or mobile.

Design, graphics and sound

7/10

Castle Builder is a Rabcat slot game that was released back in 2014 and so, as you would expect from an older game, the graphics are a little outdated when compared with the high a spec slot games hitting the market. However, considering the time passed since the release, the graphics are still good and players will find themselves in a world of kings, princesses, princes and castles. The overall theme of this game is a king marrying off his princess daughters. To the side of your reels is the castle that you are building with a lovely green landscape and mountains in the background. The reels are encased in stone and all the symbols work perfectly with the game as you will find the building materials needed for the bonus feature, two princesses, a king, a prince, a gold chest, a jewellery box and more. Dreamy choir music plays in the background as you spin the reels which works nicely with the fantasy element of this game.

Questions and answers

  • What bonus features are in Castle Builder?

    Castle Builder is quite a simple slot game, so you will only find a wild symbol and the castle construction feature where you will spin the reels to collect building materials and build the castle to the side of your reels. Once completed, you will be awarded a big cash prize.

  • If I enjoyed playing Castle Builder, what other slot games will I like?

    If you enjoyed playing Castle Builder, there are other slot games that you will enjoy playing with a similar theme. This includes slot games such as Wizards Castle and Fortune Castle.

  • Is there a sequel to Castle Builder?

    Yes, there is a sequel to Castle Builder. As the first game was a big success, there is now also a Castle Builder II slot game to spin.

Summary

Castle Builder is a slightly older game in the Rabcat library, but it does offer a unique bonus feature that you won’t find anywhere. The castle construction feature is the real highlight of this game and provides an extra fun element in building the castles. The graphics are not the highest quality but they are still okay and doesn’t detract from the fun gameplay. This will be a great choice of slot game for anyone who is looking to play something with a unique take on slots gameplay.

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