Play Dolphin Reef Slot for Free Online - No Download. The creatures that will be around you as you play are friendly and cooperative. You will not only swim with them, you will also have great experiences, accompanied by wins. Just see the treasure chest symbol, with it you already think of big wins to grab. The graphics. If you love the ocean animal and wildlife themes, this slot is specifically for you. Treasure Reef is taking a dive into the sea to discover the colorful sea wildlife and ultimately the treasures of the ocean deep down under. GameArt is the first to develop the 'pick your feature' free spin game together with the wilds that multiply as. Dive into a world of colourful sea life and sunken riches in Treasure Reef, a 5 reel, 20 payline slot from the team at GameART that boasts multiplier wilds and a “pick your feature” free spins game. One of the more dated games in the GameART catalogue, Treasure Reef doesn't boast the same beautifully rendered graphics.