It is not common to find online casino games of one category including concepts of a different games category in its bonus features. But there are interesting and innovative instances of this. This article looks at a video slot that plays roulette in its bonus feature and an online roulette variant that has a slot machine.

Riviera Riches is a video slot from Microgaming that can be played at online casinos like All Slots, Royal Vegas and Spin Palace. The theme and setting is a luxury land casino. One of the symbols is a roulette wheel. If it lands anywhere on reels 1 and 5 in the same spin then the Roulette Bonus feature is triggered. You will be awarded two spins on the roulette wheel displayed on the screen. You will be awarded two free spins on the roulette wheel at the total bet of the trigging slots spin. For each spin you select a number from 1 to 36. Different roulette bets that cover this number will automatically come into play. If you select the number '8', then these bets will be on top 12 numbers, top 18 numbers, even numbers, black numbers and second column. If the number called is covered by any of the bets you will receive the normal roulette payouts for those bets. If you do not win anything on the roulette wheel then you will be awarded a compensatory payout of 4x the total bet.

The converse game is Age of the Gods Roulette from Playtech. It can be played at online casinos like Omni Casino and Mansion Casino. The roulette game is based on the American wheel. But instead of the 00 there is the Bonus Bet. You win the bonus game when you place this bet and the roulette ball comes to rest on this position. Instead of the usual 35 to 1 payout you play a special slot game in which you may win more or less. You will be awarded three free spins on the slot machine. The bet on the roulette spin will be considered for the slots payouts. The symbols are Greek heroes from the Playtech Age of the Gods slots series. You need to land three of the same heroes on the payline and can win from 5x to 100x the bet amount. Age of the Gods Roulette is available on the RNG platform and the live casino platform. In the live casino the bonus slot game is played on a giant screen in the studio.