RubyPlay

Bull Fever

RARE Slots Video Slots Bull Animals Festival

Play Bull Fever slot by RubyPlay for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.

Only 0.4% of slots combine 243 Ways and Hold And Win.

SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals or paid placement.

How this score is built

RTP

96.88%

return to player

Volatility

High volatility

variance

Max win

4,000×

top multiplier

Min bet

$0.50

per spin

Reels

243 lines

Player rating

4.4 ★

2 votes

DEMO Play free, no signup

RubyPlay

Embed on your site

4.4 / 5

2 ratings

User ratings are shown separately from the Slot Score unless stated otherwise.

Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.

Payouts & RTP9/10

RTP 96.88% → 9.0/10

Volatility9/10

high → 9.0/10

Win Potential7.2/10

x4000.00 (4000×) → 7.2/10

Features10/10

11 features → 10.0/10

Game Mechanics8.5/10

f=11 r=5 p=243 → 8.5/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.5–500 (×1000) → 6.0/10

Provider Reputation6.9/10

provider avg 6.9 → 6.9/10

Popularity5/10

synthetic proxy → 5.0/10

Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.

Cite this score

SlotRanker Score: 79 — Bull Fever by RubyPlay

https://slotranker.com/rubyplay/bull-fever#score

How to cite

Spec sheet

Bull Fever at a glance.

Identity

Slot nameBull Fever

StudioRubyPlay

Released5/25/2021

Math

SlotRanker Score79

RTP96.88%

VolatilityHigh volatility

Max win4,000×

Bet range$0.50 – $500.00

Player rating4.4 / 5 · 2 votes

Format

Reels5

Paylines243

Layout5x3

Features

Themes

Expected average based on this slot's 96.88% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$6.24

Cost per session$6.24

Estimate only, for entertainment purposes — treat gambling as entertainment, not a way to make money, and set a budget you can afford to lose.

How long could a bankroll last on Bull Fever? We simulate thousands of sessions from this game's published RTP and volatility — the long-run math, not a prediction of your next spin.

Bankroll ($)Bet per spin ($)Speed

Volatility tier: High

Running simulation…

How this works

Each simulated spin either misses or returns a win drawn from a log-normal distribution, with the hit rate and spread set by the slot's volatility tier (High). The model is calibrated so the average return equals this slot's published RTP (96.88%), with wins capped at its top multiplier (4,000×).

This is a simplified, parametric model of the game's math — not its real paytable. It exists to make the house edge visible over many sessions, so the numbers above are averages across thousands of runs, never a forecast of one.

This is math, not a prediction. Real sessions vary wildly, and no strategy changes a game's built-in house edge. Play for fun, set limits, and never bet more than you can afford to lose.

Compare Bull Fever with other games

	Bull Fever Score 79This game	La Fiesta Score 83	Wild Toro Score 77	Los Toros Score 76	Spinata Grande Score 73
Identity
Studio	RubyPlay	Relax Gaming	ELK Studios	Popok Gaming	NetEnt
Released	5/25/2021	8/5/2020	11/2/2016	10/18/2022	3/23/2015
Math
RTP	96.88%	96.55%	96.4%	95.93%	96.84%
Volatility	High volatility	High volatility	High volatility	High volatility	Medium volatility
Max win	4,000×	14,778×	2,250×	2,093×	—
Format
Reels	5	5	5	5	5
Layout	5x3	5x4	5x4	5x3	5x4
Paylines	243	40	178	243	40
Min bet	0.50	0.10	0.20	0.00	0.20
Max bet	500.00	100.00	100.00	0.00	200.00
Features
Progressive	—	—	—	✓	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	—	✓	✓
Multiplier	—	✓	—	—	—
Bonus game	✓	✓	✓	✓	✓
Respins	✓	✓	✓	✓	—

Every number is shown as a delta against Bull Fever.

Comparing against

Bull Fever

RubyPlay

RTP

96.88%

Max win

4,000×

Score

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