Molluscarium

Molluscarium is an aquarium collection game where you discover, care for and grow over 500 mollusc species across nine themed aquatic habitats. You can build a collection ranging from garden snails to octopuses, and customize multiple habitats to your liking.

Collect molluscs

The collection spans nine themed packs, including Garden, Tidepool, Freshwater, Coral Reef, Spiral Shells, Bivalves and Hunters. Each species has one of seven rarity tiers, from Common to Ancient, and can appear in Normal, Painted, Golden or Rainbow variants.

Raise your collection

Eggs hatch into veligers that drift through the water and grow into adults. You can watch snails crawl over mossy stones, octopuses pulse through coral and nudibranchs glide through the water. Release molluscs for instant rewards or keep them in your aquarium for steady passive income.

Customize your habitats

Decorate habitats with rocks, kelp, coral and other decorations, and choose day-night lighting cycles. You can create settings such as a freshwater pond, a tidepool or a coral reef. An automatic feeding system keeps your molluscs fed, while the aquarium continues to flourish in the background and gathers rewards for you to collect when you return.

Compete in rankings

Rankings track either the total value of your collection or the number of unique species you have discovered, letting you compare your aquarium with mollusc keepers worldwide.