Introduction to Dr. Brainfart
Dr. Brainfart is a casino slot from Slotmill, where an unhinged scientist works on a new formula for big wins. With a name like that, it may be a bit hard to put trust in him, as a laboratory full of explosive ingredients is not a place to be careless and absent-minded. Still, some inventions in human history are a product of coincidence, so maybe a max win of 15,000x the bet can be the lucky outcome of all these scientific trials. If you're willing to give the eccentric doctor a chance, step into his mysterious workshop in the middle of a modern city and put the 6x6, scatter-paying grid to work. With each winning combination, the progressive multiplier doubles, boosting any payouts you achieve during the avalanche sequence within the same round. To make the reactions stronger, Giant symbols sized 2x2 or 3x3 can also occasionally drop in, while the powerful Xcelerate overlay can charge regular symbols so that they can remove up to 4 upcoming multiplier values from the meter. Free Spins introduce a Multiplier Lock symbol, which saves the achieved multiplier as the reset value for all subsequent spins.
Theme, Gameplay & Payouts
Dr. Brainfart is a video slot from Slotmill with 6 reels, 6 rows, and a scatter-pays win system, requiring 8 or more matching symbols to land anywhere in view. The range of available betting options starts from a Min.bet of 0.20 and goes all the way up to a Max.bet of 100. You can increase that value further by using the Xtra Bet feature, bringing it up to 150. The game offers a default RTP of 96.07%, which is on the lower end of the industry average. Additionally, there is one alternative variant of 94.08% also available for operators, so be sure to check your version before playing. You can expect higher wins to be further apart but more valuable on average when you score a hit due to high volatility, while the max win achievable in a single round is 15,000x the bet.
Dr. Brainfart's headquarters hide in plain sight among high-rise buildings of a modern city. Through the windows of his lab, you can see a skyline with pointy spires, glass facades, and massive concrete blocks. Inside the workshop, walls are lined with various consoles, with switches, levers, dials, and gauges of all kinds fitted into steel tables. The host stands next to the grid, grinning manically in his odd outfit featuring a Hawaiian shirt, red shorts, and a lab coat. The quirky atmosphere is further elevated by cartoon graphics resembling adult animated TV series, such as Rick & Morty, along with a chaotic, energetic soundtrack. Thanks to the game's universal, responsive design, you can join in on the experiments from any modern device, whether you play on a PC, a smartphone, or a tablet.
In the paytable, you'll find regular symbols split into two categories. Regardless of the hierarchy, to achieve a win, you'll need to land at least 8 matching ones anywhere in view. The low-paying icons are represented by blue, green, red, and purple gems, which award 3x the bet for matching 16 or more on the grid. A mechanical foot, a futuristic gun, a mechanical arm, and a jet pack represent the high-paying symbols, which bring payouts of between 5.5x and 8x the bet when you form a set containing 16+ instances. At the top of the hierarchy is the doctor's portrait, paying 10x the bet for a collection of 16+ units simultaneously on the screen. In addition, there are Bonus symbols appearing as a green container.
Special Features & Slot Mechanics
What is the max win in the slot Dr. Brainfart?
You can win up to 15,000x the bet.
What features are available in the slot Dr. Brainfart?
The features are Cascading & Multiplier, Special Symbols, Free Spins, and Feature Buy (Fast Track).
Cascading & Multiplier
Within the cascading mechanism, you'll have a chance to score multiple consecutive wins within a single game round. Every initial combination is removed from the grid, causing the remaining symbols to drop and new ones to populate the board. This can potentially lead to more hits, thus extending the sequence until no new combinations can be formed. Each cascade within the same sequence also doubles the active progressive win multiplier, which applies to all achieved wins.
Special Symbols
Regular symbols can appear in a 2x2 or 3x3 size, acting as 4 or 9 individual clustered symbols. Each regular icon can also land with an Xcelerate overlay indicated by electricity. Scoring a win with such a symbol removes a random multiplier from the next four available values. Multiplier Lock appears only during the bonus round, and it locks the achieved multiplier as the reset point for subsequent spins.
Free Spins
Scoring 3, 4, or 5 Scatters in the same main game round awards 8, 10, or 12 Free Spins, respectively. If one of the Scatters is a Super Scatter, then an enhanced mode is triggered. In both variants, the multiplier resets to the value established by the Multiplier Lock symbol and any multiplier removals are persistent between spins. In the Super mode, a Giant symbol is guaranteed on every spin.
Feature Buy (Fast Track)
Like most games from Slotmill, Dr. Brainfart comes with a Fast Track menu containing several options to trigger features and bonuses for a fixed price.
1.5x = Xtra-Bet, with a 2.8 times higher chance to trigger Free Spins.
7x = Super Xtra-Bet, with a higher chance to trigger Super Free Spins.
40x = boosts the multiplier meter to a random value.
100x = Regular Free Spins.
300x = Super Free Spins.
Final Thoughts on Dr. Brainfart
Progressive multipliers increasing with consecutive avalanches are a format widely known in online slots, especially thanks to Yggdrasil's DoubleMax feature, which popularised it quite intensely. Many studios adapted it in various forms to their games, given its straightforward yet powerful nature, relying on exponential growth. Slotmill has dabbled in the formula more than once before in releases like Emberfall and Dark Forge. In fact, Dr. Brainfart feels very much like the first one, with a slightly different method of delivery regarding increased multiplier values and a slightly different approach to persistence during Free Spins. Plus, obviously, there's a much lighter and quirkier theme, which is the complete opposite of the dark fantasy settings mentioned above.
Scatter-pays and the multiplier doubling on every avalanche are the common denominator, as are the Giant symbols, although this time limited only to 3x3 in size. This time, instead of randomly activating a multiplier boost that advances the meter by a few steps, you must score a win on a regular symbol marked with the Xcelerator overlay. Also, doing so doesn't directly increase the multiplier but removes one of the four upcoming values. Depending on how many positions show such a highlight, it may feel like discarding a bunch of multipliers is always within reach, but it's always contingent on scoring standard combinations. Then, there are Free Spins, which, instead of keeping the multiplier persistent between rounds, reset it to the value set by the Multiplier Lock. However, any discarded figures do not reappear in the meter, which makes achieving higher values theoretically easier. Whether that's better or worse than the classic persistence, it's undoubtedly up to personal preference. On the whole, the game feels like a reshuffled Emberfall to deliver the same experience in a slightly different way and a more casual audiovisual style.
Dr. Brainfart experiments with a familiar formula of progressive multipliers and scatter-pays presented in a new way, resulting in a similar, yet somewhat rearranged experience.
