Guide Pronty and its Javelin partner Bront as it defends the once great city of Royla. Explore the deep sea, fight mutant sea creatures, and discover the secrets behind this new Atlantis in this beautiful action-packed adventure.
We are not affiliated with IsThereAnyDeal.


















Control the inexperienced Pronty and Bront the Javelin, a weaponized robotic swordfish that can fend off the sea creatures corrupted by toxic waste. Use Bront to repel enemies, remove obstacles, and shield Pronty from harm.
Encounter all sorts of creatures formed from a ghastly fusion of sea critters and marine debris. While some might look easy to defeat, there’s always a bigger fish…Fight giant bosses to bring back hope to the once-thriving Royla and reveal the truth behind the monsters and pollution.
Unlock new abilities and upgrades in Pronty’s Memory Board to put together strategies that work for every situation and play style.
Explore the fallen underwater city, Royla, in an underwater Metroidvania experience.
Swim through a magnificently terrifying atmosphere, designed with a colorful, clean line art style to depict the mysterious underwater world. Experience sound and music by Behind the Screen composer Paul Su.
Replay again and again, with post-launch updates including the boss rush mode in Neptune’s Hall.
Steam data © 2025 Valve Corporation. Steam and the Steam logo are trademarks and/or registered trademarks of Valve Corporation in the U.S. and/or other countries. Independent of Valve. Pricing and availability subject to change.


















Control the inexperienced Pronty and Bront the Javelin, a weaponized robotic swordfish that can fend off the sea creatures corrupted by toxic waste. Use Bront to repel enemies, remove obstacles, and shield Pronty from harm.
Encounter all sorts of creatures formed from a ghastly fusion of sea critters and marine debris. While some might look easy to defeat, there’s always a bigger fish…Fight giant bosses to bring back hope to the once-thriving Royla and reveal the truth behind the monsters and pollution.
Unlock new abilities and upgrades in Pronty’s Memory Board to put together strategies that work for every situation and play style.
Explore the fallen underwater city, Royla, in an underwater Metroidvania experience.
Swim through a magnificently terrifying atmosphere, designed with a colorful, clean line art style to depict the mysterious underwater world. Experience sound and music by Behind the Screen composer Paul Su.
Replay again and again, with post-launch updates including the boss rush mode in Neptune’s Hall.
Guide Pronty and its Javelin partner Bront as it defends the once great city of Royla. Explore the deep sea, fight mutant sea creatures, and discover the secrets behind this new Atlantis in this beautiful action-packed adventure.
We are not affiliated with IsThereAnyDeal.
Steam data © 2025 Valve Corporation. Steam and the Steam logo are trademarks and/or registered trademarks of Valve Corporation in the U.S. and/or other countries. Independent of Valve. Pricing and availability subject to change.