RTP (Return To Player) term means return to player. The term is official and is used in land-based and online casinos for all types of gambling.
Usually RTP (Return To Player) term is expressed as a percentage and calculated using a simple formula: RTP = win size / bet size *100 %.
Important! All slot machines in real casinos and online slots in virtual casinos are required to indicate the exact return rate. This is one of the main requirements for a developer when licensing. Upon validation the regulator must check that the RTP value declared by the developer is consistent, and issue a license to the game only if this parameter is specified correctly.
It is not enough to know the percentage of return, it is also important to understand how it works in practice. Thus, RTP = 96.34 % means that the player will return 96.34 % of all bets made on the slot machine, but measured in the long run. It is wrong to assume that 100 coins for 10 or 100 spins will definitely win 96.34 coins. It takes ate least 1000 spins to get close to indicated RTP and the regulators with game developers verify the RTP on several million spins.