ELK Studios

BIrthday

Slots Video Slots Party Flowers Alcohol Festival Animals Balloons Bar

ELK ensemble Party slot with combinable guest features

SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals, and it cannot be bought.

How this score is built

RTP

96.3%

return to player

Volatility

High volatility

variance

Max win

5,000×

top multiplier

Min bet

$0.20

per spin

Reels

178 lines

Player rating

3.7 ★

8 votes

DEMO Play free, no signup

ELK Studios

Embed on your site

3.7 / 5

8 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 96.3% → 9.0/10

Volatility9/10

high → 9.0/10

Win Potential7.4/10

x5000.00 (5000×) → 7.4/10

Features8/10

12 features → 8.0/10

Game Mechanics6.7/10

f=12 r=5 p=178 → 6.7/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.2–50 (×250) → 6.0/10

Provider Reputation7.1/10

provider avg 7.1 → 7.1/10

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: 75 — BIrthday by ELK Studios

https://slotranker.com/elk-studios/birthday#score

How to cite

Slot Summary

A 5-reel format with 178 ways turns BIrthday into an ELK Studios reunion rather than a standard cake-and-candles slot. Familiar studio characters arrive as surprise guests carrying Respins, Free Spins, Sticky Wilds, or Walking Wilds. Those features can overlap or wait for another event to finish, linking the Party theme directly to a high-volatility structure where each new arrival can change the active conditions.

How It Plays

The game uses 5 reels and 178 connecting ways rather than a small set of conventional paylines. Matching symbols form wins while random guest arrivals interrupt the normal spin sequence.

Guest features do not always resolve in isolation. One event can combine with another, and Free Spins may pause while an active Respin sequence finishes before resuming.

Theme & Atmosphere

Balloons, Flowers, Alcohol, and a Bar place the Party inside a social venue, with cake and arriving guests supplying the recognizable Birthday details.

The Animals and Festival elements come through returning ELK characters rather than anonymous partygoers, making the celebration function as a studio cast reunion.

Party Flowers Alcohol Festival Animals Balloons Bar

Features & Win Potential

Respins arrive through guest appearances and can carry their own completion condition. Sticky Wilds remain in position, while Walking Wilds move across the reels during subsequent spins.

Expanding Wilds alter more reel space at once, and the cake serves as a Wild symbol. Several Wild and Respin effects can coincide with Free Spins.

High volatility Free Spins Wild Symbol Medium/High Respins 5 Reels Expanding Wilds Sticky Wilds Walking Wilds RTP range 96% RTP Respin Locking Win

Bonus & Free Spins

Free Spins can trigger through a guest arrival and may wait while another feature resolves. This sequencing prevents an active Respin event from simply canceling the free-spin award.

Because Happy Spins, Free Spins, and Wild effects can combine, the bonus behavior depends on which guests appear together rather than on one fixed trigger sequence.

Spec sheet

BIrthday at a glance.

Identity

Slot nameBIrthday

StudioELK Studios

Released5/23/2018

Math

SlotRanker Score75

RTP96.3%

VolatilityHigh volatility

Max win5,000×

Bet range$0.20 – $50.00

Player rating3.7 / 5 · 8 votes

Format

Reels5

Paylines178

Layout5x4

Features

Themes

Expected average based on this slot's 96.3% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$2.96

Cost per session$2.96

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 BIrthday? 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 (96.30%), with wins capped at its top multiplier (5,000×).

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.

Where to play BIrthday

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Compare BIrthday with other games

	BIrthday Score 75This game	Spinata Pinata Score 69	Oktobearfest Score 85	The Tipsy tourist: Beach Bonanza Score 80	Penguins Christmas Party Time Score 74
Identity
Studio	ELK Studios	StakeLogic	Popiplay	Betsoft	Reel Kingdom
Released	5/23/2018	12/7/2023	9/15/2025	1/30/2025	11/4/2024
Math
RTP	96.3%	94.1%	97.03%	96.06%	95.51%
Volatility	High volatility	High volatility	High volatility	Medium/High	High volatility
Max win	5,000×	5,000×	30,000×	500×	2,000×
Format
Reels	5	5	6	5	5
Layout	5x4	5x3	6x4	5x3	5x3
Paylines	178	40	4096	20	25
Min bet	0.2	0.2	0.2	0.1	0.05
Max bet	50	100	75	80	250
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	—	✓
Scatter symbol	—	✓	✓	—	✓
Multiplier	—	✓	✓	✓	✓
Bonus game	—	—	—	✓	—
Respins	✓	—	✓	✓	—

Every number is shown as a delta against BIrthday.

Comparing against

BIrthday

ELK Studios

RTP

96.3%

Max win

5,000×

Score

+ Scatter+ Multiplier− Respins

+ Scatter+ Multiplier

The Tipsy tourist: Beach Bonanza

+ Multiplier+ Bonus Game− Free Spins

Penguins Christmas Party Time

+ Scatter+ Multiplier− Respins

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01Why do ELK characters appear in BIrthday?

The slot presents a reunion of characters from earlier ELK Studios games. Each arriving guest is associated with a particular feature or reel modification.

02Can multiple features be active together?

Yes. Happy Spins can combine with Free Spins and Wild features, while a Free Spins event can wait until another active feature has finished.

03What are the RTP and maximum win?

BIrthday has a 96.3% RTP, high volatility, and a published maximum win of x5000.00. The supported stake range is 0.2 to 50.

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