Endorphina

2021 Hit Slot

Slots Classic Slots Video Slots Fruit Retro Star Classic

Annual classic-fruit sequel with a restrained three-reel 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

96%

return to player

Volatility

—

variance

Max win

—

top multiplier

Min bet

$0.05

per spin

Reels

5 lines

Player rating

3.6 ★

7 votes

DEMO Play free, no signup

Endorphina

Embed on your site

3.6 / 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% → 9.0/10

Volatility8/10imputed

imputed medium (unknown) → 8.0/10

Win Potential—

no data

Features2.5/10

5 features → 2.5/10

Game Mechanics2.2/10

f=5 r=3 p=5 → 2.2/10

Context signals (tie-breakers)

Layout4/10

3x3 → 4.0/10

Bet Flexibility6/10

0.05–50 (×1000) → 6.0/10

Provider Reputation6.6/10

provider avg 6.6 → 6.6/10

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: 50 — 2021 Hit Slot by Endorphina

https://slotranker.com/endorphina/2021-hit-slot#score

How to cite

Slot Summary

A yearly refresh for players who still want a bare three-reel fruit machine is the specific space 2021 Hit Slot occupies. Endorphina follows its 2020 title with another 3x3 layout, five fixed paylines, and a Risk Game instead of a large bonus package. Fruit, sevens, stars, and bells keep the identity deliberately retro, while the gamble option supplies the only major break from direct line evaluation.

How It Plays

Each spin resolves on three reels and three rows, with matching symbols required on adjacent reels from the left across five fixed paylines.

Only the highest combination on an individual line is paid, while wins formed on separate enabled lines are added together before the round concludes.

Theme & Atmosphere

Classic, Fruit, and Retro themes define the symbol set, using familiar sevens, bells, stars, and fruit instead of a character-led setting.

The Star theme provides one of the higher-value symbols, while the red-gold treatment marks this edition as the 2021 entry in Endorphina's yearly line.

Fruit Retro Star Classic

Features & Win Potential

The Gamble option takes the form of a Risk Game that can double an eligible win, supplying the main decision after the direct payline result.

A successful Risk Game choice can be repeated, with the official rules allowing the current win to be doubled up to ten times before collection.

Gamble 3 Reels 96% RTP 5 Paylines Risk/Gamble (Double) game

Spec sheet

2021 Hit Slot at a glance.

Identity

Slot name2021 Hit Slot

StudioEndorphina

Released

Math

SlotRanker Score50

RTP96%

Max win—

Bet range$0.05 – $50.00

Player rating3.6 / 5 · 7 votes

Format

Reels3

Paylines5

Layout3x3

Features

Themes

Expected average based on this slot's 96% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$0.80

Cost per session$0.80

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 2021 Hit Slot? 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 (96.00%), 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 2021 Hit Slot

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Compare 2021 Hit Slot with other games

	2021 Hit Slot Score 50This game	Links of Fire Score 83	Runner Runner Popwins Score 81	Fever Spin Megaways Score 81	Jokrz Wild UltraNudge GigaBlox Score 81
Identity
Studio	Endorphina	Slingshot Studios	StakeLogic	iSoftbet	Bang Bang Games
Released	—	5/9/2022	6/30/2022	6/14/2024	6/15/2023
Math
RTP	96%	96.2%	96.5%	95.99%	96.1%
Volatility	—	High volatility	Medium/High	High volatility	High volatility
Max win	—	25,000×	10,000×	50,000×	7,216×
Format
Reels	3	5	5	6	6
Layout	3x3	5x3	5x3	6x7	6x4
Paylines	5	40	86 (Bothway)	117649	4096
Min bet	0.05	0.2	0.2	0.2	0.2
Max bet	50	20	20	20	20
Features
Progressive	—	—	—	—	—
Wild symbol	—	✓	✓	—	✓
Free spins	—	✓	✓	✓	✓
Scatter symbol	—	✓	—	—	✓
Multiplier	—	✓	✓	—	✓
Bonus game	—	✓	—	—	—
Respins	—	✓	—	—	—

Every number is shown as a delta against 2021 Hit Slot.

Comparing against

2021 Hit Slot

Endorphina

RTP

96%

Max win

—

Score

+ Wild+ Free Spins+ Scatter+ Multiplier+ Bonus Game+ Respins

Runner Runner Popwins

+ Wild+ Free Spins+ Multiplier

Jokrz Wild UltraNudge GigaBlox

+ Wild+ Free Spins+ Scatter+ Multiplier

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01Is 2021 Hit Slot part of a series?

Yes. Endorphina presents it as a follow-up carrying forward the legacy of its 2020 Hit Slot.

02How are regular wins formed?

Matching symbols must land on adjacent reels from the left across one of the five enabled fixed paylines.

03What special feature does the game have?

The Risk Game allows a qualifying win to be doubled repeatedly, with up to ten successful doubling steps listed.

04What is the RTP of 2021 Hit Slot?

The catalog records a 96% RTP for this low-complexity 3x3 fruit slot.

Series

2020 Hit Slot

View all 6 games

Game	Year	RTP	Volatility	Slot Score
2020 Hit SlotEndorphina	2020	96%	High volatility	62
2022 Hit SlotEndorphina	2022	96.03%	—	58
2023 Hit SlotEndorphina	2023	96.01%	High volatility	81
2023 Hit Slot DiceEndorphina	2023	96.01%	—	64
2024 Hit SlotLatestEndorphina	2024	96.05%	Low volatility	59
2021 Hit SlotCurrentEndorphina	—	96%	—	50