Rules
How is the price set?
There's one crown. Whoever holds it paid some amount X. To take it from them, you pay exactly 2×X. The very first challenger pays the starting bid shown on the homepage.
What do I get for paying?
The crown: your name/handle, link, and taunt shown on the homepage as long as you hold it, plus a permanent line in the doubling history. There is no cash prize, payout, or pot — you're paying for the spot, not entering a lottery.
What happens if two people double at the same time?
Only one payment can be strictly higher than the current amount at the moment it's confirmed. If your payment clears a moment after someone else already doubled, you don't take the crown — and your payment is not refunded. That risk is the whole point of "double or nothing."
Can I get a refund?
No. Every payment is final, whether you win the crown or get outraced. Don't pay more than you're comfortable losing.
Can I double my own bid?
Yes — if no one has taken the crown from you yet, you can still pay to double your own amount, though there's no reason to.
What links/content are allowed?
Nothing illegal, no malware/phishing links, no harassment or hate content. We reserve the right to remove a champion entry that violates this without a refund.
Who processes payments?
Checkout and card processing are handled entirely by our payment provider (LemonSqueezy or Polar.sh), acting as merchant of record. We never see or store your card details.