Plinko casino games: rows, risk levels and the real odds
Plinko drops a ball through rows of pins into multiplier slots. More rows and higher risk make the edges pay more and hit less. The studio's RTP sets the average.
Short answer
In casino plinko you choose a stake, a number of rows and a risk level, then drop a ball through pins into slots with multipliers. The centre slots pay less than the bet; the edge slots pay the most and are hit very rarely. The RTP depends on the studio: BGaming lists its Plinko at 99% with 8 to 16 lines and a top multiplier of x1,000, and Spribe lists its Plinko at 97%. If every pin is a 50/50 bounce, the ball reaches one particular edge slot of a 16-row board once in 65,536 drops. Our notes:.
Plinko drops are fast and can run on auto. Set a limit before you start: responsible gambling.
Free plinko demos
Play money only, for adults (18+ or 19+, depending on your province).
How plinko works
- Set your stake.
- Choose the number of rows (BGaming: 8 to 16 lines). More rows means more slots at the bottom.
- Choose the risk level. BGaming calls them low, normal and high; Spribe uses three coloured buttons.
- Drop the ball. It bounces off a pin on each row and lands in one slot. You win stake × that slot’s multiplier.
Risk changes the multiplier table. At higher risk the edge slots pay more and the centre slots pay less, often well under 1x. The RTP stays the same for each setting of a given game, so risk changes how the return is spread while the average stays put.
RTP by provider
| Game | Studio | RTP stated by studio | Rows | Risk levels | Average cost of C$100 in bets |
|---|---|---|---|---|---|
| Plinko | BGaming | 99% | 8 to 16 | Low, normal, high | C$100 × 0.01 = C$1 |
| Plinko | Spribe | 97% | Adjustable pins | Three colour buttons | C$100 × 0.03 = C$3 |
Many studios and casinos make their own plinko, each with its own RTP. Check the RTP in the game’s info screen; a game that doesn’t show one is a reason to play something else.
The odds of each slot
If each pin sends the ball left or right with equal chance, the landing slot follows a binomial distribution. With n rows there are n + 1 slots, and the chance of slot k (counting from 0 at the left edge) is C(n, k) ÷ 2^n, where C(n, k) is the number of paths that end there.
| Rows | Slots | Chance of one edge slot | Chance of either edge | Chance of the centre slot |
|---|---|---|---|---|
| 8 | 9 | 1 ÷ 256 = 0.39% | 2 ÷ 256 = 0.78% | C(8, 4) ÷ 256 = 70 ÷ 256 = 27.3% |
| 12 | 13 | 1 ÷ 4,096 = 0.024% | 2 ÷ 4,096 = 0.049% | C(12, 6) ÷ 4,096 = 924 ÷ 4,096 = 22.6% |
| 16 | 17 | 1 ÷ 65,536 = 0.0015% | 2 ÷ 65,536 = 0.0031% | C(16, 8) ÷ 65,536 = 12,870 ÷ 65,536 = 19.6% |
On a 16-row board, either edge comes up about once in 32,768 drops. At 10 drops a minute, that is about once in 55 hours of play on average. The top multiplier is real but almost never seen in a session; most of the return comes from the slots near the centre.
The 50/50 model is how plinko is presented on screen; the studios’ documentation sets the actual probabilities.
How to read a multiplier table
Every plinko game shows its multipliers for the rows and risk you pick. You can check the RTP from them: multiply each slot’s chance by its multiplier and add up. Here is an illustrative 8-row table (not any studio’s real one), with path counts 1, 8, 28, 56, 70, 56, 28, 8, 1 out of 256:
| Slot | Edge | Next | Next | Next | Centre |
|---|---|---|---|---|---|
| Paths (each side) | 1 | 8 | 28 | 56 | 70 (one slot) |
| Multiplier | 13x | 3x | 1.3x | 0.7x | 0.4x |
| Contribution | 2 × 1 × 13 = 26 | 2 × 8 × 3 = 48 | 2 × 28 × 1.3 = 72.8 | 2 × 56 × 0.7 = 78.4 | 70 × 0.4 = 28 |
Total: 26 + 48 + 72.8 + 78.4 + 28 = 253.2, and 253.2 ÷ 256 = 98.9% RTP. In this table, 70 + 112 = 182 of the 256 paths, or 71%, land on a slot that pays less than the stake. That is normal for plinko: most drops lose a little, and the edges pay for it.
Choosing rows and risk
- Few rows, low risk: results bunch near your stake. A small balance lasts longer.
- Many rows, high risk: most drops return less than the stake, and rare edge hits pay big. A small balance runs out faster.
- Same RTP either way: on BGaming’s 99% game, C$100 of drops costs C$1 on average at any setting.
Auto-drop is the setting to be careful with. At 10 drops a minute and C$1 a drop on a 97% game, the average cost is 10 × 60 × C$1 × 0.03 = C$18 an hour.
Our play notes
Casinos with plinko
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Similar quick-round games: crash games and Aviator.
Questions
What is the RTP of plinko?
It depends on the studio. BGaming lists 99% for its Plinko; Spribe lists 97% for its version. Check the game’s info screen at your casino.
Which plinko setting is best?
None changes the average return. Low risk and few rows give steadier results; high risk and many rows give rare big wins and more losing drops.
How often does the ball hit the edge?
With 16 rows and 50/50 bounces, one particular edge slot comes up once in 65,536 drops on average; either edge once in 32,768.
Does plinko count towards bonus wagering?
Often at a reduced rate or not at all. Check the bonus terms first: casino bonuses.
Sources
- BGaming: Plinko (checked November 3, 2026)
- Spribe: Plinko (checked November 3, 2026)