Tactical Naval Extraction MMO

Fathoms Deep

Command a WWII warship in a massive-scale 3D ocean. Venture into dangerous waters for loot, survive PvPvE combat, and extract to port — because nothing is secured until you make it home. 300+ players. Permadeath. Every decision matters.

Windows · free beta · in active development

What is Fathoms Deep?

A high-stakes naval MMO where you are a WWII captain commanding ship and crew through dangerous waters.

Extraction-Based Combat

Sail into contested waters for valuable modules, turrets, crew, and resources — then fight or sneak your way back to a friendly port to keep them.

Tactical Depth & Permadeath

Positioning, timing, and resource management over twitch reflexes. Losses are real and permanent, so every engagement is earned.

Authentic WWII Naval Warfare

Historically grounded ships, guns, torpedoes, and theaters spanning the era of steel — modeled with simulation accuracy.

Massive MMO Scale

Persistent 3D ocean theaters supporting 300+ simultaneous captains, with shifting front lines and player-driven politics.

Join the Beta

01

Download the launcher

Grab the latest Beta launcher (.zip) for Windows. Unzip it anywhere and run the launcher.

02

Sign in

Create an account or sign in inside the launcher. The launcher keeps the game up to date automatically.

03

Set sail

Launch the game and join your friends on the water. Feedback during beta is hugely appreciated.

Heads-up: Windows Defender (or your browser) may flag the launcher as an unknown app — this is a known false positive for new, unsigned indie builds, not a real threat. Choose “More info → Run anyway” to continue.
Download Launcher (Beta)

Community & Feedback

Hang out with other captains and help shape the beta — report bugs or send feedback right from here, no Discord account required.

Join us on Discord

Widget blank? The server widget just needs enabling in Discord settings.

Report a Bug / Send Feedback