01Live demo
Try it in a casino lobby
Events from the gamewaiting for ready
Try it live: https://baizestudio.com/for-casinos/updraft
02The game
How it plays, and where it fits.
The game
- What the player does
- A striped hot-air balloon climbs from a meadow through cloud, sunset and stars as a shared multiplier rises. Every bet hangs under the basket as a parcel; each player releases theirs to cash out, by hand or at an auto target. When the balloon pops, any parcel still aboard is lost.
- Why players come back
- Releasing a parcel on a little parachute is a cash-out anyone reads at a glance, and the room’s parachutes fill the sky as players drop out. The balloon climbs at one steady pace and the rules say the scenery shows height, not risk.
- Round structure
- Shared timed round. 7 s to bet, then the multiplier climbs until the round ends; each player cashes out by hand or at an auto target before it does.
- Session fit
- Quick or long sessions. Social: the whole room plays the same round. Timed rounds.
- Stakes in this build
- 1 to 100 demo credits. Whole credits, 1 to 100 per bet, up to two bets per round.
In your lobby
- Lobby category
- Instant: crash, shared rounds
- Suggested placements
- Crash and instant category
- New-games rail
- Streamer and creator campaigns
- Tournaments on highest cash-out multiplier
- Features
- Release-a-parcel cash-out: Bet 1 and Bet 2 hang as tagged parcels and float down on parachutes with their multiplier, under a LANDED stamp
- Two bets per round, each with its own auto cash-out
- Half: take half the stake off at the current multiplier and leave the rest in
- Provably fair: a SHA-256 seed chain, with one-tap verify of any round inside the game
- Shared rounds on a server clock, with a live room feed
- Simulated demo players, always labelled Demo (off on request)
- Auto bet for up to 10 rounds, hidden in the UK profile
- Stream-safe mode hides amounts and keeps multipliers
- Keyboard play
- Devices and sizes
- Desktop and phone, portrait and landscape. Canvas 2D drawn in code, no 3D library and no image files, about half the first load of the 3D crash games; needs a live connection to the Baize server. Fills any iframe from 320x480 up; checked at 1920x1080, 1280x720, 1024x768, 800x600, 844x390, 390x844 and 360x640.
03The maths
Every number, from the code.
| Mode | RTP | House edge | Hit rate | Net win | Volatility (SD) | Max win | GGR / 1,000 rounds |
|---|---|---|---|---|---|---|---|
| Auto cash-out at 1.50x | 97.00% | 3.00% | 64.67% | 64.67% | Low (0.72) | 1.50× | 30.00 |
| Auto cash-out at 2.00x headline | 97.00% | 3.00% | 48.50% | 48.50% | Low (1.00) | 2.00× | 30.00 |
| Auto cash-out at 10.00x | 97.00% | 3.00% | 9.70% | 9.70% | Medium (2.96) | 10.00× | 30.00 |
| Auto cash-out at 100.00x | 97.00% | 3.00% | 0.97% | 0.97% | High (9.80) | 100.00× | 30.00 |
| Hold to the 10,000x cap | 97.00% | 3.00% | 0.01% | 0.01% | Very high (98.48) | 10,000× | 30.00 |
Crash odds
One shared round for the whole room. The multiplier climbs as e0.12t (2× at 5.8 s, 10× at 19.2 s, 100× at 38.4 s) and the round ends at its crash point, fixed before betting opens. A cash-out at any target k pays k times the stake with probability RTP / k, so every target, manual or automatic, returns the room’s RTP to within 2.3 × 10−12. The chance the round ends in the next second is 11.3% at every height: nothing about the climb predicts the end.
| Room RTP | Ends at 1.00× | Reaches 2.00× | Reaches 10.00× | Reaches 100.00× | Reaches 1,000× | Reaches 10,000× |
|---|---|---|---|---|---|---|
| 96% | 4% | 48.0% | 9.6% | 0.960% | 0.0960% | 0.0096% |
| 97% default | 3% | 48.5% | 9.7% | 0.970% | 0.0970% | 0.0097% |
| 98% | 2% | 49.0% | 9.8% | 0.980% | 0.0980% | 0.0098% |
The house edge comes only from rounds that end at 1.00× before anyone can cash out (3% at the default 97%). A round that reaches the 10,000× cap pays the cap on every bet still in; 1,000× and 5,000× caps are built too and leave the RTP unchanged. Auto cash-out targets run from 1.01× to the cap and pay exactly their target. RTP and cap are per room, so every player in a round sees the same result; this build runs Updraft, Topple, Snip and Crash in one room. In a 10 billion round simulation at 97%, all 21 strategies tested, including two bets, half cash-outs and doubling after a loss, had a 95% interval containing 97%.
Pace
18.6 s a round, about 194 rounds an hour (range 10.5 s to 88.8 s). Server round clock: 7 s betting, the climb (expected 8.1 s from the exact crash distribution; 0 s for an instant end, 76.8 s to the cap), then 3.5 s with the result (5 s after the cap).
GGR / 1,000 rounds is the theoretical gross gaming revenue from 1,000 rounds at a total stake of 1.00: house edge × 1,000. Volatility is the standard deviation of one round’s total return per 1.00 of total stake. Low under 1.5, Medium 1.5 to under 5, High 5 to under 15, Very high 15 and over. For scale: an even-money roulette bet is 1.00, a straight-up number 5.84.
04Configuration
Configuration and status
Operator settings today
- Launch parameters: lobby URL for the home button, starting sound, the UK profile (
?jurisdiction=uk) - Frame size and sandbox attributes
- Framing allowlist for your domains (set by Baize per deployment)
On request
- Stake limits and quick stake values
- Currency label and decimals
- RTP: 97% (default), 96% and 98% are built. RTP is set per room, not per player, because everyone in a round sees the same crash point; Topple, Snip, Crash and Updraft share one room. The 10,000x top multiplier can be 1,000x or 5,000x instead; no cap changes the RTP.
Demo-credit build, not certified. Rounds are dealt on the Baize server. See status for what real-money use needs.