Double or nothing.
50/50, on Solana.
Flip SOL double or nothing at fair 50/50 odds. Every flip adds your favorite memecoin to the Stonk Pot.
How it works
Pick your fighter
Choose a memecoin. It’s your team, and your favorite ★ on every device.
Flip 50/50
Heads or tails, any amount. Wins pay double, straight to your wallet.
Grow the Stonk Pot
Every flip, win or lose, adds 3% of your stake to the pot, in your token.
Win it all
Every SOL you flip earns 3,500 tickets. One winner takes the whole pot: every token in it.
Fixed odds, not insider odds.
On a fresh launch you're exit liquidity. Here it's a fair coin flip, and our small fee pays back players through the Stonk Pot.
- ✕Supply bundled before you see the chart
- ✕Bots front-run your buy
- ✕The dev can dump any time
- ✕Insiders set your odds
- ✓Odds fixed by a hash
- ✓Your win reserved before you flip
- ✓Paid to your wallet in seconds
- ✓Every flip re-checked in your browser
Don't just trust us.
Check every flip.
Before you bet, we lock in a secret number and show you its fingerprint. Your browser picks its own random number, and the Solana program mixes the two to decide heads or tails, so neither side can pick the result. Your browser then re-checks every flip and marks it ✓ in Recent flips: proof no one changed the result.
// settlecommit == sha256(server_seed)h = sha256(server_seed ‖ client_seed ‖ bet_id)outcome = h[0] & 1 // 0 = heads, 1 = tailswon = outcome == side
- 01Server commits: c = sha256(s)The server locks in its secret seed before it sees yours.
- 02You seed: k ← random(32)Your browser adds its own random seed, so the server can’t pick a winner.
- 03Program settles: h[0] & 1The on-chain program checks the commit, hashes both seeds and pays in one step.
- 04You verify: recompute(s, k, id)Your browser re-checks every flip and marks it ✓. The code is open source in lib/fairness.ts.
FAQ
Is it really 50/50?+−
Yes. Your browser’s random number and ours are mixed to decide every flip. The tokens on the coin never touch the odds.
What do I win?+−
Nearly double your stake, paid straight to your wallet in seconds.
How does the Stonk Pot work?+−
Every flip, win or lose, adds 3% of your stake to the pot, in your token, and earns you 3,500 tickets per SOL. One ticket is drawn, and its holder takes every token in the pot.
How do I pick my token?+−
Tap your fighter above the game and search StonkFun’s top tokens, added daily. Your pick becomes your favorite.
Could you rig a flip?+−
No. We lock in our number before you bet, and the Solana program won’t pay out unless it matches.
Which wallets work?+−
Phantom, Solflare, Backpack and other standard Solana wallets.
What are the limits?+−
0.001 SOL minimum. The maximum is 1% of the free bankroll.
Where is my SOL while a flip is pending?+−
In the program-owned bankroll on Solana, with your win already set aside.
What is Priority?+−
Solana’s priority fee, capped at 0.001, 0.005 and 0.01 SOL (or up to 0.1 SOL manually). You pay it.
- ■Every flip adds your token to the Stonk Pot.
- ■Before the coin flips, your payout is set aside on chain, so every win gets paid.
- ■It’s a game of chance. Only play what you can afford to lose.
PICK YOUR FIGHTER.
Every flip backs your memecoin. One winner takes the Stonk Pot.