Apollo Games

Slot Birds 81

Slots Video Slots Nature Animals Cartoon

Cartoon bird sequel adapted to an 81-line format

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

92%

return to player

Volatility

Medium volatility

variance

Max win

320×

top multiplier

Min bet

$0.10

per spin

Reels

81 lines

Player rating

4.5 ★

3 votes

DEMO Play free, no signup

Apollo Games

Embed on your site

4.5 / 5

3 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 & RTP3/10

RTP 92% → 3.0/10

Volatility8/10

medium → 8.0/10

Win Potential5/10

x320.00 (320×) → 5.0/10

Features9/10

13 features → 9.0/10

Game Mechanics5.8/10

f=13 r=4 p=81 → 5.8/10

Context signals (tie-breakers)

Layout5/10

4x3 → 5.0/10

Bet Flexibility6/10

0.1–35 (×350) → 6.0/10

Provider Reputation5/10

provider avg 5.0 → 5.0/10

Popularity0/10

synthetic proxy → 0.0/10

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: 48 — Slot Birds 81 by Apollo Games

https://slotranker.com/apollo-games/slot-birds-81#score

How to cite

Slot Summary

Cascades keep the reel state moving after a win, giving Slot Birds 81 more mechanical activity than its cartoon surface initially suggests. Apollo Games reworked its Slot Birds concept into a four-reel, 81-line version with a 92% RTP and medium volatility. Removed symbols make room for new arrivals, while random Wild additions, Wild multipliers, retriggerable Free Spins, and the gamble option create several independent modifiers.

How It Plays

Four reels evaluate combinations across 81 lines. After a qualifying result, the Cascading and Remove Symbols behavior clears participating symbols and introduces replacements.

The wider line count creates many simultaneous evaluation paths despite the compact reel count. Medium volatility places the expected result pattern between steadier and sharper extremes.

Theme & Atmosphere

The Animals and Cartoon themes use a cast of comic birds rather than traditional fruit-machine symbols, preserving the identity of the earlier Slot Birds game.

Nature imagery supports the bird cast, while the inherited soundtrack and sound effects make this edition recognizable as part of the same game concept.

Nature Animals Cartoon

Features & Win Potential

Random Wilds can add substitute symbols without a separate player action. Wild Multipliers increase qualifying combinations, with the documented multiplier Wild applying x2.

Avalanche and Cascading behavior remove winning symbols before replacements arrive. The separate risk game lets the player gamble an eligible result after reel play.

Free Spins Scatter Symbol Wild Symbol Cascading Medium volatility Wild Multipliers Additional Free Spins RTP range Bonus symbols Avalanche Risk/Gamble (Double) game Random Wilds / Additional Wilds Remove Symbols

Bonus & Free Spins

Bonus symbols award either 10 or 20 Free Spins according to the qualifying combination, and another trigger can add further spins to the round.

Free Spins retain the Wild features, including multiplier Wilds and random Flying Wilds or Flying Vultures that place additional substitutes on the reels.

Spec sheet

Slot Birds 81 at a glance.

Identity

Slot nameSlot Birds 81

StudioApollo Games

Released12/20/2020

Math

SlotRanker Score48

RTP92%

VolatilityMedium volatility

Max win320×

Bet range$0.10 – $35.00

Player rating4.5 / 5 · 3 votes

Format

Reels4

Paylines81

Layout4x3

Features

Themes

Expected average based on this slot's 92% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$3.20

Cost per session$3.20

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 Slot Birds 81? 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: Medium

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 (Medium). The model is calibrated so the average return equals this slot's published RTP (92.00%), with wins capped at its top multiplier (320×).

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 Slot Birds 81

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Compare Slot Birds 81 with other games

	Slot Birds 81 Score 48This game	Dragonz 2 Score 86	Bling Bling Penguin: Ice on the Beach Score 83	Benny The Beer Score 82	Rabbit Garden Score 82
Identity
Studio	Apollo Games	Hammertime	Games Global	Hacksaw Gaming	Pragmatic Play
Released	12/20/2020	11/11/2024	8/1/2024	10/5/2023	3/16/2023
Math
RTP	92%	96.3%	96.11%	96.17%	95.02%
Volatility	Medium volatility	High volatility	High volatility	High volatility	High volatility
Max win	320×	15,000×	10,000×	10,000×	10,000×
Format
Reels	4	5	5	5	7
Layout	4x3	5x3	5x3	5x5	7x7
Paylines	81	243	243	1	7
Min bet	0.1	0.2	0.1	0.1	0.2
Max bet	35	5	20	10000	100
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	—	—	—
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	—	✓	—	✓	✓
Bonus game	—	✓	✓	✓	—
Respins	—	—	—	✓	—

Every number is shown as a delta against Slot Birds 81.

Comparing against

Slot Birds 81

Apollo Games

RTP

92%

Max win

320×

Score

+ Multiplier+ Bonus Game

Bling Bling Penguin: Ice on the Beach

+ Multiplier+ Bonus Game+ Respins− Wild

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