How RNG Really Works in Slots
We often hear that slots are "Random," but what does that mean in a digital environment? How does a Pseudo-Random Number Generator (PRNG) simulate true chance, and can the "seed" value be manipulated by the house to tighten payouts during a winning streak? How do independent audits by bodies like eCOGRA ensure that the math remains unbiased over millions of spins?
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In digital slots, “random” usually means outcomes are generated by a Pseudo-Random Number Generator (PRNG)—an algorithm that produces long, unpredictable sequences of numbers rather than true physical randomness. The “seed” sets the starting point, but in regulated casinos it’s fixed and not adjusted dynamically to react to player behavior or winning streaks. Independent auditors like eCOGRA test the software by running millions of simulated spins to verify that the Return to Player (RTP) matches what’s advertised and that results are statistically fair. Even when browsing offers like an 888 casino promo code no deposit bonus those audits are what keep the math honest.