DREADMOOR Boat and Trawler Upgrades Guide: Engines, Propellers, and Modules

Dry Dock, Blueprints, and Engine Repairs

Boat modules are crafted at the Ship upgrades table in the Dry Dock. An upgraded engine will make your boat faster, while a new propeller will improve its maneuverability. As you explore the world, complete quests, and trade, you will gain Torn Pages. Torn page points are used as progression points. To open the Tech Tree, press [T]. The skill tree has several categories, each with its own development path. Every skill in the tree has a cost. If you have enough Torn Pages, select the skill and hold [F] to learn it.

Massive tentacles can damage the boat’s hull and engine. A damaged engine will severely reduce the boat’s speed. To repair the engine, step away from the helm by pressing [F]. Engine repairs require the necessary resources. If you have enough resources, play the mini-game and win to complete the repair.

Engines and Forward Speed

The Standard Engine is an engine that is easy to repair and maintain, which makes it popular among anglers. It cannot boast either speed or reliability. The Standard Engine has a maximum forward speed of 600, a maximum backward speed of 200, and a repair cost of 3 Metal Plate. Crafting 1 Standard Engine costs 4 Metal Plate and 2 Gear.

Thanks to its rebuilt valve mechanism, the Upgraded Engine noticeably increases the boat’s speed and maneuverability. The Upgraded Engine has a maximum forward speed of 750, a maximum backward speed of 250, and a repair cost of 3 Metal Plate. Crafting 1 Upgraded Engine costs 10 Metal Plate, 4 Gear, 2 Machine oil, and 1 Carburetor.

The Heavy-Duty Engine uses new pistons and a massive crankshaft to increase the boat’s speed, and the engine performs well even in harsh aquatic conditions. The Heavy-Duty Engine has a maximum forward speed of 850, a maximum backward speed of 250, and a repair cost of 3 Metal Plate. A reworked cylinder head and a reinforced crankshaft give the Reinforced Engine a serious edge in both speed and handling. The Reinforced Engine has a maximum forward speed of 950, a maximum backward speed of 280, and a repair cost of 4 Metal Plate.

Machined to tighter tolerances than any stock engine, the Precision Engine delivers smooth, reliable power with noticeably sharper handling. The Precision Engine has a maximum forward speed of 1,050, a maximum backward speed of 310, and a repair cost of 4 Metal Plate. The Prototype Engine is a one-of-a-kind engine built from salvaged pre-Collapse parts. The Prototype Engine has a maximum forward speed of 1,150, a maximum backward speed of 340, and a repair cost of 5 Metal Plate.

Engine Module	Rarity	Forward Speed	Reverse Speed	Torn Pages	Repair Cost	Crafting Materials
Standard Engine	Common	600	200	0	3 Metal Plate	4 Metal Plate, 2 Gear
Upgraded Engine	Rare	750	250	2	3 Metal Plate	10 Metal Plate, 4 Gear, 2 Machine oil, 1 Carburetor
Heavy-Duty Engine	Rare	850	250	2	3 Metal Plate	14 Metal Plate, 6 Gear, 2 Thermo Coil, 3 Machine oil, 2 Carburetor
Reinforced Engine	Unique	950	280	3	4 Metal Plate	16 Metal Plate, 6 Gear, 2 Carburetor, 3 Machine oil, 3 Thermo Coil, 1 Cable
Precision Engine	Unique	1,050	310	3	4 Metal Plate	20 Metal Plate, 7 Gear, 3 Carburetor, 4 Machine oil, 4 Thermo Coil, 2 Relay tubes, 4 Cable
Prototype Engine	Legend	1,150	340	4	5 Metal Plate	24 Metal Plate, 8 Gear, 3 Carburetor, 5 Machine oil, 5 Thermo Coil, 3 Relay tubes, 1 Glowbug

Propellers, Handling, and Afterburners

The Old Propeller is a rusty, chipped propeller whose main advantage is that it simply exists. Don’t expect any maneuverability, as its angular turning speed is 0. Crafting 1 Old Propeller costs 3 Metal Plate and 1 Rubber.

The Upgraded Propeller is a rebuilt propeller where the rusty parts have been cleaned and oiled, and the impeller and rubber gaskets have been replaced. All of this has a noticeable effect on the vessel’s maneuverability, raising angular turning speed to 15. Crafting 1 Upgraded Propeller costs 4 Metal Plate, 1 Gear, 2 Rubber, and 1 Chromatic Scales.

The Balanced Propeller uses hand-balanced blades and a fresh bearing to take the wobble out of the shaft so the boat answers the helm quicker and holds its turn, providing an angular turning speed of 20. The Duralumin Propeller uses light duralumin blades that cut through the murk with far less drag so tight turns in narrow channels stop being a gamble, reaching an angular turning speed of 25. Built around a propeller shaft salvaged from a deep-water vessel, the Deep-Water Propeller is steady, precise, and hard to foul even in thick weeds, reaching an angular turning speed of 30. The Prototype Propeller has a pre-Collapse blade profile reproduced by hand so the boat turns almost on the spot and obeys the slightest touch of the wheel, reaching an angular turning speed of 35.

An Afterburner is a system that forces fuel into the engine and provides a brief burst of power, which helps you escape danger. On the Advanced Afterburner, the pneumatic system builds up pressure during normal cruising, and when the air is released, it increases power and extends the duration of the burst. The Injector Afterburner is a motorcycle carburetor turned into a boost injector that floods the engine with fuel on demand and delivers a much harder push. The Prototype Afterburner pairs twin gas cylinders and a controlled injector for a violent burst of speed that can outrun almost anything in these waters.

Propeller / Boost Module	Rarity	Turning Speed	Torn Pages	Crafting Materials
Old Propeller	Common	0	0	3 Metal Plate, 1 Rubber
Upgraded Propeller	Rare	15	2	4 Metal Plate, 1 Gear, 2 Rubber, 1 Chromatic Scales
Balanced Propeller	Rare	20	2	6 Metal Plate, 2 Gear, 3 Rubber, 2 Chromatic Scales
Duralumin Propeller	Unique	25	3	8 Metal Plate, 1 Impeller, 2 Gear, 3 Rubber, 2 Jaws
Deep-Water Propeller	Unique	30	3	10 Metal Plate, 2 Impeller, 3 Gear, 3 Rubber, 4 Jaws, 2 Bone Plate
Prototype Propeller	Legend	35	4	14 Metal Plate, 3 Impeller, 4 Gear, 4 Rubber, 1 Coral Tail, 4 Bone Plate
Afterburner	Rare	—	2	4 Metal Plate, 2 Bug slime, 6 Coral fibers, 2 Rubber
Advanced Afterburner	Rare	—	2	6 Metal Plate, 3 Alcohol, 3 Rubber, 5 Bug slime
Injector Afterburner	Unique	—	3	1 Gas Cylinder, 4 Alcohol, 4 Gunpowder, 3 Rubber
Prototype Afterburner	Legend	—	4	2 Gas Cylinder, 5 Alcohol, 6 Gunpowder, 4 Rubber, 2 Relay tubes, 3 Swamp Lily

Hull Armor, Fuel Tanks, Fish Holds, and Spotlights

Hull Protection is a makeshift-reinforced hull that increases the boat’s durability and provides additional protection for you. Crafting 1 Hull Protection module costs 3 Coral fibers, 2 Bug slime, 2 Rope, and 2 Rubber. Plated Hull Protection uses metal plates bolted over the hull and sealed with chitin, which absorbs heavy blows at the cost of some speed. The Armored Hull uses armored plating with an ebonite coating that turns the boat into a floating bulwark that shrugs off most attacks, but makes it noticeably heavier.

A standard sheet-metal Fuel Tank is spacious enough to keep you from stalling halfway between islands, but nothing more, providing a maximum fuel capacity of 360. The Riveted Fuel Tank is a heavier riveted tank with a reserve drum bolted on that holds a maximum fuel capacity of 720, enough fuel to reach the far islands and still find your way back. A Small Canister Rack is a short welded rack for a single fuel canister, where one spare canister on board can be the difference between reaching the dock and drifting till dawn. The Dual Canister Rack is an expanded rack that holds two fuel canisters.

The Small fish hold is a small container that increases the capacity of the hold. The Medium fish hold is a standard fish hold that helps separate predatory and non-predatory fish into separate compartments and keeps them fresh longer during transport. The Large fish hold is a large, heavy hold for extended fishing expeditions. A Spotlight is a light source that you carry with you into the darkest corners of the flooded world, while the Long-Range Spotlight is a rebuilt searchlight with a silvered reflector and a stronger lamp whose beam reaches far into the dark and holds steady.