Plinko
Drop a ball through a pyramid of pins. At each row it bounces left or right, and it lands in one of the buckets along the bottom, which pays your bet × its multiplier.
How To Play
- Set your bet with − and +, halve or double it with ½ and 2x, type an amount, or pick one from the list. Bets range from $0.10 to $100.00.
- Choose the Risk: Low, Medium or High. Higher risk pays more at the edges and less in the middle.
- Choose the number of Rows of pins, from 8 to 16. More rows make the edges harder to reach, and pay more for reaching them.
- Press Play to drop a ball. Your bet is taken as it drops. You can drop another ball while others are still falling, up to five a second.
Winning
- Each bucket shows its multiplier. Green buckets pay back your bet or more; yellow buckets pay back part of it.
- Your win is added to your balance when the ball lands.
- Every ball's path is decided when you drop it; the animation only shows it.
- Bet, risk and rows can't change until every ball has landed.
Example: $2.00 at Medium risk with 12 rows. A ball landing in a 4x bucket wins $8.00.
Auto Play
- Press Auto Play, choose how many balls to drop (5 to 1,000, or ∞) and a speed: slow, medium or fast drop one ball every second, half second or quarter second. The bet, risk and rows are the ones set when it starts.
- Press Stop Auto at any time; balls already falling still land. Auto play also stops if your balance is lower than your bet.
Settings
- The lightning button at the top plays the game twice as fast.
- Round History shows your last 50 balls. Select the details icon to see a ball in full.
- Provably Fair shows the seeds every ball's path comes from, so you can check that no path was changed after you bet.
- Disable Animations shows results instantly.
- Space To Bet lets you press Space to drop a ball.
Return To Player
The theoretical return to player (RTP) is 97.81% to 98.09%, depending on the risk and rows. Wins are rounded to the nearest cent.
The maximum win multiplier is 1,000x, at High risk with 16 rows.
Closing the game ends your session.
Malfunction voids all pays and plays.
Provably Fair
Every ball's path comes from seeds that are fixed before you bet. The server shows you a hash of its seed up front and reveals the seed itself when you rotate, so you can check that no path was changed after you played.
Active Seeds
Rotating reveals the server seed above, then uses the next one with your client seed. Closing the game deletes its seeds, so reveal them before you leave.
Revealed Seeds
None yet.
How To Check A Round
- The SHA-256 hash of the revealed server seed must match the hash shown before you bet.
- Work out HMAC-SHA256, keyed with the server seed, of client seed:nonce:0. The nonce is the ball's number with those seeds, starting at 0.
- Read the result's bytes in order, one per row of pins: a byte of 128 or more sends the ball right, below 128 sends it left. A board of 12 rows uses the first 12 bytes.
- The number of rights is the bucket, counting from 0 at the far left. The path doesn't depend on the risk, which only sets what each bucket pays.
Each round's details show its seeds and nonce, and the game checks every round for you once its seed is revealed.