RTP, Variance and Volatility
Why return-to-player percentage does not describe how smooth or swingy a gambling game will feel.
RTP describes theoretical long-run return. Variance and volatility describe how widely short-term results can move around that expectation.
RTP is an average, not a session promise
A game advertised at 96% RTP is not expected to return exactly $96 from every $100 session. The number applies over a very large number of plays under the specified game configuration.
Volatility changes the path
Two games can have the same RTP while one produces frequent small wins and the other produces long losing stretches punctuated by larger wins.
Why bankroll experience differs
Higher volatility increases the chance of substantial short-term swings. That affects how long a fixed bankroll may last even when long-run RTP is identical.
What to compare
When available, compare RTP, game rules/paytable, betting speed, hit frequency or volatility information, and maximum exposure—not RTP alone.
RTP is an expectation, not a balance forecast
A 96% RTP does not mean a player will receive $96 back from a particular $100 session. It describes a long-run mathematical expectation under the specified game configuration.
Equal RTP can hide different risk
Two games can share the same theoretical return while distributing it very differently across frequent small outcomes, rare large outcomes, bonuses or jackpots. RTP alone therefore cannot describe bankroll variability.
Keep configuration attached
When a title exists in multiple RTP versions, record the exact offered configuration where disclosed. A detached title-level RTP number can be inaccurate for the version actually being played.