Happy Duck

Soul Harvest

Happy Duck horror slot combining pay-anywhere cascades with Soul Catcher multipliers

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

96.12%

return to player

Volatility

Medium volatility

variance

Max win

20,000×

top multiplier

Min bet

$0.20

per spin

Reels

grid

Player rating

3.8 ★

7 votes

DEMO Play free, no signup

Happy Duck

Embed on your site

3.8 / 5

7 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 96.12% → 9.0/10

Volatility8/10

medium → 8.0/10

Win Potential8.6/10

x20000.00 (20000×) → 8.6/10

Features9/10

11 features → 9.0/10

Game Mechanics6.8/10

f=11 r=5 → 6.8/10

Context signals (tie-breakers)

Layout5/10

5x6 → 5.0/10

Bet Flexibility4/10

0.2–10 (×50) → 4.0/10

Provider Reputation6.7/10

provider avg 6.7 → 6.7/10

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 — Soul Harvest by Happy Duck

https://slotranker.com/happy-duck/soul-harvest#score

How to cite

Slot Summary

Soul Harvest occupies a narrow space between horror styling and a pay-anywhere cascade game. Happy Duck uses a 5 by 6 layout where winning groups disappear and replacements fall into place, while Soul Catcher multipliers and free spins carry the larger swings. Its 96.12% RTP, medium volatility, and 20000x ceiling frame a game that favors chained results over fixed-line wins.

How It Plays

Matching groups pay anywhere on the 5 by 6 layout, removing the need to trace conventional paylines. A completed win clears before replacement symbols arrive.

Each cascade creates another opportunity from the same wager. Soul Catcher multipliers give those repeated drops extra weight when they appear during a sequence.

Theme & Atmosphere

Horror is the central theme, expressed through a reaper-like subject and a setting associated with harvesting souls rather than conventional treasure hunting.

Skulls, bones, ancient books, keys, and concealed treasure supply the dark-fantasy details. The imagery suits a game where symbols repeatedly vanish and return through cascades.

Horror

Features & Win Potential

Avalanche and Cascading mechanics remove winning symbols and refill the layout, allowing several pay-anywhere results to develop from one paid spin.

Multiplier effects become more important during longer cascades. The named Soul Catcher multipliers connect the horror subject directly to the game's main payout modifier.

Free Spins Multiplier Scatter Symbol Cascading Additional Free Spins RTP range Avalanche Gonzo mechanic Pay Anywhere Bonus Bet Free Spins Multiplier

Bonus & Free Spins

Free Spins preserve the cascading format while adding Free Spins Multipliers and opportunities for Additional Free Spins. A Bonus Bet can alter access to that feature set.

Spec sheet

Soul Harvest at a glance.

Identity

Slot nameSoul Harvest

StudioHappy Duck

Released6/25/2026

Math

SlotRanker Score75

RTP96.12%

VolatilityMedium volatility

Max win20,000×

Bet range$0.20 – $10.00

Player rating3.8 / 5 · 7 votes

Format

Reels5

Paylines—

Layout5x6

Features

Themes

Expected average based on this slot's 96.12% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$3.10

Cost per session$3.10

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 Soul Harvest? 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 (96.12%), with wins capped at its top multiplier (20,000×).

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 Soul Harvest

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Compare Soul Harvest with other games

	Soul Harvest Score 75This game	RoxDogs Score 90	Dark Ritual Score 90	Eldritch Dungeon Score 90	Don’t Hit Plz! Score 89
Identity
Studio	Happy Duck	Popiplay	Advant Play	Print Studios	Max Win Gaming
Released	6/25/2026	12/3/2024	4/26/2024	7/22/2024	4/24/2024
Math
RTP	96.12%	97.03%	97.09%	96.1%	96.32%
Volatility	Medium volatility	High volatility	High volatility	High volatility	High volatility
Max win	20,000×	30,000×	20,000×	20,000×	25,000×
Format
Reels	5	6	5	7	5
Layout	5x6	6x4	5x3	7x7	5x5
Paylines	—	4096	3125	0	3125
Min bet	0.2	0.2	0.1	0.1	0.1
Max bet	10	7.5	10	5	20
Features
Progressive	—	—	—	—	—
Wild symbol	—	✓	✓	✓	—
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	✓	✓	✓	✓	✓
Bonus game	—	✓	✓	✓	✓
Respins	—	✓	—	—	✓

Every number is shown as a delta against Soul Harvest.

Comparing against

Soul Harvest

Happy Duck

RTP

96.12%

Max win

20,000×

Score

+ Wild+ Bonus Game+ Respins

+ Bonus Game+ Respins

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