Under Construction Slot Machine Online

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About Under Construction Slot

The "Under Construction" by Booming Games, released on the 15th of June, 2014, will open the inside constructional world to users. The unusual storyline of the online slot from Booming Games is complemented by a huge set of functional features that act as a complement to the Free spins and are chosen by the player himself. Most of the time, participants in the "Under Construction" slots will spend on an imaginary construction platform of drums and thematic symbols. When images of construction tools or card suits form lines, the slot calculates the winnings according to the established schedules. As for additional opportunities, a special pair of names is responsible for them:

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  • Wild – wild substitutes for others;
  • Bonus – ring activates the bonus.

In order the “Under Construction” slot can bring winnings, it is necessary to choose the optimal strategy. This will help indicators of theoretical return and the level of volatility.

Interesting Features

“Under Construction” slot is a game where the users will have an additional bet that increases the total amount by + 25%, so that the number of attempts to select functions will not be 3, but 4. In addition, there is an option to improve the characteristics of the “Under Construction” slot machine provides for the occasional appearance of wild symbols. The Random Wild ticket guarantees participants 1 to 2 substitutes per round of Free spins. Another function of wild fixes a universal substitute on the central cell is 2, 3 or 4 reels online slot. The last variety of jokers makes from one name a universal substitute for the entire period of free spin. As Extra Wild can act any pictures. The next function of the bonus mode that “Under Construction” provides, can be the improvement of the structure of expensive symbols, which changes from single to connecting for all free spins. Finish the set of prize features traditional multipliers, which multiply the sum of earned winnings by x3. The multiplier value remains fixed for the whole period.

How to Play & Real Money Versions

“Under Construction” provides paid sequences which are formed by not less than three identical elements, lined up from left to right on one of the active lines. If there are four or five icons in the chain, the maximum option for that position is taken into account. When calculating payments, two parameters are taken into account: the coefficient of the combination received (from x5 to x200) and the bet for the line. They multiply. If there are several wins, the money is summed up. If the chains are formed in consecutive spins, the additional factor increases. It is also used in calculations. There is no round for doubling in “Under Construction” slot.

Lines & Reel Strips

The “Under Construction” slot machine consists of five rotating drums. The columns are arranged in three characters. They line up in three rows. The game is played on twenty-five fixed lines. The bet on the strip varies from one cent to five euros (0.15 – 75 euros per spin). Ten typical pictures are available in the “Under Construction” slot, a system of additional multipliers, jokers with special abilities, free-spins with bonuses and other prizes.

Bonus Rounds

Bonus mode of the “Under Construction” slot machine opens with a special combination of activators, the duration of which determines the number of rounds:

  • x3 Bonus – 7 FS;
  • x4 Bonus – 15 FS;
  • x5 Bonus – 30 FS.

Before the start of the draws, pay attention to the tips that the Booming Games developers left to the casino players: how to select add-ons, which will include the above specifications or Extra Free spins for 2 or 5 rounds. The second way to start the Free spins mode is the Poster Game, where participants select posters to win prizes of 20-80 coins or passes to free spin. You can get this right through a combination of x2 activators on any slot cells.

Variations of this slot

Before real money gambling it is better to test the slot in demo mode. “Under Construction” video slot is also offered in the version for mobile casinos. Open it in the adapted interface on smartphones and tablets. Supports any modern devices on the main operating systems.

Rules and features

As the basic pictures in “Under Construction” slots game are all the necessary building accessories and the values of playing cards. Special characters are also available:

  • Wild (construction helmet) – it is able to replace the basic pictures in the chains. It also starts a bonus round;
  • Free spins (drill) starts free rotation. They start when three scatters are in any cells.

Detailed information about the pictures you will find in the table. Manual play rounds begin with a round button on the right. Autogame settings are reduced to selecting the number of spins. The basic parameters are limited by the choice of window sizes and mute. The “Under Construction” slot is opened in the browser, so you do not need to download it. The paytable and reference section are published in one window with a scroll bar.


You will like the colorful design and catchy animation effects, but the main advantage of the “Under Construction” slot is the variety of functions. There are often formed combinations, there are multipliers, interesting bonuses begin. And the most attractive option was the free-spins with very favorable conditions. The level of variance is low, and the return rate is average.

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