Castle Builder Slot Review

Rating: 94 %

The Castle Builder slot is a game from Rabcat and was launched on the market back in 2014. Anyone looking for a castle-building adventure will feel right at home in this exciting slot with lots of building symbols. The Castle Building slot comes with an RTP value of 96.47% and a low to medium volatility. Smaller profits can therefore be expected on a regular basis. Fun animations add to the enjoyment of the game.

Michael Schmitz
Author & Responsibility: Michael Schmitz
Last update: 22. May 2024


Name Castle Builder
Provider Rabcat
Compatibility Desktop, Mobile, Tablet
RTP 96,47 %
Paylines 25
Reels 5
Rows 3
Min bet 0,01
Max bet 50
Max win x20.000
Free Spins
Free Version
Bonus Buy

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Currently no demo available
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Castle Builder: How it works!

Castle Builder is a slot that is mainly intended for casual players. The 5-reel slot offers exciting graphics and innovative features. You build castles in this slot. If you manage to complete a castle, your player rank is increased, which gives you better building symbols. The slot with low to medium volatility is never boring. The RTP value of 96.47% is also presentable.

If you want to go on a construction expedition, the first step is to set the mission. This is possible below the pitch. An autoplay function is also available. You can therefore have the slot rotate automatically to speed up castle construction.

To do this, enter the desired number of spins so that you can sit back, relax and follow the action.

You can also display the payout table. All possible symbols are clearly displayed in the paytable together with their value. So you always have an overview. Winning combinations count from left to right. With 2 symbols you are already in the game and can look forward to a small win.

In the paytable, you will also quickly see that there are no free spins in the game. Your task in the game is to build castles and palaces. There is a production list in which you can see how much you still have to build to complete the castle.

Once the castle is finished, a princess has to move in. There is also a prince that you can choose. It is a true adventure slot with plenty of variety and excitement. A total of 3 medieval environments await you, which also come with different settings and prizes.

Castle Builder winning symbols

The Castle Builder slot is equipped with 8 winning symbols, 1 Wild symbol and 4 Building symbols. There are no card symbols in this game. The buildings are the most important symbols as they are relevant for the bonus rounds. Here we show you how the 8 winning symbols and the Joker are rated.

  • Maid
  • Prince
  • Princess
  • King
  • Money bag
  • Money box
  • Treasure chest
  • Safe
  • Old man (game)


If 2 maid symbols appear in succession on a win line, you receive 20 coins. With 3 symbols, the win increases to 200 coins. With 4 symbols there is a 2,000-fold win. 20,000 coins are even available with 5 coins.


The prince symbol is also rewarded with 20, 200, 2,000 and 20,000 coins. The lowest score is awarded for 2 Prince symbols. You get the highest score with 5 identical symbols.


The princess also earns you 20 coins with 2 symbols. 20,000 coins are credited if 5 symbols appear on a win line. There are also 200 and 2,000 coins in between.


The King symbol is evaluated in the same way as the other symbols. There are therefore 20, 200, 2,000 or 20,000 coins. As usual, the lowest number of coins is awarded when you find 2 King symbols.

Money bag

If 2 money bag symbols appear on a win line, you will receive 20 coins. With 3 symbols, the number of coins increases to 200. With 4 identical symbols, 2,000 coins are added to your player account. If you land 5 symbols, you will receive 20,000 coins.

Money box

All symbols in the Castle Builder slot are evaluated identically. This means that there are also 20, 200, 2,000 or 20,000 coins for the money box. The more money boxes that appear, the better.

Treasure chest

To win with the treasure chest symbol, you need at least 2 symbols on a win line. In this case, you will receive 20 coins. The winnings increase to up to 20,000 coins. This requires 5 symbols on the win line.


If 2 vault symbols appear on a win line in succession from left to right, 20 coins will be added to your player account. With 3 symbols, 200 coins are relevant. Up to 20,000 coins are available with the vault symbol.

Old man (game)

The old man is the game's Wild symbol. The scoring is the same as for the other symbols. On the third reel, the Wild symbol can substitute for other symbols and help to create a winning combination.

Features and special features

Although the Castle Builder slot only has a few features, it is very popular. No free spins are possible. To do this, you should pay attention to the 4 building elements standard, bronze, silver and gold.

  • Building elements for more wealth
  • Finish the castle and receive gifts

Building elements

The building elements of the Castle Builder slot can be seen as a bonus. Depending on which building element is present, building materials are available in different qualities. Your aim is to have only the best building materials available. This also increases the value of your castle or palace.

If your castle is particularly valuable thanks to the building materials, the chosen suitors that are created during the game will also become richer. Ultimately, when the castle is completed, the princess moves into the castle and has to choose a suitor. But you don't know how many coins the different suitors are worth. That is ultimately the surprise effect.

Complete the castle and collect winnings

If you manage to complete a castle, you can look forward to receiving gifts. Sometimes they are small. However, they can also be quite high. Your rank also increases when you have completed a castle. In this case, you can assume that more valuable building symbols will appear more often. Excitement is definitely guaranteed with the building symbols.


Perhaps you would like to play a typical slot that also includes free spins and, above all, symbols with different values. There are several alternatives to the Castle Builder slot. We present 3 Castle Builder alternatives here:

Game of Thrones

Game of Thrones is one of the most popular television series ever. The slot of the same name from Microgaming is also based on this. The slot with an RTP value of 95% offers up to 18 free games, wilds, the gamble game and 243 win lines.

Dragon's Treasure

Dragons Treasure is a slot machine from Merkur that comes with an RTP value of 96%. Free spins, wilds and the risk game determine the gameplay. During the free games, expanding wilds are relevant for more winnings.

King's Treasure

King's Treasure from Novoline is a sparkling slot with crowns, castles and trophies. Up to 30 free spins are possible with the crowns. There is also a progressive jackpot in play, which makes the game even more exciting. If you want, you can also use the risk ladder and increase your winnings.

Play Castle Builder online – our conclusion

The Castle Builder slot is an innovative and excitingly designed game from Rabcat, in which the fun factor is not neglected. You are always busy building exciting castles, selecting suitors and collecting winnings.

You can explore a total of 3 worlds and, with a little luck, win big prizes. Excitement is definitely guaranteed with this slot. The entertaining and varied game is accompanied by low to medium volatility, which means that there can often be small winnings.

However, it is a shame that there are no free spins in this slot. That would certainly be the special extra that many players would want. But it can still be worth starting the building adventure. After all, high profits are possible.

  • Building symbols for higher-value building symbols
  • Gifts when a castle is finished
  • Low to medium volatility
  • No free spins
  • No special additional features


Can I play Castle Builder for free?

You can play the Castle Builder slot in demo mode at the online casino. This means you can play completely free of charge and get to know the game at your leisure. You are always free to switch to real money mode.

Can Castle Builder be played on the go?

Although the game was developed several years ago, you can also play Castle Builder on the go. It works via various mobile devices, so you are flexible and can get started from anywhere.

What are the limits for Castle Builder?

You can play Castle Builder with a minimum bet of 0.01 euros. It is therefore an ideal game for cautious players. You can wager a maximum of €50 if you want to play the Castle Builder slot.

Is Castle Builder also available with the Megaways option?

Megaways slots are very popular with players, which is why there are already many games with the Megaways option. Unfortunately, the Castle Builder slot is not one of the games with this option. At least there is currently no Castle Builder Megaways Slot. Perhaps this will change in the future.

Can I play for real winnings at Castle Builder online casinos?

You can play the Castle Builder slot with real money and win real winnings. To do this, simply switch to real money mode and bet real money. If you collect a win, you can ultimately have it paid out to you.

Which manufacturer is behind Castle Builder?

The Castle Builder slot was developed by Rabcat. This is an Austrian software manufacturer that first became well known through its collaboration with Microgaming.

What is the payout percentage at Castle Builder?

The payout percentage in the Castle Builder slot is 96.47%. This value is in the optimum range. The slot is also a game with low to medium volatility. The chances of smaller winnings are therefore in a comfortable range.

Which streamers play Castle Builder?

There are certainly streamers at national and international level who occasionally play the Castle Builder slot. Streamers such as NickSlots, Roshtein and SlotSpinner are conceivable.

Is Castle Builder a serious game?

Castle Builder can be classified as a serious game. After all, it comes from Rabcat, which cooperates with Microgaming. So you can be pretty sure that the game is absolutely safe and reliable.

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Michael Schmitz

Created by

I met Steven by chance on a trip to Liverpool FC in 2015. He told me what he does for a living and I knew immediately that I wanted to do the same. We stayed in touch for years and finally, a few years ago, he asked me if I wanted to join his new project Here I am!

Last update: 22. May 2024 Logo Advertising transparency

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