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Bottomless Tanks (Fuel, Air & Power)
"Patrol the whole Atlantic and never phone home for a top-up."
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How do I install Bottomless Tanks (Fuel, Air & Power)?
Download the free ProjectMods desktop app, then install Bottomless Tanks (Fuel, Air & Power) for UBOAT in one click.
</>What does Bottomless Tanks (Fuel, Air & Power) do?
Long patrols in UBOAT are a constant juggle of dwindling diesel, draining batteries, thinning air and a shrinking water supply. Bottomless Tanks lets you switch off any of those worries individually: never run out of fuel on the surface, stay submerged on silent electric power for as long as you want, breathe easy on a marathon dive, and keep the crew watered. There is also a one-press button to instantly refill everything at once.
</>What is Bottomless Tanks (Fuel, Air & Power)?
Long patrols in UBOAT are a constant juggle of dwindling diesel, draining batteries, thinning air and shrinking water. Bottomless Tanks lets you switch off any of those worries on their own: never run dry on the surface, stay submerged on silent power as long as you like, breathe easy on a long dive, and keep the crew watered. One press refills the lot. A free-tier mod from ProjectMods.
</>Common questions about Bottomless Tanks (Fuel, Air & Power)
What does Bottomless Tanks do in UBOAT?
Bottomless Tanks (Fuel, Air & Power) removes the resource juggling from a UBOAT patrol. A long voyage normally means constantly watching four supplies drain at once, diesel fuel on the surface, battery charge underwater, breathable and compressed air on a dive, and the crew's fresh water, and running any of them dry can end a patrol early. Bottomless Tanks lets you switch off each of those worries individually, so you can keep exactly the ones you want and leave the rest realistic. There is also a Top Up Everything Now button that instantly refills all four in a single press. It is a free-tier mod on ProjectMods, the community-first PC mod manager.
Can I keep some supplies limited and only make others infinite?
Yes, and that flexibility is the point of Bottomless Tanks in UBOAT. Each supply has its own toggle, Infinite Fuel, Infinite Battery, Infinite Air & Oxygen, and Infinite Fresh Water, so you can mix and match exactly the challenge you want. Maybe you never want to cut a patrol short for diesel but still want air to matter on deep dives, so you switch on Infinite Fuel and leave the others alone. Or you keep everything realistic except battery, so silent running underwater never strands you. Because the four toggles are independent, Bottomless Tanks works as a light convenience or a full safety net depending on which switches you flip. The Top Up Everything Now action ignores the toggles and simply refills all four immediately.
What exactly does Infinite Air & Oxygen cover on a dive?
Infinite Air & Oxygen in Bottomless Tanks keeps both kinds of air your UBOAT crew depends on topped up during a dive. Submerged, a real U-boat slowly uses up the breathable air inside the boat while the crew works, and it also draws down its compressed air stores. Let either run too low and the crew starts to suffer. With this toggle on, both stay full, so you can stay under the surface for as long as you like, hiding from an escort, waiting out daylight, or making a long submerged transit, without the air ever becoming the reason you have to surface. Leave it off if you want the ticking-clock tension of a limited air supply on deep, drawn-out dives.
What does the Top Up Everything Now button do?
Top Up Everything Now is the instant-refill action in Bottomless Tanks for UBOAT. Where the four toggles hold a supply permanently full, this button is a one-shot: press it and your fuel, battery, air and fresh water all jump straight back to full in a single moment, then normal draining resumes. It is ideal when you would rather keep the realistic grind of managing supplies most of the time but need a quick rescue right now, say you misjudged the range home and diesel is nearly gone, or a long dive left the air dangerously thin. You can press it as often as you like. Think of the toggles as never worry about this and the button as save me just this once.
Why use Bottomless Tanks instead of resupplying normally?
Resupplying in UBOAT means breaking off the hunt to sail back to a friendly port or a milk-cow supply boat, which can cost a lot of real-time waiting. Bottomless Tanks lets you skip that whenever you want, so you can stay on station and keep patrolling the whole Atlantic without phoning home for a top-up. It is perfect for players who love the tactical hunting side of UBOAT but find the logistics tedious, or who want to attempt an absurdly long solo voyage that fuel and air would normally make impossible. Because every supply has its own toggle, you can also keep the parts of resupply you enjoy and remove only the ones you find fiddly.
What options does Bottomless Tanks (Fuel, Air & Power) include?
Infinite Fresh Water
Your fresh water supply never drops, keeping the crew going indefinitely.
Infinite Battery
Your electric batteries stay fully charged for endless silent running underwater.
Infinite Fuel
Your diesel tanks never run dry, so you can patrol the whole Atlantic without a resupply.
Top Up Everything Now
Instantly refill fuel, battery, air and water in one press.
Infinite Air & Oxygen
Breathable air and compressed air stay topped up, so you can stay submerged as long as you like.
Bottomless Tanks (Fuel, Air & Power) is a ProjectMods mod for UBOAT that keeps your fuel, battery, breathable air and fresh water permanently topped up, with individual toggles and a one-press refill for everything.
System Requirements
What features does Bottomless Tanks (Fuel, Air & Power) include?
- Switch off fuel worries so you can patrol the whole Atlantic without a resupply run
- Hold the batteries fully charged for silent electric running that never has to surface
- Breathe easy on marathon dives — air and oxygen stay topped up however long you stay under
- Toggle each supply on its own, or hit one button to refill fuel, battery, air and water at once
Best For
- Long-patrol captains sick of turning for home just because the diesel gauge is creeping down
- Players who love hiding underwater and want to sit silent for as long as the situation needs
- Anyone on a far-flung patrol who doesn't want a dead battery ending the mission early
- Captains who'd rather manage torpedoes and tactics than babysit four resource meters
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