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CosmoX Crash Game Review & Free Demo

By · ✓ Fact-checked by Daniel Foster · Last updated October 5, 2025

CosmoX crash game by Onlyplay

18+ · Demo mode, no real money

CosmoX key facts

Provider
Onlyplay
RTP
97%
House edge
3%
Volatility
High
Max multiplier
—
Min bet
1
Max bet
50
Release date
November 12, 2024
Provably fair
—
Mobile
Yes

“—” means we have not verified this figure yet. We never guess.

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How CosmoX works

Like every crash game, CosmoX starts each round at 1.00x and the multiplier climbs until it crashes at a random point. Place your bet before take-off and cash out before the crash to win your stake times the multiplier on screen. Auto cash out locks in a target for you, so the round plays itself.

RTP & odds explained

Your win chance at any target is the RTP divided by the multiplier. Here's how often each target hits over the long run, so you can pick your style: steady low targets or big multipliers.

Win chance at each multiplier at 97% RTP
TargetWin chanceAbout 1 in
1.20x 80.8% 1.24
1.50x 64.7% 1.55
2.00x 48.5% 2.06
5.00x 19.4% 5.15
10.00x 9.70% 10
100x 0.97% 103

Best strategies for CosmoX

Pick the play style that fits your bankroll, then set it up in seconds. Start with the guides players read most:

Provably fair check

We have not yet verified whether CosmoX offers a provably fair check. Every round's server seed is hashed and published before take-off, so you can check afterwards that nothing changed. Paste the revealed seeds into our verifier and recompute any round yourself.

How provably fair works

Where to play CosmoX in your country

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Payment methods in your country

Availability depends on the casino. Check fees and limits in the cashier before you deposit.

Aviator on 1xBet: how to play and win

More from Onlyplay

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Frequently asked questions

What is the RTP of CosmoX?

CosmoX has an RTP of 97%, which means a house edge of 3%. Over many rounds, 97% of all stakes go back to players.

Who makes CosmoX?

CosmoX is made by Onlyplay.

Can I play CosmoX for free?

Yes. Hit Play at the top of this page to load the free CosmoX demo. It uses demo credits, so no real money is involved.

Can I play CosmoX on mobile?

Yes. CosmoX runs in your phone browser on Android and iPhone, no app needed.

Alex Morgan

By

Casino & Crash Game Reviewer

Alex specialises in online casino reviews, crash game platforms and operator comparisons. He focuses on assessing game fairness, usability, payment processes and overall player experience.

  • Crash game reviews
  • Casino and operator comparisons
  • Game fairness
  • Payment methods

✓ Fact-checked by Daniel Foster (Crash Game Maths & Mechanics Analyst)

Updated

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Sources

  1. SlotsLaunch game catalogue (checked November 1, 2026)
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