Plinko is the simplest-looking game in a casino: drop a ball, watch it bounce off pegs, collect whatever multiplier sits in the slot it lands in. Edge slots promise up to 1,000x. The centre pays less than your stake. And the maths of where the ball lands is old, well understood and not in your favour at the edges. Here’s what casino Plinko is, what the rows and risk buttons actually change, the published RTP for the versions we could source, and how it fits with bonuses at casinos for players outside Ontario and Alberta.
- RTP by studio: BGaming Plinko 99%, Spribe Plinko 97%. Check the info screen at your casino.
- Rows set the odds: on 16 rows an edge slot comes up about 1 in 32,768 drops.
- Risk sets the spread: high risk means bigger edges and a centre that pays less than your stake.
- Bonus play: Plinko isn't named in the contribution tables we read. Play it with cash.
What casino Plinko is
Casino Plinko is a pyramid of pegs over a row of slots, each slot carrying a multiplier of your bet. You choose a stake, a number of rows and a risk level, then drop a ball. At every peg it goes left or right, and the slot it lands in sets your payout: 0.5x returns half your stake, 2x doubles it, 1,000x is the headline.
The idea comes from an American TV game show, as Spribe’s own game page notes. Online, it sits in the casual or mini-game section of the lobby, next to crash games and dice, and it’s one of the staples of crypto casinos. Two studios publish the numbers we could verify:
| Version | Published RTP | Rows | Risk settings | Top multiplier |
|---|---|---|---|---|
| BGaming Plinko (2019) | 99% | 8 to 16 | Low, normal, high | 1,000x |
| Spribe Plinko (2021) | 97% | 12, 14 or 16 | Green, yellow, red balls | 555x (16 rows, red) |
Sources: BGaming’s Plinko page; Spribe’s game page; SlotCatalog for Spribe’s rows, ranges and release date. Read October 2026.
Both offer manual drops and an auto mode. Other casinos run in-house versions with their own settings; we couldn’t verify their figures from an official source, so they’re left out here. Whatever version you open, the RTP in its info screen is the number that applies.
Rows: how the odds are built
Every peg is a coin flip: left or right, 50/50. A ball crossing 16 rows makes 16 of those flips, and the slot it lands in depends on how many went each way. That’s a binomial distribution, the same maths as a Galton board in a science museum, and it piles balls up in the middle.
To reach an edge slot, the ball has to go the same way at every single peg. On 16 rows that’s 1 chance in 65,536 for each edge, so either edge comes up about 1 in 32,768 drops. The centre slot alone catches almost 1 in 5.
🧮 Chance of each slot on a 16-row board
| Centre slot | 19.64% |
|---|---|
| 1 from centre | 17.46% |
| 2 from centre | 12.22% |
| 3 from centre | 6.67% |
| 4 from centre | 2.78% |
| 5 from centre | 0.85% |
| 6 from centre | 0.18% |
| 7 from centre | 0.024% |
| Edge slot | 0.0015% |
The middle five slots catch about 79% of all drops; the middle seven, about 92%. Fewer rows shrink the board and make the edges far more reachable, with smaller multipliers to match:
| Rows | Chance of either edge slot |
|---|---|
| 8 | 1 in 128 |
| 12 | 1 in 2,048 |
| 14 | 1 in 8,192 |
| 16 | 1 in 32,768 |
Computed from the binomial distribution, 2 / 2^rows.
More rows doesn’t change the RTP. It stretches the distribution: higher top multipliers that you reach far less often.
Risk levels: why high risk mostly loses
The risk button changes which multipliers sit in which slots. On Spribe’s 16-row board, SlotCatalog lists the green ball paying 0.4x to 35x, yellow 0.2x to 118x, and red 0x to 555x. The pattern holds across row counts: higher multipliers at the edges, and centre slots below 1x.
| Spribe rows | Green (low) | Yellow (medium) | Red (high) |
|---|---|---|---|
| 12 | 0.5x-11x | 0.3x-25x | 0x-141x |
| 14 | 0.5x-18x | 0.2x-55x | 0x-353x |
| 16 | 0.4x-35x | 0.2x-118x | 0x-555x |
Source: SlotCatalog, Spribe Plinko, read October 2026.
Put that next to the chart above. On high risk, the slots where most balls land pay less than your stake, and the lowest slots on red pay nothing at all. The top multipliers sit in slots you’ll reach about once in tens of thousands of drops. So a high-risk session is mostly a run of losing drops, punctuated by the occasional mid-board hit, with a small chance of a big edge payout. Low risk gives a smoother ride: smaller losses per drop, smaller wins.
The published RTP is the same whichever colour you choose. Risk changes how bumpy the road is, not the destination.
🧮 What a session costs
Worked example, illustrative numbers: you drop 1,000 balls at C$1 each, C$1,000 in total bets.
| Version | RTP | Average cost of C$1,000 in drops |
|---|---|---|
| BGaming Plinko | 99% | C$10 |
| Spribe Plinko | 97% | C$30 |
That’s the long-run average. On high risk, the spread around it is enormous: most sessions finish well below the average return, and a rare edge hit pushes one far above. With auto mode, 1,000 drops goes by quickly, so the turnover piles up faster than it feels. For context on how RTP compares across the casino floor, see our slot RTP and volatility guide and the highest payout casinos explainer.
Choosing your settings
There’s no setting that beats the published RTP, but there is a setting that fits your budget. A few practical rules:
- Check the RTP first. If the same casino offers more than one Plinko, the version with the higher published RTP costs less per drop, whatever settings you pick.
- Low risk for long sessions. Smaller swings mean your balance lasts more drops, which is the point if you’re playing for the ride.
- High risk only with a stake you can lose quickly. Long runs of sub-1x drops are normal on red or high, not a sign the game is broken.
- Fewer rows for more frequent edge hits, at smaller multipliers. More rows for bigger, much rarer ones.
- Cap auto mode. Set a number of drops and a loss limit before you press start, so the session ends when you planned it to.
- Ignore patterns in the history. Each drop is independent; a string of centre landings doesn’t make an edge more likely next.
Provably fair, explained
Plinko grew up in crypto casinos, and most versions are provably fair: you can check that a result wasn’t changed after you bet.
BGaming describes its system like this. Before you bet, the game calculates the outcome, adds a random secret, and shows you a SHA-256 hash of the two. You can set your own client seed. After the round, the game reveals the outcome, the secret and your seed. Hash the outcome and secret yourself, and if it matches the hash you saw before the bet, the result was fixed in advance; your seed is then applied to give the final result. BGaming’s provably fair page walks through an example.
Spribe works on the same principle: the operator’s server seed is hashed and shown before the round, combined with player seeds when the round starts, and everything is revealed in the round history for checking.
What provably fair proves is narrow: the round wasn’t tampered with. It doesn’t change the RTP or the odds above, and it doesn’t make one risk level better than another. Our crypto casino guide covers the rest of the crypto side, from networks to price risk.
Plinko and casino bonuses
Plinko and bonus money don’t mix well. None of the contribution tables we read at Canadian-facing casinos names Plinko or other mini-games. Some list categories outside slots as excluded: V.Vegas excludes table games, live casino, keno and scratch cards from wagering, and 20Bet’s terms say table, live dealer and jackpot games don’t count.
The workable route: clear any bonus on slots at full weighting, as our wagering requirements guide explains, then play Plinko with withdrawable cash. The wagering calculator shows how much clearing a bonus takes. Crypto players can compare sites on our crypto casinos page, and if you like the cash-out-or-lose rhythm, our crash games guide covers Aviator and its maths.
🍁 For players in Canada
The casinos we list serve players aged 19 or over outside Ontario and Alberta, which run their own regulated markets. Plinko rounds take seconds, and auto mode removes the pause between them. Set a stake, a drop count and a deposit limit before you start, and see our responsible gambling page for every provincial helpline.
FAQ
What is the RTP of online Plinko?
It depends on the version. BGaming publishes 99% for its Plinko and Spribe publishes 97% for its own. Other casinos run their own versions, so check the game's info screen for the figure at the casino you're using.
What are the odds of hitting the top multiplier in Plinko?
On a 16-row board, the ball has to bounce the same way at every peg to reach an edge slot. The chance of landing in either edge slot is 2 in 65,536, or 1 in 32,768 drops. On 12 rows it's 1 in 2,048, and on 8 rows 1 in 128.
Is high-risk Plinko better than low-risk?
Not on average. The risk setting reshuffles the multipliers, it doesn't change the published RTP. High risk puts bigger numbers on the edges and pays less than your stake, sometimes nothing, in the centre, where most balls land. Expect more losing drops and rarer big ones.
Can I play Plinko with a casino bonus?
Check before you do. None of the contribution tables we read at Canadian-facing casinos lists Plinko at all, and Jackpot City's terms say playing games that don't count before wagering is done can void winnings. Clear bonuses on slots and play Plinko with cash.
What does provably fair mean in Plinko?
The game commits to a result before you drop the ball by showing you a hash of it, and lets you add your own client seed. After the round, it reveals the inputs so you can recompute the hash and confirm the result wasn't changed after your bet. BGaming's Plinko is provably fair.
