expert 9.2
Denis Anipchenko

Expert opinion

It would be no exaggeration to say that free online slot machine developed by Rabcat company are models of a whole new level, which are provided with never seen before features. All of them offer original particularities of the gameplay, as well as interesting design solutions, an incredible animation and much more, due to which video slots of this entry-level producer successfully compete with production of much more famous brands at the online gambling market.

The following review, prepared by the team of casinoz.me, is devoted to another novelty by the developers of Rabcat. It is a magnificent online slot machine named Castle Builder, most of the elements of which remind multi-level computer games. You are going not only to fight for payoffs by the combinations, but also fill orders of kings for building castles, moving to new levels, where conditions are more beneficial and contracts are more generous. 

Type of game Video slots
Manufacturer Rabcat casino
Max bet 15
Progressive jackpot No
Reels number 5
Lines number 15
Wilds Yes
Scatter No
Gamble Feature No
3D slot Yes
Bet line 0.01 - 1

Where to Play Castle Builder slot?

Play Free Castle Builder Slot Demo

You can test Castle Builder slot machine without registration or play it by the real bets in Unibet online casino and some other online casinos, powered by the software developed by Quickfire.

We would be happy to know your opinion about Castle Builder video slot. Please share your response in comments and don't forget to rate this game.

Verified Online casino with Castle Builder slot

How to Play Castle Builder slot online

Castle Builder is a five reeled video slot at screen of which the symbols are located in three rows. Playing this slot machine is possible by any quantity of active lines, up to fifteen available. The acceptable bet per each of the lines is in the following range: 0.01, 0.02, 0.05, 0.10, 0.20, 0.25, 0.50 or 1 euro (in Unibet Casino).

Castle Builder slot machine is provided with a multi-level system of prize payouts, the special symbols and other interesting gaming functions. During the game you would have to build the castle, forming the combinations of the special symbols. When you would manage to finish another building, you would become a participant of the bonus round, during which a reward is guaranteed to you.

To become an owner of the payoff be the combinations, it is necessary to make a chain of the similar symbols at the active line, which has to be started from the first left reel. As usually, the winning is provided only by the highest combination be each line.

An amount of the payoff depends on the bet per line which is multiplied by the combination index, indicated in the table. The maximal of them is x20000. The total winning per round is immediately transferred to the player’s account, because the gambling feature is not provided by the rules.

Please read about exceptions from the rules below. We would make our best to provide you with information about the theoretical cash back index of Castle Builder slot machine later.

Castle Builder Symbols, Wild, Scatter

Different representatives of royal families, as well as boxes with treasures, bags with golden coins, gates, locked by a large locker, a builder of castles (Wild symbol) and the special symbols with images of construction materials are images at the reels of Castle Builder video slot.

Wild is paid out on its own by the general rules and can replace other symbols except of materials when it is necessary.

Construction materials can be standard, bronze, silver or golden. In case two and more such symbols form the combination at the active line, building of the castle moves forward for several steps. As soon as you finish work under construction, you are going to take part in the bonus round of Castle Builder. The rest materials, which were not used, are moving to the following level.

Castle Builder Bonus games

The bonus round of Castle Builder slot machine is quite simple. You would only have to select a couple for prince or princess. You choice affects which of three amount, collected during the building, becomes yours. You can also get an additional prize from satisfied customer. Moreover, as soon as you finish another task, you become an owner of a higher title, which gives you different advantages.

Jackpots

A progressive jackpot is not raffled in Castle Builder video slot.

Castle Builder Interface

Castle Builder model is provided with a quality multi-language interface, that’s why we wouldn't stop on detailed description of the buttons, imaged at the control panel.

The reels are situated in the right part of the screen. The castles, which you would have to build are situated in the left part. When you move to a new level, you would see a map and task by the king.

There is a range of user’s settings in Castle Builder slot machine, such as sound, speed of the game and etc. It is possible to activate an automatic game mode.

The short rules and combination indexes are indicated in the table. All the details are carefully explained in the informational section, which is available at the special tab.

You don’t need to download Castle Builder slot machine, because you can launch it right in a browser in a flash mode.

New Rabcat slots
Other online slot machines

Should You Play Castle Builder Slot for Real Money?

Definitely, a multi-level system of the gameplay, realized in Castle Builder video slot, makes the gameplay extremely executing even in a flash mode. However, if you start playing for the real money, please don’t forget to control the balance. Otherwise you risk to lose the whole bankroll wishing to build another castle (actually, it is the aim of the developers of this model).

Anyway, it is an incredible model with amazing functions, graphics, interface and background music. Moreover, it is provided with a multi-language interface and can be launched without downloading and installation of the client software.

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Type of game Video slots
Manufacturer Rabcat casino
Max bet 15
Progressive jackpot No
Reels number 5
Lines number 15
Wilds Yes
Scatter No
Gamble Feature No
3D slot Yes
Bet line 0.01 - 1