I wasn't expecting much from this, and yet I came out positively impressed,
it can be defined as a more refined Kingdom Two Crowns-type of tower defense. Instead of using coins, the player uses faith, crabs can specialize in 5 roles, it's level based, instead of having a singular map, progressing once gathered enough food. I suspect that this game was made by a marine biologist, no other way to explain the detailed in-game encyclopedia.