Plinko simulator: understand the board and the odds
This free Plinko simulator lets you drop balls through a peg board using virtual credits. Choose a row count and risk level, watch each path and compare its payout with your stake. It is an AskSpinner practice model with its own payout tables, so its results do not describe every casino’s Plinko game.
Set up a Plinko practice round
Choose 8, 12 or 16 rows, then select low, medium or high risk. Check the multipliers before dropping a ball: changing either setting changes the payout table. Your stake sets how many virtual credits are used for that ball; it does not change where the ball is likely to land.
The animation follows a randomly selected path. At every row, the model makes a fresh 50/50 choice between left and right. The ball’s movement illustrates those choices rather than running a physical simulation of collisions, friction or gravity.
Why the middle slots are more likely
Many paths reach the middle of a Plinko board, while only one path reaches either extreme edge. With 8 rows there are 256 equally likely left-or-right sequences. Seventy of them finish in the centre slot, giving it a probability of 70/256, or 27.34375%.
One particular edge slot has a probability of 1/256, or 0.390625%. With 16 rows, the probability of one particular edge becomes 1/65,536, about 0.001526%. These figures apply to this equal-chance model. They are not promises that a slot will appear after a certain number of drops.
What low, medium and high risk change
Risk changes the multipliers, not the chance of moving left or right. At a fixed row count, all three risk settings share the same slot probabilities. Higher risk assigns more of the potential return to rare outer slots and less to the common central slots.
More rows create more possible landing slots and make the extreme edges rarer. Compare both the multiplier and its probability: a large number at the edge does not mean a likely return. The biggest possible payout is only one part of the distribution.
Read payouts separately from profit
A multiplier describes the total returned, including any returned stake. For example, a 20-credit ball landing at 2.50× returns 50 credits, for a net profit of 30. At 0.50× it returns 10 credits, leaving a net loss of 10.
The stake is deducted when you drop the ball, and the return is added when it settles. Returns are rounded to the nearest 0.01 credit. Use the session net figure to see the overall change, rather than treating every payout as a win.
Theoretical RTP and session results
Our custom payout tables start from a 97% target, then round each multiplier to two decimals. The displayed theoretical RTP uses your current stake and each slot’s credit return, rounded to 0.01 credit. It weights those returns by their landing probabilities, so it can differ from the original target.
RTP describes an average over the model’s possible outcomes, not a guaranteed refund or the result of a short session. Actual returns can vary widely. At very small stakes, rounding can even push the expected return above 100% in this virtual-credit model. This does not establish an advantage in a casino game.
Use the history to compare sessions
Review the completed drops to compare stakes, multipliers and returns. Keeping the same board settings makes a session easier to interpret. A run of central landings does not make an edge landing due: each new ball uses independent choices.
Reset starts a new practice session. Credits have no cash value and cannot be deposited or withdrawn. This simulator helps you explore Plinko probabilities and payouts; it cannot predict or verify the outcome of a real-money game.
This tool’s practice model, not a commercial RTP
Payouts and probabilities in this simulator belong to the practice model documented on the page, including its target return. That figure is not a published RTP for a commercial Plinko title, and a short session can land well above or below it. This page also cannot verify a provably fair operator round, because it does not use operator seeds. For the same distinction on a crash-style game, see the Aviator / Crash Simulator.
This is a free practice tool that uses virtual credits. It is not a way to make money, and it does not change the odds of any real-money game. If you gamble with real money, set a limit and use your local self-exclusion or support services if play stops being fun.