The idea of the game is a player being dealt cards according to the 'perfect' strategy  with players pre-selecting whether they want to auto-split or double down. Its RTP rate is 99.5%, although it's worth noting perfect blackjack is an overall concept.
The Top 3 wager is based on a three card hand using the dealer's one (1) up card and the player's two (2) initial up cards to form a three card poker hand. Winning hands of Three of a Kind Suited, Straight Flush and Three of a Kind are paid according to the poasted pay table.