In the competitive world of online slot development, few franchises have achieved the cult status of Push Gaming’s “Fat” series. Beginning with a hungry rabbit in a carrot patch, this series introduced a unique “growing wild” mechanic that redefined player expectations for bonus rounds.1 As the series expanded to include festive, spooky, and high-finance TG88 themes, the underlying math and mechanics evolved significantly. For the professional player, understanding the nuances between these titles is key to choosing a game that matches their risk profile.
The Genesis of the Growing Wild: Fat Rabbit and Fat Santa
The series debuted with Fat Rabbit in 2018, introducing a 5×5 grid with 50 paylines.2 The core innovation was the “expanding wild” during the free spins round. To trigger this, players must land a Rabbit symbol and a Wild Carrot simultaneously.3 During the bonus, the Rabbit moves across the reels to “eat” any carrots that land, filling a meter.4 Each time the meter is completed, the Rabbit grows in size—moving from 1×1 to 2×2, 3×3, and eventually a screen-filling 5×5 wild—while awarding extra spins.5+2
Fat Santa, released shortly after, is largely a “skin” of the original, sharing the same 96.45% RTP and 10,223x max win potential.6 However, it introduced a “Buy Feature” (in eligible jurisdictions), allowing players to bypass the base game and jump straight into the bonus.7 Both games are considered medium-to-high volatility, offering a balanced experience where the primary goal is reaching that elusive 5×5 “Fat” symbol.8+2
The Evolutionary Leap: Fat Drac
Released in 2021, Fat Drac represented a significant departure from the original model.9 While it retained the growing character mechanic, it shifted the focus toward Instant Prize Bubbles and mystery symbols. Unlike its predecessors, Fat Drac uses 40 paylines and introduces a much higher volatility profile, with a max win potential of 50,000x—nearly five times that of the original games.10
The “Fat Drac” symbol acts as a “Reveal” symbol, uncovering tg88 nạp rút either a paying symbol or a Bat.11 If a Bat is revealed, it flies to an Instant Prize Bubble, which can pay up to 50,000x the stake. This shifted the game from a “growing wild” focus to a “collection” focus, where the biggest wins often come from the prize bubbles rather than the character’s size on the board.
Comparison of Push Gaming “Fat” Series Metrics
| Game Title | Grid Size | Paylines | Max Win | Key Innovation |
| Fat Rabbit | 5×5 | 50 | 10,223x | The original “Growing Wild” mechanic. |
| Fat Santa | 5×5 | 50 | 10,223x | Introduction of the Bonus Buy feature. |
| Fat Drac | 5×5 | 40 | 50,000x | Instant Prize Bubbles and Bat symbols. |
| Fat Banker | 6×6 | 50 | 25,000x | Fortune Link and Bullion Multipliers. |
The Modern Titan: Fat Banker
The fourth installment, Fat Banker, takes the series to a 6×6 grid and introduces a 1920s high-finance theme.12 This title blends the “growing wild” mechanic of the early games with the “instant prize” elements of Fat Drac. It features a 25,000x max win and introduces Bullion Symbols (bet multipliers) that must be collected by a Silver Safe symbol on the sixth reel.13+1
Fat Banker is arguably the most complex in the series, featuring two distinct bonus rounds:
- Fortune Link: A “Hold and Win” style feature focused on collecting Bullion symbols and Multipliers.14
- Banker Free Spins: The classic growing wild round, where the Banker collects Money Bags to grow up to a 6×6 size.15
The addition of the Red Car and Gold Car random features further increases the base-game engagement, making it feel less like a “bonus or bust” machine compared to the earlier titles.
Volatility and Bankroll Management
From a professional standpoint, the “Fat” series covers a wide spectrum of volatility.
- Fat Rabbit/Santa are the most “stable,” suitable for players who enjoy a longer session and want a realistic chance of seeing the character grow to at least a 3×3 or 4×4 size.
- Fat Drac is the most “extreme.” The potential for a 50,000x win means the base game can be very punishing, and the bonus rounds are highly unpredictable.
- Fat Banker sits in the middle, offering a high-volatility experience but with more frequent “mini-wins” through the Bullion collection system to keep the bankroll afloat.
Conclusion: Which “Fat” Game Should You Play?
The choice between these titles depends on your specific goal as a player. If you value the classic, pure “growing wild” experience, Fat Rabbit remains the gold standard. If you are a “jackpot chaser” willing to endure high variance for a massive payout, Fat Drac is the superior mathematical choice. For those who prefer modern features like multipliers and secondary bonus games, Fat Banker provides the most well-rounded experience.
Regardless of the theme, the series remains a masterclass in how a single mechanic—feeding a character to make it grow—can be re-imagined to fit different math models and player preferences.