Here at PartyCasino s software is entirely browser based and was created in house by Bwin. Bonus Dollars awarded are valid only on PartyCasino Slots. Below, we have listed the best live sports betting sites you can check. Negative reviews on AskGamblers: Users complain some bonuses come with huge wagering requirements; Added features are not very varied beyond the slot game. Live Betting Site, Welcome Bonus, Live Features, Rating, Secure Link, T&C's. . bwin.