Duelbits Happy Hour Event: Get 30% of your deposit if you option in on the promotion before you deposit. You just need to wager your deposit 100% on the participating games in able to received the deposit bonus. Up to 150$ bonus is allowed to received on this event and you can participate for a minimum 50$ deposit.

Reference:https://duelbits.com/promotions/exclusive-happy-hour

This promotion is a very nice offer because of x1 wagering requirements only compared to the typical x30 to x40 wagering requirements of other casino. The last time I saw this kind of offer is last Christmas promotion challenge.