Fastspin

Alien Smash

Expanding science-fiction ways slot driven by repeated avalanches

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

96.7%

return to player

Volatility

—

variance

Max win

—

top multiplier

Min bet

$0.20

per spin

Reels

3125 lines

Player rating

4.3 ★

2 votes

DEMO Play free, no signup

Fastspin

Embed on your site

4.3 / 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 96.7% → 9.0/10

Volatility8/10imputed

imputed medium (unknown) → 8.0/10

Win Potential—

no data

Features10/10

14 features → 10.0/10

Game Mechanics7.8/10

f=14 r=5 p=3125 → 7.8/10

Context signals (tie-breakers)

Layout5/10

5x5 → 5.0/10

Bet Flexibility8/10

0.2–500 (×2500) → 8.0/10

Provider Reputation6.7/10

provider avg 6.7 → 6.7/10

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: 76 — Alien Smash by Fastspin

https://slotranker.com/fastspin/alien-smash#score

How to cite

Slot Summary

The usual fixed-grid ways format becomes elastic in Alien Smash. Fastspin begins the science-fiction game on a 5x5 field with 3,125 ways, removes winning symbols for cascades, and lets the reel set grow as wins continue. A 96.7% RTP and medium volatility frame a design whose main interest is the shift from ordinary Space play into a larger Free Spins field.

How It Plays

Alien Smash starts on a 5x5 field with 3,125 ways. Each win removes its symbols through the Avalanche mechanic, allowing replacements to fall and create another evaluation.

Successful cascades can add positions above winning reels, changing the field during the sequence. The base game can grow vertically before the Free Spins round raises the limit again.

Theme & Atmosphere

Sci fi and Space supply the outer setting, while UFO imagery gives the game a playful invasion subject rather than a realistic spaceflight tone.

The alien theme matches the expanding field neatly: each Avalanche makes the screen feel less stable, as if the ordinary grid is being altered by the encounter.

Space UFO Sci fi

Features & Win Potential

Avalanche and Cascading mechanics clear successful symbols, while Reelset Changing adds new positions. Random Multipliers can then alter the value of later wins in the sequence.

Cash Collector and Fixed Jackpots provide prize routes beyond the expanding field. Wild and Scatter symbols retain familiar roles while the Additive symbol changes available space.

Multiplier Scatter Symbol Wild Symbol Cascading Bonus Game Multiway (+1024)Bonus symbols Avalanche Free Spins Multiplier Random multiplier Fixed Jackpots Cash Collector Reelset Changing Additive symbol

Bonus & Free Spins

Three, four, or five Scatters award 10 Free Spins. The field can expand to 5x8 during the feature, creating as many as 32,768 ways.

Free Spins Multipliers attach to a randomly selected high-paying or low-paying symbol for the duration of the feature, adding value without replacing the Avalanche sequence.

Spec sheet

Alien Smash at a glance.

Identity

Slot nameAlien Smash

StudioFastspin

Released2/2/2025

Math

SlotRanker Score76

RTP96.7%

Max win—

Bet range$0.20 – $500.00

Player rating4.3 / 5 · 2 votes

Format

Reels5

Paylines3125

Layout5x5

Features

Themes

Expected average based on this slot's 96.7% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$2.64

Cost per session$2.64

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 Alien Smash? 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 (96.70%), 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 Alien Smash

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Compare Alien Smash with other games

	Alien Smash Score 76This game	Monster Wins Score 81	Space Donkey Score 81	Reactoonz Score 80	Space Wars XXXtreme Megaways Score 80
Identity
Studio	Fastspin	NextGen	NoLimit City	Play'n Go	NetEnt
Released	2/2/2025	6/22/2016	10/3/2023	10/24/2017	8/13/2024
Math
RTP	96.7%	97.12%	96.07%	96.51%	96.14%
Volatility	—	High volatility	High volatility	High volatility	High volatility
Max win	—	—	14,649×	4,570×	14,400×
Format
Reels	5	5	6	7	6
Layout	5x5	5x4	6x4	7x7	6x7
Paylines	3125	1024	46656	7	117649
Min bet	0.2	0.5	0.2	0.2	0.4
Max bet	500	100	200	5	32
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	—	✓	✓	✓	—
Scatter symbol	✓	✓	✓	—	—
Multiplier	✓	—	✓	✓	—
Bonus game	✓	✓	✓	—	—
Respins	—	—	—	—	✓

Every number is shown as a delta against Alien Smash.

Comparing against

Alien Smash

Fastspin

RTP

96.7%

Max win

—

Score

+ Free Spins− Multiplier

+ Free Spins− Scatter− Bonus Game

Space Wars XXXtreme Megaways

+ Respins− Scatter− Multiplier− Bonus Game

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01What is the RTP and volatility of Alien Smash?

Alien Smash has a listed RTP of 96.7% and medium volatility. Its base field starts with 3,125 ways to win.

02How does the Alien Smash field expand?

Winning symbols disappear through the Avalanche mechanic, replacements fall, and successful sequences can add positions above the reels. The bonus field can reach 5x8.

03How are Free Spins triggered?

Three, four, or five Scatters award 10 Free Spins. Symbol Multipliers then attach to a selected high-paying or low-paying symbol for the feature.

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