The Fat Rabbit slot is a high-volatility Push Gaming game from 2018, played on a 5x5 grid with 50 fixed paylines. Its top RTP is 96.45%, but a 94.15% version also exists, so the first thing to check is which one your casino runs. The headline feature is a rabbit wild that eats carrots and grows to fill the whole grid.
Two RTP versions: 96.45% costs £3.55 per £100 staked on average; 94.15% costs £5.85.
High volatility on a 5x5 grid with 50 fixed lines.
The random Harvest feature adds carrot wilds and respins the other positions.
Free games give 5 spins with a moving rabbit wild that grows from 1x1 up to 5x5, adding spins as it grows.
Developer
Push Gaming
RTP
96.45% (94.15% version also exists)
Volatility
High
Layout
5 reels × 5 rows
Paylines
50 fixed paylines
Released
2018
Fat Rabbit RTP: check which version you are playing
Fat Rabbit is one of many slots that ship with more than one RTP setting, and the casino chooses which to install. The difference here is large enough to matter. On the 96.45% version, the long-run cost is £3.55 for every £100 you stake. On the 94.15% version, it is £5.85, which is about 65% more for exactly the same game and graphics.
Fat Rabbit RTP versions compared
Version
RTP
House edge
Cost of £300 staked
Cost of £1,000 staked
Higher
96.45%
3.55%
£10.65
£35.50
Lower
94.15%
5.85%
£17.55
£58.50
Difference
2.30 points
2.30 points
£6.90
£23.00
UK casinos must make the RTP available, usually in the game's help or information screen. Open it before your first spin. If the figure is 94.15%, the same budget will, on average, last a shorter time. Our explainer on slot RTP and the UK RTP display rules cover how to find it.
Fat Rabbit slot specifications
Fat Rabbit at a glance
Specification
Detail
Developer
Push Gaming
Released
2018
RTP
96.45% (94.15% version also exists)
Volatility
High
Layout
5 reels × 5 rows
Paylines
50 fixed
Max win
Check the game's help screen
Bonus
Free games with a growing rabbit wild
Push Gaming was founded in 2010, is based in London and holds Gambling Commission account 054984 through Push Gaming Holding Limited. LeoVegas Group, part of MGM Resorts, announced a majority stake in May 2023. The studio is better known today for Jammin' Jars, Razor Shark and Big Bamboo, and the growing-wild idea behind Fat Rabbit also appears in Fat Santa, while Fat Banker carries on the Fat name.
How the features work in Fat Rabbit
The Harvest feature
In the base game, the Harvest feature can trigger at random on any spin. When it does, carrot wilds are added to the grid and then every other position respins while the carrots stay put. The carrots act as wild symbols, so the respin has more chances to complete lines across the 50 paylines. Because the trigger is random, there is no pattern or timing that brings it on.
Starting the free games
Free games begin when a rabbit wild lands on the grid at the same time as a carrot. That combination is the only trigger described for the round, so this slot has no scatter count to watch for.
The growing rabbit
The round starts with 5 spins and a single rabbit wild that moves around the grid. Each carrot it eats helps it grow. It starts at 1x1, one position, and can grow all the way to 5x5, at which point it covers all 25 positions on the grid. Every time it goes up a size, extra spins are added to the round. A bigger rabbit means more wild positions on each spin, which is why the round's value depends so much on how many carrots appear.
The exact number of carrots needed to grow, the extra spins per size and the line values are set out in the paytable. Our checked data does not give them, so we don't quote them here.
Fat Rabbit free games: what a bigger rabbit covers
The grid has 25 positions (5 × 5). A square wild of a given size covers that size squared. This is plain geometry, not a paytable figure, but it shows why the late stages of the round are where the big results come from.
Share of the 5x5 grid a square rabbit wild covers
Rabbit size
Positions covered
Share of the grid
1x1 (start)
1
4%
2x2
4
16%
3x3
9
36%
4x4
16
64%
5x5 (maximum)
25
100%
The middle rows are for illustration of the geometry; check the help screen for the exact growth steps the game uses. Whatever the steps, the logic holds: each size increase both widens the wild and adds spins, so a round that grows early has more time to pay.
Fat Rabbit volatility: stakes and a £20 budget
High volatility means a large slice of the return sits in the free games, particularly the rounds where the rabbit grows big. Many sessions will not reach that point, and long spells of small results are normal. The table assumes the 96.45% version; on 94.15% each cost figure is about 65% higher.
£20 on Fat Rabbit at 96.45% RTP
Stake
Spins if nothing wins
Average cost per 100 spins
Average cost per 100 spins on 94.15%
10p
200
36p
59p
50p
40
£1.78
£2.93
£1
20
£3.55
£5.85
At 10p, a £20 budget gives the bonus a reasonable number of chances to appear. At £1, twenty losing spins would end the session, and high-volatility games can produce runs like that. Our high-volatility slots page and the variance and standard deviation guide explain why the swings are bigger than the average suggests.
How to play Fat Rabbit online
Open the information screen and confirm whether the RTP is 96.45% or 94.15%.
Read the paytable for symbol values and the rules on carrots and rabbit growth.
Set your stake; all 50 paylines are fixed and always active.
Spin. The Harvest feature may trigger at random, adding carrot wilds and respinning the rest.
Land a rabbit wild together with a carrot to start 5 free games.
Watch the rabbit move, eat carrots and grow; each size step adds spins.
When the round ends, check your net spend display before choosing whether to continue.
Fat Rabbit and UK slot rules
In Great Britain, online slot stakes are capped at £5 per spin for players aged 25 and over and £2 for players aged 18 to 24. The Commission's stake limit guidance (opens in a new tab) explains that the cap covers a full game cycle. Slots also cannot offer autoplay, turbo or slam-stop, must take at least 2.5 seconds a spin and must not celebrate a return below your stake. Since 17 January 2025 you see your net spend and session time on screen. Read more in our guides to the autoplay ban and slot stake limits.
Fat Rabbit review: pros, cons and who it suits
Advantages
Growing wild gives the free games a clear, easy-to-follow goal
Random Harvest feature adds interest to base-game spins
96.45% version is above the common 96% mark
Drawbacks
94.15% version costs noticeably more per spin
High volatility: the round can take many spins to arrive
Max win is not in our checked data, so check the help screen
An older 2018 design next to the studio's newer games
Fat Rabbit suits players who enjoy a single, visual bonus mechanic and can set aside a budget large enough for a high-volatility game at their chosen stake. The OLBG Fat Rabbit page (opens in a new tab) is another description of the features if you want a second view.
Fat Santa is the closest relative, using the same growing-wild idea with a Christmas theme. For more expanding mechanics, see expanding wilds and our animal slots collection.
Where to play the Fat Rabbit slot in the UK
We can't confirm from our partners' published details which of them carry Fat Rabbit, so check the game lobby, and the RTP version, before you sign up. The offers below are slot spin offers on specified or selected games. 18+ and terms apply.
PlayOJO: 80 free spins on Big Bass Bonanza for new UK customers (excluding Northern Ireland) on a first deposit of at least £10; 10p a spin, no wagering, cash winnings; offer link only, not combinable.
Coral: deposit and bet £10 on slots for 100 free spins at 10p on selected games, accepted within 48 hours and used within 7 days; no wagering on winnings; excludes Neteller, PayPal, Paysafe, Skrill, prepaid and certain debit cards.
Ladbrokes: spend £10 on slots for 50 free spins a day for 10 days (up to 500), 10p each on selected games, claimed before 23:59 daily, valid for 7 days, no wagering; prepaid, PayPal, Paysafe, Neteller, Skrill and Moneybookers deposits don't qualify.
If gambling is costing more than you planned, GamCare (opens in a new tab) offers free, confidential support on 0808 8020 133, and our page on support services lists more options.
Coral and Ladbrokes are both run by LC International Limited (Entain). If you already hold an account with one Entain brand, you may not be able to open another; check the terms first.
Significant terms: 18+. New UK customers (excluding Northern Ireland). First deposit only. Minimum deposit £10. 80 free spins on Big Bass Bonanza, £0.10 each. No wagering requirements; winnings paid in cash. Cannot be used with any other offer. Only available to players who arrive through the designated offer link. Full T&Cs apply. GamCare.org.uk
Read our PlayOJO reviewLicence: Skill On Net Limited, Gambling Commission account 39326. Offer checked 5 October 2026.
Significant terms: 18+. New players only. Offer runs 01/10/2026 to 01/02/2027. Deposit (certain types excluded) and bet £10+ on slot games to get 100 free spins (selected games, £0.10 each, 48 hrs to accept, valid 7 days). No wagering on free spin winnings. Deposits by Neteller, PayPal, Paysafe, Skrill, prepaid cards and certain debit cards do not qualify. Restrictions and T&Cs apply. GamCare.org.uk
Read our Coral reviewLicence: LC International Limited, Gambling Commission account 54743. Offer checked 5 October 2026.
Time limitClaim daily for 10 days; each batch valid 7 days
Worked valueUp to 500 spins at £0.10 (up to £50 in spins)
Significant terms: 18+. New customers only, from 14/11/25 until further notice. Certain deposit methods excluded. Deposit and spend £10+ on slots for 50 free spins a day during the first 10 days after first deposit and registration (max 500, £0.10 each, selected games, claim before 23:59 each day, valid 7 days). No wagering. Prepaid cards, PayPal, Paysafe, Neteller, Skrill and Moneybookers deposits do not qualify. Restrictions and T&Cs apply. GamCare.org.uk
Read our Ladbrokes reviewLicence: LC International Limited, Gambling Commission account 54743. Offer checked 5 October 2026.
18+. Every casino game has a built-in house edge, so over time you should expect to lose what you stake. Set a budget before you play and stop when it’s gone: safer gambling tools and support. Free, confidential help: National Gambling Helpline 0808 8020 133.
Frequently asked questions
What is the RTP of Fat Rabbit?
Fat Rabbit has a top RTP of 96.45%, but a 94.15% version also exists. On the higher version the average long-run cost is £3.55 per £100 staked, and on the lower one it is £5.85. The casino decides which version to run, and the figure should be shown in the game's help or information screen. Check it before playing. Our RTP explained page covers what the number means over short and long sessions.
How do you trigger free games on Fat Rabbit?
Free games on Fat Rabbit start when a rabbit wild lands together with a carrot. You get 5 spins to begin with, and a moving rabbit wild that eats carrots to grow. Every time it increases in size, more spins are added. The trigger is random, so no stake size, time of day or run of losing spins makes it more likely. See our guide to slot bonus rounds for how other games handle their features.
What is the Harvest feature in Fat Rabbit?
The Harvest feature is a random base-game bonus in Fat Rabbit. When it triggers, carrot wilds are added to the grid and the other positions respin while the carrots stay in place. The extra wilds improve the chance of completing lines on that respin. It can happen on any spin and cannot be predicted. Our page on slot respins explains how respin features generally work.
How big can the rabbit get in Fat Rabbit?
The rabbit wild in Fat Rabbit can grow from 1x1 up to 5x5. On the game's 5x5 grid, a 5x5 rabbit covers all 25 positions, making every position wild. It grows by eating carrots during the free games, and each size increase also adds extra spins. The number of carrots needed for each step is in the paytable. Our guide to expanding wilds compares other ways slots enlarge their wilds.
Is Fat Rabbit high volatility?
Yes, Fat Rabbit is a high-volatility slot. Much of its return comes from the free games, especially rounds where the rabbit grows large, so expect long runs of small or no wins between bigger results. That doesn't change the average cost, which is set by the RTP version, but it does mean your balance can swing sharply. Our slot volatility guide explains how to match volatility to your budget.
What is the maximum win on Fat Rabbit?
Our checked data does not include a verified maximum win for Fat Rabbit, so look in the game's help screen at the casino you use. Whatever the cap, prizes near the top depend on a free games round where the rabbit grows to cover much of the grid, and such rounds are rare. Treat any top prize as a ceiling rather than a goal. For a comparable game with a published cap, Fat Banker lists 25,000× stake.
When was Fat Rabbit released and who made it?
Fat Rabbit was released in 2018 by Push Gaming, a London-based studio founded in 2010. The studio holds a Gambling Commission licence through Push Gaming Holding Limited, account 054984, and LeoVegas Group announced a majority stake in May 2023. The same growing-wild idea appears in its festive sister game, Fat Santa. Our Push Gaming page lists its slots with RTP and volatility.
Can I play Fat Rabbit on mobile in the UK?
Most UK casinos offer their slots in mobile browsers and apps, but whether Fat Rabbit is available depends on the casino's lobby, so search for it there. The same UK rules apply on any device: a £5 or £2 stake cap depending on your age, no autoplay, a minimum spin time of 2.5 seconds and a real-time net spend display. Our how to choose a slot guide has more tips.
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