A modern submarine warfare game · playtest coming soon

THERMOCLINE

Passive sonar, target motion analysis, wire-guided torpedoes, and people who very much want to find you. Your career, from Annapolis to your first command, while the world goes to the brink.

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Before you dive

This is an early build and it changes often. The version stamp is in the top-left of the game; quote it when you report something.
Progress and campaigns are saved in your browser only. An update may reset them.
Keyboard: A/D heading, W/S speed, Q/E depth, Z periscope depth, Tab contacts, F fire, X X ping, 5 auto time, H for the full list.
Tell Pete what felt wrong, what you could not figure out, and what you want more of.