Marriage

Out of the 50+ characters living on the island, 28 characters' are romanceable. Though Ben, Charles, Millie, and Suki were not initially romance candidates, they were added to the original 16-character roster after Coral Islands Kickstarter crowdfunding campaign reached its US$750,000 stretch goal. In the 1.0 update it is now possible to romance 3 new characters, Miranjani, Semeru and Denali, all merfolk.

It is also possible to marry another player in multiplayer mode. Multiplayer is not confirmed to be cross-platform but is under consideration for later in development.