Playtech

Big Sumo

Comic sumo contest driven by rice collection and wrestler growth

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

95.84%

return to player

Volatility

—

variance

Max win

—

top multiplier

Min bet

$0.05

per spin

Reels

25 lines

Player rating

4.5 ★

18 votes

DEMO Play free, no signup

Playtech

Embed on your site

4.5 / 5

18 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 & RTP8/10

RTP 95.84% → 8.0/10

Volatility8/10imputed

imputed medium (unknown) → 8.0/10

Win Potential—

no data

Features8/10

10 features → 8.0/10

Game Mechanics5.6/10

f=10 r=5 p=25 → 5.6/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility8/10

0.05–500 (×10000) → 8.0/10

Provider Reputation6.1/10

provider avg 6.1 → 6.1/10

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: 62 — Big Sumo by Playtech

https://slotranker.com/playtech/big-sumo#score

How to cite

Slot Summary

A sumo wrestler who grows by collecting rice gives Big Sumo both its comic Warrior subject and its dominant mechanic. Playtech starts the action on 25 paylines, then expands the game during the Bonus Game as the wrestler fills a collection meter and increases in size. Reaching the largest Mega Symbol opens a separate reel event, while Fixed Jackpots provide a second feature route.

How It Plays

The ordinary game uses a 5-by-3 layout with 25 paylines. Rice symbols and the central wrestler matter because their combination provides entry to the growth sequence.

Once that sequence begins, collected rice fills a meter. Completing the meter enlarges the Walking Wild and adds another spin, allowing the collection process to continue.

Theme & Atmosphere

The Warrior theme centers on sumo competition, but Humor shapes the treatment. The wrestler's increasing size turns the sporting subject into a visible running gag.

Rice is more than scene dressing because it functions as the collected resource. That link between subject and mechanic keeps the Japanese sumo setting relevant during play.

Warrior Humor

Features & Win Potential

The Walking Wild grows through Symbols Collection, eventually becoming a Mega Symbol that can occupy the full expanded grid and activate a separate reel result.

Fixed Jackpots sit on another feature path using Gold and Silver Bonus symbols. This keeps the jackpot event separate from the wrestler's rice collection sequence.

Free Spins Scatter Symbol Wild Symbol Bonus Game Walking Wilds Symbols collection (Energy)Additional Free Spins Bonus symbols Fixed Jackpots Mega Symbol (3x3)

Bonus & Free Spins

The Bonus Game begins when rice symbols appear on the outer reels with the wrestler on the middle reel, awarding 5 feature spins on a 5-by-5 grid.

Each completed rice meter adds a spin and enlarges the wrestler. Reaching the full 5-by-5 Mega Symbol then triggers the Mega Reel.

Spec sheet

Big Sumo at a glance.

Identity

Slot nameBig Sumo

StudioPlaytech

Released11/23/2025

Math

SlotRanker Score62

RTP95.84%

Max win—

Bet range$0.05 – $500.00

Player rating4.5 / 5 · 18 votes

Format

Reels5

Paylines25

Layout5x3

Features

Themes

Expected average based on this slot's 95.84% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$0.83

Cost per session$0.83

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 Big Sumo? 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 (95.84%), 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 Big Sumo

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Compare Big Sumo with other games

	Big Sumo Score 62This game	BattleSheeps Score 78	Ave Caesar Score 76	Ave Caesar Score 69	Braindead Score 63
Identity
Studio	Playtech	Massive Studios	RAW iGaming	Leander Games	Mancala Gaming
Released	11/23/2025	10/5/2025	6/29/2023	1/10/2018	10/7/2021
Math
RTP	95.84%	96.63%	95.53%	95%	95%
Volatility	—	High volatility	Medium/High	High volatility	High volatility
Max win	—	15,000×	4,500×	1,000×	5,770×
Format
Reels	5	5	5	5	5
Layout	5x3	5x3	5x3	5x3	5x3
Paylines	25	15	243	20	25
Min bet	0.05	0.1	0.2	0.2	1
Max bet	500	100	95	40	90
Features
Progressive	—	—	—	✓	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	—	—
Multiplier	—	✓	✓	✓	—
Bonus game	✓	—	✓	✓	✓
Respins	—	—	—	—	—

Every number is shown as a delta against Big Sumo.

Comparing against

Big Sumo

Playtech

RTP

95.84%

Max win

—

Score

+ Multiplier− Bonus Game

+ Progressive+ Multiplier− Scatter

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