How to Use a Kaboom Slots Promo Code. The voucher code for this promotion is: FIRSTBOOM. Kaboom Casino has a fantastic collection of bonus codes and promotions available for all its customers. The payment option AstroPay is eligible for your deposit. Join today and start playing with Kazaboom Casino: Get % up to €/$ Welcome Bonus on first deposit! More on [HOST] Casino sign up bonuses and promo codes. The voucher code for this promotion is: FIRSTBOOM. Get no deposit bonus for registration. More than €85 worth of no deposit bonuses. Low wagering requirement. The Bally Online Casino promo code is BONUS50 for $50 on signup with no deposit needed, plus refunded losses after first week, up to $. The payment option AstroPay is eligible for your deposit. code. Games allowed: Selected Games Only. In order to get this Bonus a bonus code is required. Browse all bonuses offered by Kazaboom Casino, including their no deposit bonus offers and first deposit welcome bonuses. Wagering requirements: 30x. After your first payment is completed, this deposit. Receive a generous % bonus on top of your third deposit! Just enter the code 3DBOOM.