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Repairs Overhaul

Immersive Repairs

Keeping the sub alive becomes a real job. Engines burn oil, oxygen generators need filters, vents need blades, hull breaches are welded from outside, turrets wear out, and a failed repair can blow up an engine in your face. Adds a deep toolset, firefighting gear, and new afflictions.

XML — no Lua required Item / maintenance Mostly bot-friendly
What it is
A repairs overhaul by _]|M|[_. Repairs take more time and crew coordination. "Not for people with low patience and a need for speedy campaigns."
Load position
Enhanced Reactors / Hazardous Reactors (if used) → Immersive Repairs → DynamicEuropa → Neurotrauma. Place its feature-revert patches above it.
Bots
Mostly bot-friendly (auto-refill oil, no failed-skill explosions). Known quirk: bots try to repair external turrets, grab a diving suit, then get stuck.
Don't repair a running engine or live reactor without an extinguisher buddy. After every fight or flood, sweep vents and check vent blades, air filters and engine oil — water damages all of them.

Core mechanics

The new maintenance systems

1

Oiled engines

Engines need oil; run dry, they degrade fast and explode when they break. Refill with an Engine Oil (or Premium Engine Oil) canister; Hungry Europans' cooking oil works briefly. Engines start smoking at ≤50% condition. Bots auto-refill oil. Premium Oil is unlocked by the "Oiled Machinery" talent.
2

Air filters (oxygen generators)

Oxygen generators need a working Air Filter. Maintain it by cleaning with ethanol (especially after a flood); replace only if it breaks. Filters have a quality stat (more quality = longer life, more reaction time). A generator won't refill O₂ tanks without a working filter. Caution: turning the generator off to clean the filter has burned subs when forgotten.
3

Vent blades (vents)

All vents need Vent Blades to function. Blades take water damage (break down over ~14 minutes submerged) — check after flooding. They can be thrown at intruders (damages blade and target). Bots can't replace them — you do.
4

Hidden loose-vent inventories

You can't tell a loose vent from a fixed one by sight. Open a vent with the Action key ("E") while holding a crowbar to reveal its hidden inventory.
5

Outside hull / turret welding

Diving suit on, go outside, use the shorter-range welder. Weld hull from outside; repair turrets/discharge coils periodically.
6

Emergency seals

Place an Automatic Welder near an unreachable leak (auto-welds ~400 HP of wall when water flows; has a manual button too). Or spray Fixfoam from a sprayer + Fixfoam Tank for an instant temporary seal — then weld over it within ~3–4 minutes before it degrades.

New items & tools

ItemEffect / roleNotes
MultitoolReplaces the repair pack; fastest handheld repairs; also a combined screwdriver + wrenchHandheld mode is fastest but leaves the object un-protected (re-degrades immediately). Degrades fast; fix with an FPGA circuit.
Welding Torch / Welding ToolShorter-range welders for hull/structureBots revert the Welding Tool to vanilla behaviour
Concentrated Welding Fuel TankLets the torch weld underwater and triples range; also Flamer fuelHighly explosive, used fast; refuel with a buy-only Concentrated Welding Fuel Canister at a Fuel Refill Station
Fuel Refill Station (placeable)Refills welding-fuel tanks & fire extinguishersCraftable
Welding MaskPrevents Welder's EyeVariants: Diving Welding Mask, Advanced Welding Mask (status/electrical readouts), Clown Welding Mask
Welder's Eye DropsTreats Welder's EyeMedical-merchant only; recommended ~55 medical skill
Automatic Welder (placeable)Auto-welds unreachable leaks (~400 HP)Craftable + sold; you spawn with some by difficulty (Easy 8 / Normal 6 / Hard 4)
Fixfoam TankLoads into a sprayer for a temporary leak sealWeld over within 3–4 min
Air FilterRequired by oxygen generatorsClean with ethanol; quality tiers; replace if broken
Vent BladeRequired by vents; throwableReplace when water-worn
Engine Oil / Premium Engine OilEngine fuel/lubricantEngine Oil vendor-sold; Premium via "Oiled Machinery" talent
Jackhammer / Plasma CutterMining / structure-tearing toolsRight-tool-for-job
Industrial FlashlightToggleable powerful flashlightHigh battery use
Halligan-Tool / Fire AxeOpen/break doors fast; blunt + laceration/bleedingFirefighter recipes
CO₂ GrenadeInstantly kills fires by depleting room oxygenFirefighter recipe; works in detonators
Firefighter Suit / Helmet / CabinetHigh fire protection + firefighting storageFirefighter recipes; cabinet auto-refills O₂/batteries
Safe Cracker / Holdable ladder / StairsUtility items praised by the communityExact behaviour not documented on the page

Talents added: Firefighter (Mechanic — carry characters at full speed; unlocks firefighting recipes) and Oiled Machinery (unlocks Premium Engine Oil). The vanilla "Hull Fixer" talent is modified.

New afflictions

AfflictionCauseCure
Welder's EyeWelding without a mask (Plasma Cutter & Welding Tool apply it). Impairs vision/navigation.Self-heals very slowly; or Welder's Eye Drops; or outpost doctors (expensive). With Hungry Europans, sleeping in a bed drastically speeds healing.
Oil / slipFailing an engine repair, or being hit by a thrown oil canister, spills oil → you slip and fallGet sprayed with a sprayer containing ethanol
Electric shockZapped by a flooded/failed junction box, battery, supercapacitor, or discharge coilVanilla electric-shock state

Compatibility & patches

Place any of the feature-revert patches above Immersive Repairs in the list.

Sources

PreviousEnhanced Reactors NextArtifacts & Ruins Enhanced