Spaceman vs Aviator: what actually differs
Spaceman (Pragmatic Play) and Aviator (Spribe) are both crash games. A multiplier climbs from 1.00x, you cash out before it stops, and if you wait too long the round ends and the bet is lost. Because the basic loop is the same, readers often ask which one is "better". This article compares only what can be checked, puts a price on the one numerical gap between them, and separates differences that matter from those that do not.
This site is independent and is not affiliated with Pragmatic Play or Spribe. Nothing here is a recommendation to play either game.
Side-by-side comparison
The table below lists only facts that are published by the developers or that are widely documented. Where a detail varies by casino, it says so.
| Feature | Spaceman | Aviator |
|---|---|---|
| Developer | Pragmatic Play | Spribe |
| RTP (theoretical) | 96.5% | 97% |
| House edge | 3.5% | 3% |
| Maximum multiplier | 5,000x | Check the rules screen of the casino you use |
| Partial cash-out | Yes, part of the bet can be taken while the rest stays in play | Not a core feature; check the rules screen |
| Fairness model | Certified RNG, not provably fair | Provably fair (cryptographic check) |
| Released | March 2022 | Earlier than Spaceman |
Things deliberately left out: minimum and maximum bets, number of casinos offering each game, and round speed. These are set by each operator or change over time, and I could not confirm them from a reliable source. Treat any site that gives you exact figures for them with caution.
Operator note: the RTP shown in the rules screen of the casino you actually use is the one that applies. Some games can be offered with more than one RTP setting, so always read that screen.
What the 0.5 point RTP difference costs
RTP is the share of all wagered money a game returns over a very long run. A 96.5% RTP means a 3.5% house edge. A 97% RTP means 3.0%. The gap is 0.5 percentage points.
Expected cost per amount wagered
Expected loss is simply the total wagered multiplied by the house edge.
| Total wagered | Spaceman (3.5%) | Aviator (3.0%) | Gap |
|---|---|---|---|
| 100 units | 3.5 units | 3.0 units | 0.5 units |
| 1,000 units | 35 units | 30 units | 5 units |
| 10,000 units | 350 units | 300 units | 50 units |
So the extra cost of Spaceman is 0.5 units for every 100 units wagered. A session of 200 rounds at 1 unit per round (200 units wagered) has an expected loss of 7 units on Spaceman and 6 units on Aviator.
How to read these numbers
- They are long-run averages, not predictions. In a single session the actual result is dominated by luck. You can lose far more than the expected figure, or win.
- Both games have a negative expected value for the player. The question is only whether the cost is 3.0 or 3.5 per 100 wagered.
- Total wagered is not the same as money lost or deposited. If you stake 10 units and re-stake winnings, wagered amounts grow quickly.
For a deeper look at how RTP is built, see Spaceman RTP explained.
Chances of reaching a target multiplier
If a crash game is designed so that every cash-out target has the same RTP, the chance that a round reaches multiplier m is roughly RTP divided by m. This is a simplified model for illustration. The exact distributions are set by each game's maths and I do not claim to know them beyond the published RTP.
| Target | Spaceman (96.5%) | Aviator (97%) |
|---|---|---|
| 2x | about 48.3% | about 48.5% |
| 5x | about 19.3% | about 19.4% |
| 10x | about 9.7% | about 9.7% |
The point is how small the gap is. Between the two games the chance of any target moves by a fraction of a percentage point. Nothing in your playing style would be noticeable at that scale.
Differences that matter
1. How fairness is checked
Aviator is provably fair: a player can check a round's result against cryptographic values the game exposes. Spaceman is not provably fair. It relies on an RNG that has been tested and certified by independent labs, and on the licence and audits of the operator.
These are two different trust models, not a good game and a bad game. Provably fair lets you verify that a result was not changed after the fact. It does not change the RTP and does not make the game winnable. For the Spaceman side, read how Spaceman fairness works.
2. Partial cash-out
Spaceman lets you cash out part of a bet while the rest keeps running. This changes how you can manage a single round, for example locking in some return while leaving some exposed. It does not change the house edge. Splitting a bet into two cash-outs produces a mix of two outcomes with the same expected value.
3. The cap on winnings
Spaceman has a maximum multiplier of 5,000x. Reaching anything close to that is extremely rare, so the cap has little effect on ordinary play. Check the rules of whichever game you play for its exact limit.
4. The RTP gap, if you play a lot
Over thousands of rounds the 0.5 point gap becomes a measurable cost (see the table above). It is still small compared with the normal swings of a session.
Differences that do not matter
- Theme and graphics. An astronaut or an aeroplane has no effect on the maths.
- Which game is newer or more popular. Popularity says nothing about your odds.
- Past rounds. Every round is independent in both games. A long run of low multipliers does not make a high one more likely next time.
- Prediction tools. "Predictors", "signals" and bots do not work on either game. They are scams or simply wrong. For more, see the Spaceman predictor guide.
- Strategy. No betting pattern changes the house edge in either game.
Practical points before choosing
- Read the rules screen for the RTP and limits at your casino, not a summary on any website.
- Decide a [loss limit](/spaceman/spaceman-bankroll) first, in money you can afford to lose, and keep to it.
- Treat cost as the price of entertainment, not a way to earn income.
- If comparing more than two games, the Spaceman, Aviator and JetX comparison puts all three side by side.
Summary
Aviator has a 0.5 point higher published RTP and is provably fair. Spaceman has a lower RTP, a certified-RNG fairness model, and a partial cash-out option. The RTP gap costs 0.5 units per 100 wagered on average. Neither game can be beaten, and the choice is mostly about the features you like and the rules at your licensed operator.
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Responsible gambling: This article is educational and is not advice. Play only if you are an adult where it is legal, and only with money you can afford to lose. If gambling is causing problems, contact BeGambleAware or Gamblers Anonymous.