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Lifeline D37

Lifeline D37: The War’s Beating Heart

There are submarines that win wars with guns, and there are submarines that win wars with what they carry. Lifeline D37 was one of the latter.

A submarine like no other, Lifeline D37 was built by SurgeHammerIndustries in the early stages of the Coalition-Rebel War. Designed not for battle, but for endurance, it was a colossal cargo sub, a slow-moving titan that could haul entire supply depots in the depths. Its mission was simple but vital: keep the Coalition forces alive.

A Titan of the Deep
At first glance, Lifeline D37 looks more like a half-melted metal bottle than a submarine. Its odd, bulky hull was the cost of having a small warehouse in its innerds. The bridge, set unusually far up front, gave it a strange silhouette, making it appear both formidable and awkward.

Despite its strange design, it had one key advantage: over-preparedness. SurgeHammerIndustries built it with auxiliary batteries for every major system, ensuring that even in the event of a full power failure, no system ever truly died. The super capacitators could restart from blackout conditions, the fabrication array could run on backup circuits, and even the life support could keep a skeleton crew breathing for days.

The Lifeline of War
It was this resilience that earned the D37 its name. When the war against the Rebels stretched into its darkest moments, Lifeline D37 became the Coalition’s salvation. It ferried medical supplies to the front, carried fuel and ammunition in enemy-infested waters, and even served as a last-ditch escape vessel for stranded soldiers.

The Rebels tried to sink them countless times. Depth charges, torpedoes and even railgun barrages—they threw everything at it. But Lifeline D37 always came back. Even when its hull was stripped from its frame, even when its engine sputtered and coughed, its failsafe power systems ensured it never stayed dead for long.

A Relic of the Old War
After the war the usage of D37 greatly declined, most of what remained was to be retired, a rusting war heroes laid to rest. But a Coalition officer decided to sell it to the civilians and as the years went by the submarines to this day refuse to die. They still sail to this day, a living piece of history. Some are used to carry cargo for the black market, others were repurposed as a luxury moveable mansions.