Your Chance to Win – Enter Now!!
⚡ Live Bitcoin Competitions
Answer the Question, pay in sats, and be in with a chance to win! 🚀
Loading BTC price...
🟠 What Are Your Odds?
Current BTC Price: $--
Entry: 2,100 sats (≈ $--)
| Draw | Your Odds | Others (Comparison) |
|---|---|---|
| 🟠 0.021 BTC Draw ($--) |
1 in 2,100 | Local 4-number lottery: 1 in 10,000 |
| 🟠 0.21 BTC Draw ($--) |
1 in 21,000 | General raffle sites: 1 in 100,000+ |
| 🟠 2.1 BTC Draw ($--) |
1 in 210,000 | UK National Lottery: 1 in 45 million |
✓ Better Odds. Better Money.
How it works
Choose your competition
Select your competition and check out all the details about it.
Answer the question
Submit your answer and pay. You will receive your draw number(s)
The Excitement Begins!
You're in with the chance to win - Look out for the next draw!
🏆 21 STACKER Winners!
Real players. Real Bitcoin wins. See who’s stacking sats!
🎉 View Winners
Question? Check our FAQs!
All paid entries are made using Bitcoin via the Lightning Network. It’s fast, secure, and ensures provably fair competition entry. A GBP, EUR & USD equivalent value is displayed for each draw.
21Stacker uses a transparent draw system that combines a pre-published server seed with a publicly available Bitcoin block hash. This process ensures that no one can manipulate the outcome, and every entrant can verify the result.
Each competition clearly states the maximum number of entries per person. Typically, this is capped for each draw in order to keep draws fair and balanced.
Only correct answers qualify for entry. If you answer incorrectly, your entry won’t be processed and no payment will be taken.
We’ll contact you by email and may ask for proof of age and residency. Once verified, your prize (Bitcoin) will be transferred to the Bitcoin wallet address you provide.
Winners have 7 days to complete verification and claim their prize. If not, the prize will be forfeited, and a new winner will be selected.
Yes. To receive your prize, you’ll need an on-chain Bitcoin wallet. Entry fees are paid through the Lightning Network, so you’ll also need a Lightning-enabled wallet for purchases.
Yes, Bitcoin’s price can go up or down. All prizes are paid in Bitcoin only, and 21Stacker is not responsible for changes in value after transfer.
Competitions are open to residents of the UK and Ireland aged 18 or over. Entrants outside these regions may not be eligible to participate.