What is variance in casino games?
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Variance in casino games describes how spread out the results are over time. Low variance means frequent smaller wins. High variance means larger wins that hit less often, with longer gaps in between.
Low versus high variance
A low variance slot keeps your balance relatively stable, paying out modest amounts regularly throughout your session. A high variance slot can go many spins without paying anything, then deliver a large payout that makes up for the dry spell. Neither approach is inherently better since it depends entirely on your preferences and bankroll.
Variance versus RTP
These are two separate things. Two slots can have identical 96% RTP but very different variance. One might pay back steadily in small increments while the other swings between extended losing runs and occasional big hits. RTP tells you the theoretical long-term return. Variance tells you how that return is distributed across a session.
Choosing the right variance for your style
If you have a smaller bankroll and want your session to last, lower variance games are more forgiving since your money stretches further across more spins. If you’re chasing a big win and can handle swings in your balance, higher variance games offer that potential. Most slot providers list variance as low, medium, or high in the game info section.
Ben Barber got into the gambling industry through the poker rooms of London in the early 2000s. After building up a solid grounding in casino, sports betting and poker, he made the move to Malta where he spent close to a decade writing for some of the biggest affiliate networks in the region. A few years ago he relocated to Bali, which shifted his focus toward website strategy and affiliate marketing. The casino side never really left, though. He still writes reviews, how-to guides and in-depth pieces on everything from slots and live dealer tables to crypto casinos and sweepstakes sites. His approach is fact-first: help players understand how online gambling actually works before they deposit a cent.