100HP Gaming · Crash game
A red rocket climbs, a multiplier ticks upward beside it, and at some unknown point the flight ends. Astronaut asks one question per round — how long do you stay on board? Try the free demo below, then read how the two bet panels, automatic withdrawals and promo-code free bets actually behave.

The demo cabinet didn't load here. You can open the real-money game straight from the casino lobby.
Open AstronautDemo by 100HP Gaming. It runs on a virtual balance: nothing you win here can be withdrawn, and nothing you lose costs money.
Welcome package for new players
Promo code ASTR100018+ · Terms apply · New players only
Every row below comes from 100HP's own game card and the rules panel inside the game.
Search for this game and you will find pages that agree with each other far more than they agree with 100HP. Four claims come up again and again; here is how each one compares with the rules panel you can open inside the game.
The pattern matters more than any single figure. A page that quotes two different "maximum wins" or describes features you cannot find in the game is guessing, and the same page is usually the one selling a betting system a few paragraphs later.
The screen is deliberately sparse. A dark sky fills the centre, a red rocket traces a rising curve, and one large number tells you where the multiplier stands. Everything else sits around the edges: the bet panels underneath, a live feed of other players' bets on the left and the chat on the right.
That crowd is part of the design. Each round is shared by everyone online at the same moment, so you see other people cash out — or ride too long — while your own decision is still open. Players can post emojis and GIFs, and share a win straight into the chat.

Every round starts at 1.00x and climbs from there. Nobody — not you, not the other players, not the casino — knows in advance where the flight will end, and the end point is the only thing that decides whether a bet wins.
The strip of coloured numbers above the game is the history of recent flights. In the demo it shows rounds that went well past 50x next to rounds that ended at 1.00x, the moment the rocket left the ground. Both are normal, and neither tells you anything about the next flight.
Fairness is handled by a Provably Fair mechanism: round results can be checked after the fact, so a flight cannot be adjusted to suit the bets placed on it.
Green: you leave in time. Past the end of the red line, the bet is gone.
Two independent stakes per flight. A common pattern is a small exit target on one panel and a longer ride on the other.
Places your stake automatically every round. Withdrawing is still up to you — Autobet does not cash out on its own.
Set a multiplier and the game withdraws for you the moment it is reached. In the demo it starts at 2.00x.
Live shows bets in real time, My keeps your own history, and Top ranks other players' wins by amount and multiplier over different periods.
Moderated: links, channel ads and "signals" about upcoming rounds are banned, and breaking the rule can cost a temporary or permanent ban.
100HP keeps the prize history open, so the big wins on the board are visible rather than claimed.

Operators can hand out Astronaut free bets through promo codes. A free bet flies exactly like a normal one, but nothing comes off your real balance.
The winnings are the free-bet amount multiplied by your cash-out point, and they are collected together and credited to the casino's bonus balance once the set is finished. Some offers add a minimum or maximum withdrawal multiplier, or cap the total payout — check the offer's details before the first flight.

The cabinet at the top of this page is 100HP's own demo. It is the same game with the same controls, so it is the right place to learn the rhythm of a round, try both panels and see how Autowithdrawal behaves.
What it cannot teach is how a loss feels when it is real money, and that is exactly where most players change their plans. Use the demo to settle your exit points while nothing is at stake, then keep them.
Astronaut opens in a phone browser inside the casino's site, with the same two panels and the same chat as on desktop. It was built to stay light, which helps on weak connections.
A dropped connection is still your risk, not the casino's: if the link fails mid-flight, the operator is not responsible for the lost bet. Play on a stable signal when you have stakes in the air.
Be careful with anything offered as an "Astronaut app" or APK file. Installers named after popular crash games are a common way for lookalike sites to collect logins and card details. Use the casino's own site or an official app store.
Welcome package for new players
Promo code ASTR100018+ · Terms apply · New players only
Welcome bonuses are written for the whole casino, not for one crash game. Before you spend bonus money on Astronaut, look for three lines in the terms: whether crash games count toward wagering at all, what share of each stake counts if they do, and whether a maximum bet applies while the bonus is active. A promo code changes the package you get; it does not change how the rocket flies.
Every flight is independent, so no pattern of bets can push the odds your way. What you can control is how long your money lasts and when you stop.
you want the purest form of a crash game: quick rounds, one decision, a public demo to practise on and a crowd to share it with.
you want bonus rounds, features or a story. Astronaut is one mechanic repeated, and long sessions can feel the same from flight to flight.
All bets and payouts for that round are cancelled, and affected players are refunded their stakes within one hour.
No. Once free bets are accepted, every one of them has to be played before real-money betting opens again.
They expire at the end of their validity period. Winnings only pay out once the whole set is played, so unfinished free bets can cost you what the others won.
If the round result can't be obtained, that free bet is settled at x1.00.
Yes. 100HP's rules allow free bets to be withdrawn at its discretion, and accepting them means accepting that condition.
5 November 2026
Facts on this page come from 100HP's game card and the rules panel inside Astronaut; the demo was played to confirm how the controls behave. Images belong to 100HP Gaming.
Astronaut is a real-money game of chance, and a fast one. Set a deposit limit before you start, treat losses as the price of the entertainment and never chase them. If gambling stops being fun, free and confidential help is available in most countries.
This is an independent affiliate site. We earn a commission when you register through links on this page; that does not change what the page says about the game.