Underwater Idle RPG is a gacha idle RPG starring over 100 real sea creatures ranked N to UR, from mackerel, pufferfish, parrotfish and ocean sunfish to penguins, seals, sea lions and crocodiles, all the way up to the whale shark, orca and blue whale. Each has an element, a family, a normal attack and its own special skill.
Fight through 13 adventure chapters, each ending with a legendary sea boss from around the world, including the Kraken, Megalodon, Nilamangkon, Anon the World Fish from Thai legend, Cthulhu and Poseidon. Build teams that win the element matchup and earn family bonuses for a big edge.
How do you play Underwater Idle RPG?
Pick a team of 5 and it fights automatically through adventure stages, with a legendary boss every 10 stages. Spend gold on levels and gear enhancement, and gems on summoning rarer fish.
How many fish are there and what are the ranks?
Over 100 sea creatures across 5 ranks (N, R, SR, SSR, UR): pufferfish, parrotfish, ocean sunfish, dolphins, seals, sea lions, penguins, freshwater and saltwater crocodiles, all the way up to the blue whale. Each has an element, a family and its own skill.
Who are the bosses?
Thirteen chapter bosses including the Giant Octopus, Mermaid Queen, Phantom Titanic, Megalodon, Nilamangkon, Kraken, Moby Dick, Tiamat, Anon the World Fish, Cthulhu, Charybdis and Poseidon.
Do I earn rewards while offline?
Yes. Idle rewards build up for up to 12 hours. Claim them in the Adventure tab when you return.
How do PvP and rankings work?
Your team is saved to the server so other players can battle it, and you can battle theirs 10 times a day. There are leaderboards for team power, stage, tower and PvP rating.
Do I need to download or pay?
No. It is free in your browser on mobile and desktop, and every gem is earned by playing.