Professor BigWin

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Rules and Gameplay

Embark on an intriguing journey with Professor BigWin, a slot that offers a 5×4 reel experience set within a mad scientist’s lab. The game features 40 paylines and allows for bets ranging from $0.40 to $120 per spin. Players initiate spins manually or use the autoplay function for continuous action. Winning combinations are formed by matching three or more symbols on a payline, starting from the leftmost reel to the right. The game’s design is both engaging and user-friendly, catering to both seasoned and new players.

Bonus Features

Professor BigWin is laden with captivating bonus features to enhance gameplay:

  • Mystery Replacement Feature: This feature randomly replaces symbols on the reels at the start of each spin, increasing the likelihood of a win.
  • Replicating Reels Feature: Activated randomly or by landing two Electric Scatters, this feature synchronizes reels to boost winning chances.
  • Free Spins: Landing full stacks of Free Games symbols on two or more reels triggers 7 free spins, with the Replicating Reels feature always active.
  • High Voltage Mode: This mode enhances the Free Spins feature by providing additional Free Games symbols.
  • Buy a Bonus: Players can directly enter the Free Spins feature by paying 120x their bet, offering an instant path to potential rewards.


The game’s symbols are intricately designed to align with the quirky science theme:

  • Low-paying symbols are represented by colorful card ranks from Nines to Aces.
  • High-paying symbols include vials, notepads, microscopes, flasks, cash containers, and the professor himself, offering larger payouts.
  • Special symbols such as Wilds, Free Games symbols, and Electric Scatters play crucial roles in triggering the game’s bonus features.


Professor BigWin boasts a dynamic paytable with generous payouts. Here’s an overview of the potential rewards:

Symbol 3x Match 4x Match 5x Match
Professor $1.50 $2.50 $12.50
Microscope $1.00 $2.00 $7.50
Flasks $0.75 $1.50 $5.00


With 40 fixed paylines, Professor BigWin provides ample opportunities for players to form winning combinations across the reels. Paylines work from left to right, and only the highest win per line is paid. This structure adds depth to the game’s strategy, encouraging players to explore different betting patterns.

Pros & Cons

Pros Cons
Innovative Replicating Reels feature Below-average RTP for some configurations
Exciting theme with engaging visuals Limited jackpot compared to some competitors
Multiple betting options catering to various players Visuals could be more polished

Minimum and Maximum Bet

The Professor BigWin slot game caters to a wide range of players with its flexible betting options. Players can start spinning the reels with a minimum bet of $0.40, making it accessible to those on a tighter budget. On the higher end, high rollers can increase the stakes up to a maximum bet of $120 per spin. This broad range ensures that both casual players and those looking to make larger wagers can enjoy the game comfortably.

Game Jackpot

Professor BigWin offers a maximum jackpot of 6,255x the player’s stake, presenting a substantial winning potential. The game features a medium volatility level, balancing the frequency and size of payouts to suit a wide variety of playing styles. Furthermore, the Return to Player (RTP) percentage varies across different configurations, with values of 88.13%, 94.07%, and 95.52%. This RTP range allows players to choose a configuration that best matches their risk tolerance and winning expectations.

About Provider

Atomic Slot Lab, under the creative direction of industry veteran Doug Fallon, is the brain behind Professor BigWin. Known for their commitment to innovation and quality, Atomic Slot Lab has carved out a niche in the competitive online slot market. The studio’s portfolio, including titles like Fairy Dust, Diamond Safari, and Mermaid Pays, showcases their expertise in crafting engaging gameplay and thematic depth. Their dedication to blending artistic themes with cutting-edge technology has positioned Atomic Slot Lab as a notable developer in the gaming industry.

How To Play

  • Begin by setting your bet size using the +/- buttons, with options ranging from $0.40 to $120 per spin.
  • Press the Spin button to start the game and watch the reels turn.
  • For a hands-free experience, activate the Auto Play feature, allowing the reels to spin automatically for a selected number of rounds.
  • Engage Turbo Mode if you prefer a faster gameplay experience, speeding up the spin animation.
  • Winning combinations are formed by matching three or more symbols on any of the 40 paylines, starting from the leftmost reel.
  • Explore the game’s bonus features such as Free Spins, Replicating Reels, and Mystery Replacement for enhanced winning opportunities.
  • Utilize the Buy a Bonus feature for direct access to the Free Spins round if you’re looking for instant action.


Professor BigWin stands out in the crowded online slot market with its unique theme and innovative bonus features. The game’s flexible betting options make it accessible to a broad audience, from casual players to high rollers. While the visuals and RTP could see improvement, the overall gaming experience is solid, thanks to Atomic Slot Lab’s creative approach. The engaging gameplay mechanics, especially the Replicating Reels and Free Spins features, provide plenty of excitement and winning potential. Professor BigWin is a commendable addition to any slot enthusiast’s playlist, offering both fun and the chance for substantial rewards.