Endorphina

2027 ISS

Slots Video Slots Action & Adventure Space Futuristic Vegas Fantastic Sci fi

Futuristic Space slot linking fuel management to indefinite Free Spins

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

Medium volatility

variance

Max win

—

top multiplier

Min bet

$9.00

per spin

Reels

9 lines

Player rating

3.9 ★

6 votes

DEMO Play free, no signup

Endorphina

Embed on your site

3.9 / 5

6 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

Volatility8/10

medium → 8.0/10

Win Potential—

no data

Features7/10

9 features → 7.0/10

Game Mechanics5/10

f=9 r=5 p=9 → 5.0/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility2/10

9–90 (×10) → 2.0/10

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: 59 — 2027 ISS by Endorphina

https://slotranker.com/endorphina/2027-iss#score

How to cite

Slot Summary

Risk the result or bank it: that post-win choice gives 2027 ISS a decisive action outside its regular 9-line spins. Endorphina’s 2017 release uses a Futuristic Space story inspired by the International Space Station and the first human spaceflight, then changes pace through Free Spins governed by fuel and hyperspace symbols. With 96% RTP and medium volatility, its theme is carried by rules rather than scenery alone.

How It Plays

The base game uses a 5x3 layout and 9 paylines, with the Wild Symbol substituting for standard paying symbols while Scatter Symbols operate separately.

After an eligible award, the player can take the Risk/Gamble option and attempt to double it. Losing that decision forfeits the amount placed at risk.

Theme & Atmosphere

Sci fi and Space shape the premise as a future International Space Station mission, while the 2017 release links that fiction to the history of human spaceflight.

The Futuristic treatment becomes most concrete in the fuel meter, hyperspace events, and astronaut Wild, giving Action & Adventure language a direct connection to play.

Action & Adventure Space Futuristic Vegas Fantastic Sci fi

Features & Win Potential

The Wild Symbol substitutes for ordinary pay symbols, while Scatter Symbols provide independent awards and access to Free Spins rather than following the standard paylines.

Multiplier rules strengthen the Free Spins phase, and the optional Risk/Gamble game supplies a separate double-or-lose decision after qualifying base-game results.

Free Spins Multiplier Scatter Symbol Wild Symbol Medium volatility 5 Reels 96% RTP Risk/Gamble (Double) game 3D

Bonus & Free Spins

Free Spins use an x3 Multiplier and continue while fuel remains. Fuel symbols extend the supply, while Hyper Space Jump symbols alter the meter as the round proceeds.

Because the round’s length is controlled by fuel rather than a fixed spin award, the Scatter-triggered feature ends only after the meter has been depleted.

Spec sheet

2027 ISS at a glance.

Identity

Slot name2027 ISS

StudioEndorphina

Released4/12/2017

Math

SlotRanker Score59

RTP96%

VolatilityMedium volatility

Max win—

Bet range$9.00 – $90.00

Player rating3.9 / 5 · 6 votes

Format

Reels5

Paylines9

Layout5x3

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$144.00

Cost per session$144.00

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 2027 ISS? 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 (96.00%), 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 2027 ISS

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Compare 2027 ISS with other games

	2027 ISS Score 59This game	Star Bounty Score 78	Illogicool Score 77	Astro Legends: Lyra and Erion Score 75	Deep Space Conquest Score 72
Identity
Studio	Endorphina	Pragmatic Play	ELK Studios	Foxium	Urgent Games
Released	4/12/2017	9/3/2020	2/1/2022	11/21/2018	7/12/2023
Math
RTP	96%	95.54%	95%	96.4%	97.05%
Volatility	Medium volatility	High volatility	High volatility	High volatility	Medium volatility
Max win	—	25,000×	10,000×	—	6,400×
Format
Reels	5	6	6	5	5
Layout	5x3	6x4	6x6	5x5	5x3
Paylines	9	4096	46656	Cluster (3 or more adjacent symbols)	20
Min bet	9	0.2	0.2	0.1	0.1
Max bet	90	100	100	10	50
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	—	✓
Scatter symbol	✓	✓	✓	—	—
Multiplier	✓	✓	✓	✓	—
Bonus game	—	—	—	—	✓
Respins	—	✓	—	✓	—

Every number is shown as a delta against 2027 ISS.

Comparing against

2027 ISS

Endorphina

RTP

96%

Max win

—

Score

Astro Legends: Lyra and Erion

+ Respins− Free Spins− Scatter

+ Bonus Game− Scatter− Multiplier

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