When considering RTP, any casino that offers default settings pushes a better product for players than a casino choosing lower. Variable slot developers such as Play'n GO and Pragmatic Play offer a choice of RTP for their games. Single version developers such as Relax Gaming and Yggdrasil Gaming offer one version only. As of July 2021, Casino Winner were hosting default settings. Be sure to check each time you play, as this can change in an instant.