How And Why To Choose A Safe Virtual Casino In Slovakia. Get up to $ Bonuses are uninteresting and have a very large wager, so I played without a bonus. Active members can also collect bits through real-money play as Duelbits. Duelbits is an online casino that offers games like slots Get +% Bonus and 50 Free Spins on your First Deposit Get +% Bonus on your First Deposit. I was not particularly pleased with the win, since I lost everything. Duelbits is the most rewarding crypto casino and sportsbook on the market! Almost as rewarding as when I break Logan's face in half in October. Casino bonus codes Slovakia. .