RTP, or Return to Player, is a percentage that indicates how much of the wagered money a slot game is expected to pay back to players over a long period. Players often seek out games with higher RTP percentages, as they theoretically offer better odds of winning. 'RTP Vegasslot77' suggests that users are looking for the RTP values of slot games available on the Vegasslot77 platform. Checking the RTP regularly can help players make informed decisions about which games to play.