OnAir Entertainment may not be a household name, but they’re certainly getting there. The studio has pushed its way into prominence thanks to the backing of world-famous Games Global and because they offer amazing live dealer games. The team has proven adept at taking concepts other developers have tried and making them even better.
With this in mind, it comes as no surprise that Diamond Rush Roulette turned out as well as it has. OnAir Entertainment has delivered what we consider the ultimate multiplier roulette, combining the best elements of several prior games into one mouth-watering package. Keep reading and learn all about what makes this game so special.
What is Diamond Rush Roulette?
Diamond Rush Roulette is a live casino European Roulette game with multipliers and a bonus round. The core gameplay loop is the same roulette we’ve played many times before. There are 36 red and black numbers plus a single zero and your goal is to predict which one will be drawn by the wheel. You do so by utilising a variety of inside and outside bets, balancing how likely a wager is to win versus its reward.
Unlike Lightning Roulette, this game lets players qualify for its bonuses with every Inside bet instead of only single-number wagers. Up to 10 numbers will be assigned multiplier values every round, making their payouts better. One more number is assigned for the bonus round, which activates if it gets drawn.
Diamond Rush Roulette’s Bonus Features
The first of Diamond Rush Roulette’s bonuses is easy to understand. One, three, five, or ten numbers are randomly chosen to be assigned multipliers. These multipliers can go up to 500x, drastically increasing the expected payout. If you place a bet on these numbers and then the wheel draws them, you’ll get the improved cash prize.
However, what really drew us in was the bonus round. Like with the multipliers, you activate it by betting on the right number and having it drawn during the round. This starts a six-stage bonus round, with each stage hiding random multipliers and game-end symbols.
During each round, you pick one of five available options. If you draw a multiplier, it gets added to your prize total and you move on to the next level. However, drawing a game-end symbol means you lose the round.

There are no game-end icons on the first round, ensuring you get to walk away with some money in your pocket. As you advance through the levels, the number of multipliers decreases while game-end symbols increase. At the final stage, you have only one multiplier and four game-end icons.
More risk-averse players may want to quit while they’re ahead, and OnAir Entertainment is happy to let them do that. If you make it to the third stage, you can cash out with all your existing winnings rather than keep going.
The last addition to this bonus round isn’t massive, but it shows the developer wants to entertain all its players. Rather than having to wait because you didn’t qualify, you have the option to Guess for Fun. This lets you play along with everyone else, though obviously, you won’t receive any cash prizes.
Diamond Rush Roulette Payouts
We were pleasantly surprised to find out that Diamond Rush Roulette’s RTP is 97.69%. This is better than standard roulette, though admittedly not by much. The improved RTP also only counts if you’re playing inside bets.
While all inside wagers count for activating bonuses, they don’t get the same rewards. To get the biggest payouts, you must place single-number bets. Every other inside bet decreases the reward by the number of fields on the betting board it covers. That means Splits, which cover two numbers simultaneously, will get half the payout. You can see how this pans out in the paytable below.
| Bet | Covers | Reward | Bonus Round Payout | |
| Inside Bets | Straight-Up | 1 Number | 29:1 – 499:1 | 4:1 – 4999:1 |
| Split | 2 Numbers | 14:1 – 249.5:1 | 2:1 – 2499.5:1 | |
| Street | 3 Numbers | 9:1 – 166.33:1 | 1.33:1 – 1666.33:1 | |
| Corner | 4 Numbers | 6.5:1 – 124.75:1 | 1:1 – 1249.75:1 | |
| 6 Line | 6 Numbers | 4:1 – 83.16:1 | 0.66:1 – 833.16:1 | |
| Outside Bets | Dozen/Column | 12 Numbers | 2:1 | Doesn’t Qualify |
| Red/Black | 18 Numbers | 1:1 | Doesn’t Qualify | |
| Odd/Even | 18 Numbers | 1:1 | Doesn’t Qualify | |
| 1-18/19-36 | 18 Numbers | 1:1 | Doesn’t Qualify |
