In the gaming world, you will often see terms like House Edge and RTP. The House Edge is the mathematical advantage the platform maintains; essentially, the game is designed to keep a small portion of all bets placed over a huge number of rounds to cover operations.
RTP (Return to Player) is the same concept but viewed from the player's perspective. It represents the theoretical percentage of total wagers that the game will pay back to players over a massive sample size (millions of spins). It is crucial to remember that these are long-term averages. They cannot predict what will happen in a single session, a single night, or even a hundred rounds. You might win big early or go through a dry spell; neither scenario contradicts the RTP.
Additionally, you will encounter Volatility. This does not describe how much you can win, but rather "how swingy" the results are. High volatility means wins may be less frequent but potentially larger, while low volatility means more frequent but smaller payouts. To find the actual numbers for any specific game, always open the game first and check the "Info" or "Paytable" panel located within the game interface.