A mission gone wrong, an ancient monster awaken!

A private military company is hired to escort a laboratory team in a submarine to recover a valuable specimen near an abandoned deep sea facility. As the laboratory team and part of the military personnel explore the target site, things go wrong almost immediately. An ancient monster attacks the submarine and sinks it, ruining the submarine's communication links. A mere cadet, John "Flash Pan" Pinback is the team's last hope at survival as the only escape route is a mini-sub that's in bad need of replacement parts, which Flash Pan can find and fix. Meanwhile, Captain Valeria Buenrostro must search the submarine and target site to save her squad members while dealing with constant sabotage from an unknown source.

Twin-stick action-driven survival horror in a 1-bit, deep sea metroidvania!

Play the individual stories of Flash Pan and Captain Buenrostro to discover the truth behind the ill-fated mission and unravel the not so abandoned deep sea facility, all the while surviving the wrath of an ancient monster and a submarine filled with mutated versions of electric eels, jellyfish, and sharks.

Make the most of available resources and dive into an array of weapons with unique ways to use them!

Light is scarce with the only sources being the few working lamps, resident bioluminescent marine life, and the deep sea suit. Use twin stick controls to survive the horrors that are drifting in the darkness with multiple weapons, some of which can be used in unique ways like dashing with the harpoon gun, high jumping with the shotgun's recoil, and busting open stuck doors with a flamethrower-like welding kit.

Play with a friend and sink together into a world 20,000 pixels below normalcy ...

Couch co-op experience with multiple modes as Flash Pan and Captain Buenrostro. Take on waves of enemies coming at you at full strength or complete missions together from clearing enemies from specific areas to scavenger hunts.

Unlock achievements!

Use specific weapons, complete side quests, and more! Switch on the speed run timer and go for the speed run-based achievements.