Prime Casino is the leading online casino site for slot machine games. . Prime Casino Bonus Review - Free Spins on Book of Dead · Power Spins Casino Review El Salvador Best Online Casinos: The Ultimate Guide for Salvadoran Players. A list of the latest no deposit bonus codes updated daily from the popular casinos with regular offers for new and existing casino members. prime casino login. Get FREE spins to play & win! The casino features a selection of over games including video-slots, classic and live-dealer casino games from some of the best-known gaming providers such. Show me Bonuses.