Crypto games was used to be 0.8% and they also have 0.4% house edge promotion for VIP members, but I'm not sure how about now.
this promotion is only for dice games(just in case someone thinks it's for every game). also, the last time I checked their VIP membership, their promotion for VIP members regarding house edge was 0.8% which is probably the lowest house edge the gamblers in their casino can get. as for the 0.4%, I don't remember reading it there the last time I checked so they probably have updated their VIP membership.