With a beneficial RTP. We particularly like Gold Creek Superpays, Gold Saloon Superpot Scratch and 1, Rainbows Superpot. Try King's Alchemist Scratchcard online for free in demo mode with no download or no registration required. Try Rainbow Trinkets slot online for free in demo mode with no download or no registration required. Jackpot Mobile casino offers. Return to player. 18+. Demo play for fun, no download or registration required. Try out our free-to-play demo of Rainbows Superpot online slot with no download and no registration required. Rainbows Superpot Scratch is a table game that has taken the whole world. In Rainbows Superpot, you will play on a 5x4. Rainbows Superpot Scratch is an Irish-themed scratch-card slot game from developer Matrix Studios, which comes with an RTP of % and. Return to player. Here, you will play on a 5x3 grid and can enjoy bonus features such as the Scratch Rainbows Superpot. Thanks to high volatility and bonuses, it is easy to play. %. Game Type. Land 3 Scatters anywhere in view to enter the Free Spins with up to 3 Feature Abilities, or achieve 5 wins in a row to access Matrix Spins. %. Game Type. . Play Rainbows Superpot Scratch completely for free, without spending any money.