The Best Submarine Games for Linux

Barotrauma is a 2D co-op submarine simulator – in space, with survival horror and RPG elements. Steer your submarine, complete missions, fight monsters, fix leaks, operate machinery, man the guns and craft items, and stay alert: danger in Barotrauma doesn’t announce itself!

Chiki-Chiki is a multiplayer racing game staged in the colorful reefs of Batabada. This frenzic gameplay based on physics will make you want to challenge all of your friends & family through a smashing versus experience. Make sure you samba hard.

DIVE. DISCOVER. DIE. Crew a submarine with friends in We Need To Go Deeper - a 2-4-player cooperative submarine roguelike set in a Verne-inspired undersea universe.

Dive into the chillest watercraft simulator. Play, relax, or explore. It's your sea now.

Embark on a relaxing journey in an underwater realm. Glide through captivating environments, embracing the tranquility of exploration and survival found in these Harmonic Depths.

Swirl W@tch is a tense stealth-action roguelite that takes place on an over-exploited gas giant. Infiltrate industrial installations, evade or eliminate guard ships, commit corporate sabotage and grow the movement to unlock new gear. Can your actions free this otherworldly world?

From kickstarter: "The Aquatic Adventure of the Last Human is a metroid-vania styled action/adventure game where you play as the navigator of Argo 9, a spaceship/submarine hybrid, thrust back to Earth in a time after humans have gone extinct. Whereupon one will have to explore to uncover the reasons for humanity's downfall meanwhile encountering monstrous sea creatures. The focus of this game lies in exploration, story and boss battles. It is up to the player to determine if the ruins of our species is a travesty or an inevitable conclusion."