Thunderbolt Online Casino has announced that it will be adding the five-reel Dragon Orb video slot from developer RealTime Gaming to its portfolio next week.The South Africa-facing online casino additionally revealed that it will be celebrating the September 20 premiere by running a series of promotions that could see players receive up to 175 complimentary spins on its latest addition along with a maximum of ZAR20,500 ($1,576) in bonus cash.“In this stunning new game with expanding wilds that trigger re-spins, a fierce mythological dragon guards a stunning treasure,” read a statement from Thunderbolt Online Casino.“Golden idols, magic potions, lotus blossoms and Chinese artifacts spin on its five reels. The Dragon’s Orb, which is a magical crystal ball, is the wild symbol. The wild orb can appear on any of the middle three reels. It instantly expands to cover all three rows, turning one wild into three. If more wilds appear on the re-spin then it spins again once the pays have been awarded. Expanded wilds stick until the next re-spin creating even more possibilities for winning combinations.”Thunderbolt Online Casino explained that online casino aficionados can currently enter the coupon code ‘PRE-DRAGON-ORB’ up to four times in order to take advantage of a 120 percent deposit bonus worth up to ZAR3,500 ($268) while three similar offers are to be rolled out once the new game launches on Wednesday.The first will see punters that use the coupon code ‘DRAGON-ORB-50’ before September 30 gifted a 50 percent deposit bonus worth up to ZAR1,000 ($76) alongside 25 complimentary Dragon Orb spins.Those that take advantage will subsequently be entitled to enjoy a full matching deposit bonus for a maximum of ZAR2,000 ($153) as well as 50 complimentary Dragon Orb spins by entering the coupon code ‘DRAGON-ORB-100’ in advance of September 30.Online casino players that have enjoyed both of these offers can then utilize ‘DRAGON-ORB-150’ before September 30 for a 150 percent deposit bonus worth up to ZAR3,000 ($230) alongside 100 complimentary spins on Dragon Orb.Finally, Thunderbolt Online Casino stated that any slot aficionado that has taken advantage of these three final deposit bonuses in order can enter the coupon code ‘ORB-500-FREE’ to receive a voucher valued at up to ZAR500 ($38).