Bally Wulff

The Goo

Slots Video Slots Fantasy Magic Gems Love Treasure Medieval Guns

Medieval Bally Wulff slot where spreading goo creates Wild positions

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

96.03%

return to player

Volatility

—

variance

Max win

—

top multiplier

Min bet

$0.10

per spin

Reels

10 lines

Player rating

3.6 ★

2 votes

DEMO Play free, no signup

Bally Wulff

Embed on your site

3.6 / 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 96.03% → 9.0/10

Volatility8/10imputed

imputed medium (unknown) → 8.0/10

Win Potential—

no data

Features3.5/10

7 features → 3.5/10

Game Mechanics3.4/10

f=7 r=5 p=10 → 3.4/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.1–70 (×700) → 6.0/10

Provider Reputation6.6/10

provider avg 6.6 → 6.6/10

Popularity3.3/10

synthetic proxy → 3.3/10

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: 59 — The Goo by Bally Wulff

https://slotranker.com/bally-wulff/the-goo#score

How to cite

Slot Summary

A medieval treasure room supplies the subject of The Goo, but its green slime is more than scene dressing. Bally Wulff makes the substance the Wild Symbol, allowing it to spread across nearby positions and convert surrounding symbols into Wilds. That direct interaction gives an otherwise compact 5x3, 10-line game its identity, alongside a 96.03% RTP and optional Risk/Gamble play.

How It Plays

The base spin uses 5 reels, 3 rows and 10 Paylines, keeping the ordinary evaluation simple before the unusual Wild behavior changes nearby positions.

When the goo lands, it can spread and turn adjacent symbols into Wild Symbols. Those substitutions may complete combinations that were absent at the original reel stop.

Theme & Atmosphere

Medieval and Fantasy subjects appear through armor, helmets, keys, potions and Treasure, framing the goo as an unstable magical substance inside an old stronghold.

Gems reinforce the Treasure theme, while Magic explains why the slime can alter surrounding symbols instead of serving only as a comic visual element.

Fantasy Magic Gems Love Treasure Medieval Guns

Features & Win Potential

The Wild Symbol supplies both substitution and Expanding Symbols behavior, allowing one goo result to affect neighboring positions rather than only its original location.

After an eligible payout, the Risk/Gamble game creates a separate decision about the existing award. It does not alter the 10 Paylines or base symbol rules.

Wild Symbol 5 Reels Expanding Symbols 10 Paylines 96% RTP Risk/Gamble (Double) game Substitution Symbols

Spec sheet

The Goo at a glance.

Identity

Slot nameThe Goo

StudioBally Wulff

Released1/29/2023

Math

SlotRanker Score59

RTP96.03%

Max win—

Bet range$0.10 – $70.00

Player rating3.6 / 5 · 2 votes

Format

Reels5

Paylines10

Layout5x3

Features

Themes

Expected average based on this slot's 96.03% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$1.59

Cost per session$1.59

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 The Goo? 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: Mediumassumed — not published for this slot

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 (96.03%), with wins capped at its top multiplier (1,000×).

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 The Goo

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Compare The Goo with other games

	The Goo Score 59This game	Genie’s Link&Win 4Tune Score 87	Ultra Cluster Kingdom Score 86	Age of Conquest Diamonds & Dragons Score 71	Medusa's Madness Score 63
Identity
Studio	Bally Wulff	All For One Studios	GameArt	Neon Valley Studios	Play'n Go
Released	1/29/2023	4/25/2024	9/24/2024	1/30/2025	12/6/2024
Math
RTP	96.03%	96.24%	96.22%	96%	94.52%
Volatility	—	High volatility	High volatility	High volatility	Medium volatility
Max win	—	15,000×	5,000×	1,200×	2,000×
Format
Reels	5	5	8	5	7
Layout	5x3	5x3	8x8	5x3	7x7
Paylines	10	25	Cluster Pays	20	Cluster Pays
Min bet	0.1	0.1	0.2	0.2	0.1
Max bet	70	20	200	200	100
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	—	✓	✓
Free spins	—	✓	✓	✓	✓
Scatter symbol	—	✓	✓	✓	✓
Multiplier	—	—	—	✓	✓
Bonus game	—	✓	✓	✓	—
Respins	—	✓	—	—	—

Every number is shown as a delta against The Goo.

Comparing against

The Goo

Bally Wulff

RTP

96.03%

Max win

—

Score

Genie’s Link&Win 4Tune

+ Free Spins+ Scatter+ Bonus Game+ Respins

Ultra Cluster Kingdom

+ Free Spins+ Scatter+ Bonus Game− Wild

Age of Conquest Diamonds & Dragons

+ Free Spins+ Scatter+ Multiplier+ Bonus Game

+ Free Spins+ Scatter+ Multiplier

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