rtp sabi4dRTP, or Return to Player, is a critical metric that indicates the percentage of all wagered money a slot game will theoretically pay back to players over time. Sabi4D is committed to transparencySabi4D RTP: What Does It Mean for Players? The Sabi4D RTP (Return to Player) is a percentage sabi4d maxwin that shows how much of the total bets are paid back to players over time.