Free spins; Exclusive game offers; Free chips; Exclusive deposit bonuses Developed by Novomatic, Rainbow King is a 5-reel slot game with 20 paylines that. casino-kings--online-casino. Up To £ Free. Rainbow King has even more bonus game action than Reel King. By free-playing this slot machine you'll get a really good idea of what to expect from the mini-slot for free money, not because we were trying to investigate anything, but simply because its damn good fun. Play Rainbow King Video slots by Novomatic online. This free slot These free spins last until you get different signs than red 7's on the reels. The maximum. MONOPOLY name and character, as well as each of the distinctive elements of the board and playing pieces are trademarks of Hasbro for its property trading game and game equipment. This bonus feature kicks into action when you land a Crown symbol on reel 2, 3 and 4 during the same spin. The theoretical average return to player RTP is For newbies, we as usual repeat that all games including the Rainbow King slot machine are available for free and with no download , no registration required, just pick the game you like and start play for fun. You can play it freely or for real money, the choice is up to you. Just be sure that you will be playing the authentic Rainbow King game, rather than a pale imitation. The free Rainbow King slot machine is a classic one; it comes with 5 reels and 20 pay lines. All of this makes up for a rather basic base play with only a wild symbol to supplement payouts no scatter. This sound is amazing and it's one of the video game's best features. So, right now the only option is to play here for free, until it finally gets released to win actual dollars and cents. Finally, players can enjoy the King Cash feature which reverts to the simpler style of the Cash Castle game. Theoretical payout of Rainbow King is rather low, at Players press the Spin button to roll the dice and travel around the board, collecting cash prizes and bonuses as they go. As with the majority of the Reel King series of online slots, players can choose up to twenty win lines, and while the number of coins on each line is fixed, they can adjust the inherent value to suit their tastes.