Why Play Demo Slots at All? Some might ask why would you choose to play a slot in free play mode at all? After all, ask me bet สมัคร unlike Blackjack or Poker, most online slot machines do not require any choices to be made; you cannot affect the RTP of an online slot by making a poor decision like you can whilst playing blackjack. Dig a little deeper, however, and this is not always strictly true – many online slot machines do present the player with choices, and whilst they may not directly influence the RTP of the machine, the different options may well have an enormous effect on the volatility or variance of the game. In truth, there are many advantages to trying out a demo slot before playing the same game for real money – below, we present the five best reasons to play demo slots.