The house edge is the share of every bet the casino keeps on average. It's the flip side of RTP: a game with 99% RTP has a 1% house edge. Over many bets your expected loss is the total you wagered times the house edge.
House edge and RTP
House edge = 100% − RTP.RTP (return to player) is the long-run share of wagers paid back; the rest is the casino's margin. Crypto originals like Plinko and Dice often have small edges compared to classic slots, but never zero.
Expected loss
Expected loss = total wagered × house edge. Note: total *wagered*, not your deposit. Betting $100 back and forth 50 times is $5,000 wagered; at a 1% edge that's an expected loss of $50.
Why systems can't beat it
Each bet has the same negative expected value. Adding bets together, in any order or size, adds negative values. Systems change the distribution of outcomes - frequency and size of wins and losses - not the sum.
The house edge is a property of a payout model, not a fee collected in an identical amount from every session. It describes the expected net loss per unit wagered when outcomes follow the stated probabilities and payouts. A short session may finish ahead or lose much more than that average. Both can occur without changing the underlying edge.
Turnover is not the same as the opening balance
A bankroll is the amount available to fund bets. Turnover is the sum of the stakes actually placed, including credits returned and wagered again. You can therefore wager more than the opening bankroll during a session. Expected loss should be calculated from turnover, rather than applying the edge once to the initial deposit.
If a session can stop before all planned bets are placed, actual turnover becomes variable. The Plinko simulator includes a fixed-stake stopping rule, while the calculator helps inspect the selected table's theoretical return. Keep planned exposure and completed exposure distinct when reading the results.
Expected loss depends on turnover
Illustrative RTP
Completed turnover
Expected net loss
97%
500 credits
15 credits
97%
5,000 credits
150 credits
Hypothetical fixed 97% RTP, calculated as turnover × 3%. This is an expectation, not a predicted loss for one session.
A higher hit rate need not mean a lower edge
A hit may mean any payout, a return above the stake, or a selected target multiplier. Those definitions produce different probabilities. Even a game returning something on every drop can have a house edge if frequent payouts are smaller than the stake. The weighted sum of all returns determines RTP, not the count of visually positive outcomes.
Compare the full multiplier table and the slot probabilities. A lower edge reduces theoretical loss per unit wagered under the model, but it does not guarantee lower losses in one limited sample. Volatility and the size of the stake still matter.
Fairness and profitability are separate checks
A provably fair replay can match perfectly in a game with a negative expected net return. That is consistent: the replay tests the result-generation process, whereas the house edge describes payouts relative to outcome probabilities. A hash match cannot turn a below-fair payout into a profitable wager.
Use Verify for a recorded bet and Compare for captured payout configurations. Neither tool accounts for every external fee, promotion or account condition. Those require their own rules and evidence rather than an assumption based on the game's headline RTP.
FAQ
What does a 1% house edge mean?
On average the casino keeps $1 of every $100 wagered. Individual sessions vary widely around that.
Can the house edge be negative?
Not on the base game. Bonuses or rakeback can offset part of it, but they come with their own terms.
