Portal Master

(35 votes)
Upload a screenshot and win!
Something wrong with the game? Click here to know more.
Report a problem

Best Online Casinos to Play for Real Money

King Billy Casino King Billy Casino
Welcome Pack €2500 +250 Free Spins
Skol Casino Skol Casino
up to $1300 + 250 Bonus Spins
Casino Cruise Casino Cruise
55 Free Spins + 100% up to $/£/€200 + 200 Free Spins
Vulkan Vegas Vulkan Vegas
Up to CA$/€/$1500 + 150 Free Spins Only the first and the second deposit made within 7 days after the activation of the bonus are taken into account with the offer. Max bonus amount for the first deposit is €300; for the second starting from €15 —€400, for the second starting from €50 — €700. 30x wagering requirements for free spins and 40x for bonuses. The maximum bet allowed when playing with bonus money is of $/C$/€5.

Rules and Gameplay

Portal Master slot game, powered by Mancala Gaming, offers an immersive experience with a 5×4 reel layout and up to 1024 ways to win. Players embark on an interdimensional adventure to a mysterious planet where the Portal Master guides them in unlocking portals to different realms using energy spheres. To start, adjust your bets using the Total Bet +/-, opting for autoplay for a specified number of spins or hitting the spin button for manual play. The game integrates unique mechanics, such as the use of energy spheres for activating bonus features, enhancing the conventional slot experience with a touch of sci-fi fantasy.

Bonus Features

Portal Master slot boasts an array of captivating bonus features designed to enhance gameplay and increase winning potential:

  • Expanding Wilds: The Portal Master symbol serves as an expanding wild, appearing on the central reels and substituting for all symbols except the scatter.
  • Energy Spheres: Players collect Energy Spheres awarded by the Portal Master, which can be used or traded up for more powerful spheres.
  • Scatter Crystals: Scatter Crystals activate in combination with Energy Spheres to transform into regular symbols for more win opportunities.
  • Free Spins: Trading two mid-level spheres for a high-level sphere triggers a random number of free spins, enhancing players’ chances of hitting big wins.


The Portal Master slot is adorned with intricately designed symbols that align with its mystical theme:

  • Portal Master Wild: Acts as an expanding wild, substituting for all symbols except the scatter.
  • Scatter Crystal: Used in conjunction with Energy Spheres to unlock winning opportunities.
  • Energy Spheres: Key to activating and enhancing the game’s features, with three levels of power.


The game offers a variety of payout opportunities, highlighted by its symbols and bonus features. While specific payout amounts vary, the structured paytable and 1024 ways to win ensure players have ample chances to secure impressive rewards. Below is a simplified representation of payout structures for high-value symbols:

Symbol 3 Symbols 4 Symbols 5 Symbols
Portal Master Wild Not applicable Not applicable Expands & awards Energy Sphere
Scatter Crystal Activation with Energy Sphere Activation with Energy Sphere 30x Stake


With up to 1024 paylines, Portal Master slot ensures a plethora of winning combinations for players. The game pays from left to right, offering a dynamic and engaging gameplay experience. Each spin brings the potential for multiple win lines, significantly increasing the chance for substantial rewards and making every spin an exciting prospect in the quest for interdimensional riches.

Pros & Cons

Pros Cons
Unique Energy Spheres feature RTP below average at 95%
Up to 1,024 paylines for diverse winning combinations High volatility may deter some players
Engaging and thematic gameplay with a sci-fi touch Limited jackpot size

Minimum and Maximum Bet

The Portal Master slot accommodates a wide range of players with its inclusive betting range. The minimum bet starts at $0.10, making it accessible for players on a budget, while the maximum bet can go up to $900, catering to high rollers seeking higher stakes and potentially greater wins.

Game Jackpot

The game jackpot offers a maximum payout of 2,500 times the stake, providing an exciting goal for players. Portal Master operates with an RTP (Return to Player) of 95%, which is slightly below the industry average. Combined with its low to medium volatility, the game offers a balanced mix of risk and reward, making wins relatively frequent but keeping the biggest payouts as a challenging, yet achievable target for players.

About Provider

Mancala Gaming is a notable software developer in the online casino industry, known for its innovative approach to slot design and gameplay features. With a focus on engaging themes, high-quality graphics, and unique bonus features, Mancala Gaming has earned a reputation for creating entertaining and visually appealing games that appeal to a wide range of players.

How To Play

  • Set your bets to start your adventure in the mysterious universe of Portal Master.
  • Use the Total Bet +/- buttons to adjust your wager according to your preference.
  • Hit the Spin button to set the reels in motion and embark on your journey.
  • Engage the Autoplay feature for a selected number of automatic spins at the current bet setting.
  • Collect Energy Spheres and use them to unlock special features or trade up for more powerful spheres.
  • Watch for the Portal Master and Scatter Crystal symbols to activate the game’s bonus features.


Portal Master by Mancala Gaming stands out with its distinctive Energy Spheres feature, captivating sci-fi theme, and the potential for substantial payouts across its 1,024 paylines. While the RTP may be slightly below average, the game compensates with its innovative gameplay and the thrill of exploring an outer-space adventure. Ideal for players seeking a slot with a fresh twist and engaging mechanics, Portal Master promises an entertaining experience filled with mystical elements and cosmic wonders.