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Game info


  • Free spinsYes
  • MultiplierNo
  • Autoplay optionNo
  • Scatter symbolYes
  • Wild symbolYes
  • ProgressiveNo
  • Bonus roundsNo

Monsterinos, created by software developer Mr Slotty, is game set in the darkest and scariest depth of an underground lair. Hidden in this terrifying environment are an entire family of grotesque monsters waiting to be set free. Each of these having crazy outfits and even crazier personalities. They are here to work in their evil factory to produce even more supernatural creatures, and it is up to the player to spin the 5×3 reels, put a stop to them and win great prizes in the process. In Monsterinos casino slot online, this is where you have a monstrous time.

Symbols and Payouts

When you play Monsterinos slot machine online, there are a total of 25 paylines for the player to win money on. Here are the awards granted for winning combinations made with the minimum bet:

  • The basic tier of symbols are the smaller monsters that roam around the factory through the pipes. The beige headed creature pays the player between 10-50. The monster with the monocle rewards 15-75. The monster with the metal jaw awards 20-150. The thin creature with the straight jacket rewards 25-175;
  • The higher tier of monster icons is found running the factory and are much bigger than the lower levels. The creature with the brown trousers rewards 40-250. The monster with the metal helmet awards the player 75-500. The monster with the purple wires in him awards 200-1,000;
  • The highest paying symbol in the game is the monster with the leather suit. He awards the player up to 2,000. However, the player can only win by landing 5 in a row;
  • The completely robotic monster can give the player bonus free spins, if they land him on the reels. Different amounts of free spins are handed depending on how many are landed.

Rules to Know

To win prizes in this game, you must spin the reels and earn combinations of matching symbols in order to achieve a specific prize. The more of the same you land, the more money you earn. You can play Monsterinos for real money or play the free demo version to practise more. First, you must register with any casinos online and deposit real money to win real prizes. Then deposit the money through the casino’s various payment methods. The minimum amount of money you can bet is $0.01. The maximum amount you can bet is $25.00. The coin value size and the number of coins can be altered. The number of coins is adjacent to the paylines, so 25. The coin value size can be changed from 0.01 to 1.00. RTP is currently unknown.

How to Score More

The best way to get the most out of your money is to aim for the most achievable prizes and jackpots. The ones that offer the best value without too much difficulty is the larger monsters. Trying to aim for them can be more profitable than just going for the smaller ones. The highest reward, while rewarding, can be the most challenging to aim for as you need five in a row to get the prize. The free spins strategy is the best way to maximise profits without having to risk any more money.

Closing Note

Monsterinos is a great game to play that provides a unique and spooky aesthetic when playing the slots. The rules are fairly simple and very easy to learn, allowing all players of varying skill to play. The combinations themselves are easy to remember, and they allow simple strategies to be formed, including aiming for the free spins. The designs of the monsters are very cute with all things considering, allow players with varied tastes in design to be welcomed as well.

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