RTP estimates returns over many plays: 96% RTP = 4% house edge, not a promise...
https://sticky-wiki.win/index.php/Why_Do_I_Lose_Fast_on_a_High_RTP_Slot%3F
RTP estimates returns over many plays: 96% RTP = 4% house edge, not a promise for one session. Volatility shapes how wins and losses arrive—steadily or in larger swings. Short runs can differ sharply from the average, and you can lose your stake.