The Spaceman 50% cashout feature

Key takeaways

• According to the Game Help, the half left in play must be cashed out with the CASHOUT button before the round ends, or it is lost.
• A half cashed out at 2.00x returns an amount equal to the original stake: with a stake of 10, half (5) at 2.00x pays 10. A round that ends before that cashout is settled still loses the whole stake.
• In our calculation under the constant-RTP model at an assumed RTP (return to player) of 95.5%, half out at 1.50x and the rest at 3.00x has a standard deviation of 0.94 per unit staked, against 0.72 and 1.40 for full cashouts at those values.
• Pragmatic Play’s Crash Games page says Spaceman introduced the 50% cashout feature; that is the provider’s wording, not an independently verified claim.

How the Spaceman 50% cashout works

CASHOUT 50% is one of the two manual buttons available once a bet has been accepted for a round. The Game Help describes what a click on it does:

1. Half is settled The win on half of the bet is secured at the multiplier validated by the game server.
2. Half stays in play The other half remains in the round, and the bet field updates to show the new value.
3. The rest needs CASHOUT The remaining half has to be cashed out with the CASHOUT button before the round ends. If it is not, that half is lost.

Like the full CASHOUT button, CASHOUT 50% sends a payout request that is settled when the game server processes it, not at the number on screen at the click. That settlement is explained step by step in the cashout overview.

The Game Help describes a single bet per round and a single split of that bet: half first, the remaining half later. It describes no second bet panel; Spaceman vs Aviator sets this against Aviator’s in-game rules, which allow two bets at once through a second bet panel.

In payout terms, the split behaves like two half-size bets in the same round with two different exit points.

Where the feature comes from

Pragmatic Play’s Crash Games page, as checked on 2 October 2026, calls Spaceman “the original Pragmatic Play Crash Game” and says it introduced the 50% cashout feature. That is the provider’s wording, not an independently verified claim about the genre.

A worked example: half out at 2.00x

Take a stake of 10 units and a 50% cashout settled at 2.00x. Half of the stake is 5 units, and 5 units at 2.00x pays 10 units, which is the original stake. The other 5 units then ride on the rest of the round.

For a bet aimed at that split, three things can happen.

What happens	Total returned	Net result
The round ends before the 50% cashout is settled	0	−10
Half is settled at 2.00x; the round ends before the rest is cashed out	10	0
Half is settled at 2.00x; the rest is cashed out at 4.00x	30 (10 + 20)	+20

The middle row is specific to 2.00x: if the remaining half is lost after a first cashout there, the bet as a whole ends level. That is arithmetic about one outcome, not a statement about how likely it is.

Below 2.00x the first half does not cover the stake. A half cashed out at 1.50x returns 7.50 units from a 10-unit stake, so a bet whose second half is then lost ends 2.50 units down.

The first row never goes away. A round that ends before the first cashout is settled takes the whole stake, exactly as it would without the feature, and cashing out half says nothing about where the round will end.

What it does to variance and expected return

The split changes the variance of the bet, meaning how widely its results are spread.

To put numbers on this we use the constant-RTP model, in which the chance of a round reaching a multiplier x is roughly the RTP (return to player) ÷ x. This is a model, not a distribution published by Pragmatic Play. The figures below are our calculation at an assumed RTP of 95.5%, the figure in the Game Help; sources differ on Spaceman’s RTP.

The example: a stake of 1 unit, with half cashed out at 1.50x and the rest at 3.00x.

1. 150% cashout at 1.50x
2. 2cashout at 3.00x
3. 3round ends at 3.60x

Outcome	Modeled chance	Return per unit staked
The round ends before 1.50x: nothing is cashed out	36.3%	0
The round reaches 1.50x but not 3.00x: only the first half is cashed out	31.8%	0.75
The round reaches 3.00x: both halves are cashed out	31.8%	2.25

Weighted by those chances, the average return is 0.955 units per unit staked, the assumed 95.5%. The percentages are rounded, so they do not add up to exactly 100.

Cashout plan	Chance of any payout	Standard deviation	Expected return
Full cashout at 1.50x	63.7%	0.72	0.955
50% at 1.50x, rest at 3.00x	63.7%	0.94	0.955
Full cashout at 3.00x	31.8%	1.40	0.955

The split sits between the two full-cashout plans. It pays something as often as the 1.50x plan and keeps part of the larger payout of the 3.00x plan. The price is a smaller return, 0.75 per unit, in the rounds where only the first half lands.

For other pairs of values, with half cashed out at a and the rest at b, the variance per unit staked under the model is:

variance = RTP × (3a + b) ÷ 4 − RTP²

Here the RTP is written as a decimal, 0.955. For a = 1.50 and b = 3.00 the variance is about 0.88, and its square root is the 0.94 standard deviation in the table.

How the choice of target drives swings across the genre is covered under volatility. The “50% ladder”, the named approach built on this button, is compared with other cashout and staking approaches, without recommendation, on the Spaceman strategy page.

50% AUTO CASHOUT: the preset version

The same split can be set in advance. 50% AUTO CASHOUT is switched on during betting time, takes a value from 1.01x to 4999.99x, and pays at exactly that value instead of at a server-processed click. When AUTO CASHOUT is also on, the 50% value must be the lower of the two. The full set of rules is on the auto cashout page.

Sources

• Pragmatic Play — Spaceman Game Help, version 1.7 (change log to 10 July 2024), as distributed to licensed operators. Cited by name; operator-hosted copies are not linked.
• Pragmatic Play — Crash Games page (checked 2 October 2026)
• Spribe, Aviator in-game rules, as reproduced by licensed operators. Cited by name; not linked.
• Wang and Pleimling, Online Gambling of Pure Chance: Wager Distribution, Risk Attitude, and Anomalous Diffusion, Scientific Reports 9, 14712 (2019) (background for the constant-RTP model; it analyzes gambling logs for four types of game, crash among them, and none of the data are from Spaceman)
• Probabilities, standard deviations and the variance formula are our own calculations under the constant-RTP model. They are not published by the provider.