Getting started
How to play
Pick your numbers, pay $1 a line, and check the result.
Good to know
The app is a preview for now. It doesn’t connect a wallet or use real money. Try the app.
Buy a line#
A line is one entry: 5 numbers plus a bonus ball. Each line costs $1, paid in USDT0, a dollar stablecoin. Your wallet also pays a small network fee.
- Open a Highroll app and connect your wallet.
- Choose Quick Pick, or pick 5 numbers and a bonus ball yourself.
- Choose how many lines you want.
- Check the total and confirm.
Sometimes only Quick Pick works
Right after a round closes, the next round may still be setting its prizes. You can pick your own numbers once that’s done.
For developers
Your receipt uses the round ID and batch ID. A batch is every line bought in one purchase. Quick Pick numbers come from the confirmed purchase. Chosen numbers are recorded as a commitment. While bonusMax is 0, buyChosen reverts with ConfigurationPending.
The draw#
Each round has a closing time. After it closes, no more lines can join. The winning numbers are drawn, and then the results are checked.
At launch there is one draw a day. The test network draws every hour. Your app shows the exact closing time.
Heads up
On the test network, winning numbers come from a trusted operator, not the final random source. See Fair draws.
Check and claim#
When results are ready, your app shows your numbers next to the winning numbers. If you won, claim the prize, then withdraw it to your wallet.
Winners get the full prize credit. Highroll takes no fee from winnings. More on claiming.
Good to know#
- Purchases are final. There are no refunds or cancellations.
- More lines means more chances, never a sure win.
- Buying the same numbers twice doesn’t cover a different result.
- Prizes and odds can change from round to round.
- Only spend what you can afford to lose.