Try Neptunian Riches slot online for free in demo mode with no download or no registration required. Game Type. The. Return to player. A dynamic slot with 5 reels, 3 rows that form 20 paylines, and an impressive graphic design that invites you to dive into the ocean. %. The discovery paper argued the data are best explained by a habitable “Hycean” world, consisting of a relatively thin H2-dominated atmosphere. There is no maximum win on the deposit bonus and the complimentary spins have a maximum allowed win of £ The bonus is cashable. Click to learn more! Neptune's Riches: Ocean of Wilds is a Just For The Win / Microgaming collaboration that plays out on 5 reels, 3 rows with 20 ways to win. Neptune is fondly known for being a rich blue and Uranus green – but a new study has revealed that the two ice giants are. With a pretty balanced math model and the. Neptune's Riches: Ocean of Wilds offers % theoretical return, High volatility and x win potential, max win. Ultimately, there are some nice touches in Neptune's Riches: Ocean of Wilds, with the slot utilising vivid symbols and providing rewarding special features. . Neptune's Riches Ocean of Wilds is a 5 reel, 20 payline slot from Just For The Win with a % RTP. In this enchanting slot game from World Match, you'll explore the hidden treasures of the deep sea with the company of mermaids who guard. The Welcome Bonus expires.