Spearhead Studios, Spike Games, SpinLogic Gaming Jacks or Better, Joker Poker, Keno, Let Them Ride Pari Match - Cash, Pay N Play, Paybay, paybox, PayByPhone. Yggdrasil Gaming review: Read for the best online casinos featuring this software, and catch up on studio's bonuses, game library, and wagering options. . WorldMatch & Parimatch consolidate their partnership | iGaming Business Jacks Or Better HD.