Engineering technology
Engineering technology unlocks radar, nuclear weapons, jet and rocket engines, and improves research speed, encryption, decryption, and rocket artillery attack.
Engineering technology is separate from industrial technology, meaning the player must hire an engineering design company such as the USA's General Electric (+15%) in order to get research bonuses for engineering technology research. A nation may also be offered political decisions, for example "Give refuge to German scientists (+5%)" or "Give refuge to Italian scientists (+5%)", that give a bonus to engineering technology research for a (PP) cost.
Engineering research tree

Electronics[edit | edit source]
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This tree unlocks radar, radio, and improves research speed, encryption, and decryption. Electronics is also named electronic engineering.
Technology | Year | Base time | Effects | Equipment modules |
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1936 | 100 days | ![]() |
RADAR technology[edit | edit source]
Technology | Year | Base time | Prerequisites | Effects | Equipment modules | ||||
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1936 | 175 days | Electronic mechanical engineering | |||||||
1936 | 175 days | Radio |
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1938 | 125 days | Radio detection |
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A central station high up in the ship's mast determines the range to the target and transmits that information to the gun mounts.
Surface detection: +5 | |||||
1939 | 125 days | Decimetric radar |
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An improved radar set working in the 30cm wavelength range can accurately measure the range and bearing of even a small ship at ranges of over 25 kilometers.
Sub detection: +2 | |||||
1940 | 125 days | Improved decimetric radar |
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Centrimetric gunnery radar
Equipped with cavity magnetrons, this radar set allows not only the detection of very small targets but even detecting the splashes of shells. This allows for true blind-fire against targets, even at night or in bad weather.
Light attack: +5.0%
Naval AA attack: +5.0%
Sub detection: +6 Advanced radio
With a more powerful transmitter and better reception, this radio allows communications over dozens of kilometers and in the face of enemy jamming.
Breakthrough: +45.0% | |||||
1941 | 125 days | Centimetric radar |
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1942 | 125 days | Improved centimetric radar |
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Integrated fire control radar
Working in the centimeter wavelength range, this radar set is fully integrated into the ships gunnery control and allows highly accurate gunfire control in all weather conditions.
Light attack: +10.0%
Naval AA attack: +10.0%
Sub detection: +14 |
Computing technology[edit | edit source]
Technology | Year | Base time | Prerequisites | Effects |
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1936 | 250 days | Electronic mechanical engineering | ||
1938 | 250 days | Mechanical computing | ||
1940 | 250 days | Computing machine | ||
1942 | 250 days | Improved computing machine |
Ships[edit | edit source]
Technology | Year | Base time | Prerequisites | Equipment modules | ||
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1936 | 100 days | Mechanical computing | Director fire
A central director station fires all guns simultaneously at the command of the gunnery officer.
Heavy attack: +10.0%
Reliability: −5.0% | |||
1939 | 100 days | Basic fire control system | Mechanical rangekeeper
A mechanical computer in the ship continuously updates range and bearing to target from information fed to it by rangefinders and other sensors.
Heavy attack: +15.0%
Reliability: −7.5% | |||
1941 | 100 days | Improved fire control system | Ballistic computer
A more complex mechanical computer considers a large variety of factors when calculating the ballistic solutions to engage the target.
Heavy attack: +20.0%
Reliability: −10.0% |
Encryption methods[edit | edit source]
These technologies are only available without ‘La Résistance’ DLC. Computing machine, improved computing machine and advanced computing machine also count as encryption methods.
Technology | Year | Base time | Prerequisites | Effects |
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1938 | 100 days | Computing machine | Encryption: +1 | |
1940 | 100 days | Improved computing machine | Encryption: +1 | |
1942 | 100 days | Advanced computing machine | Encryption: +1 |
Decryption methods[edit | edit source]
These technologies are only available without ‘La Résistance’ DLC. Computing machine, improved computing machine and advanced computing machine also count as decryption methods.
Technology | Year | Base time | Prerequisites | Effects |
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1938 | 150 days | Computing machine | Decryption: +1 | |
1940 | 150 days | Improved computing machine | Decryption: +1 | |
1942 | 150 days | Advanced computing machine | Decryption: +1 |
Nuclear technology[edit | edit source]
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Technology | Year | Base time | Prerequisites | Effects |
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1940 | 500 days | – | ![]() | |
1943 | 500 days | Atomic research | Unlocks ![]() | |
1945 | 500 days | Nuclear reactor | Enables nuclear bombs |
Rocketry technology[edit | edit source]
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This is a community maintained wiki. If you spot a mistake then you are welcome to fix it. |
Note: Bug forum:1521765 regarding guided missile graphics erroneously showing resource costs and production costs. Guided missiles are produced at no cost through rocket sites at the rate of 1 missile per day per site. Please disregard all guided missile costs shown in the table below.
Technology | Year | Base time | Prerequisites | Effects | Equipment and modules | ||
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1943 | 150 days | – | Unlocks ![]() |
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1944 | 200 days | Experimental rockets | ![]() ![]() ![]() ![]()
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Rocket Interceptor I
Short range experimental interceptor powered by an unreliable chemical rocket engine.
Range: 150 km
Air attack: 47
Air superiority: 1.0
Naval targetting: 10
Reliability: 30% | |||
1944 | 200 days | Rocket engines | The development of Jet Engines is an essential prerequisite for the development of jet powered aircraft. This must be researched before you can research advanced aircraft | Gas turbine
An turbine developed from jet engines. High fuel consumption, but the highest speed of any engine at a given Engine Size.
Max speed: +25%
Fuel usage: +4 | |||
1945 | 150 days | Rocket engines | ![]() ![]() ![]() ![]()
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Rocket Interceptor II
Short range interceptor powered by a slightly more reliable chemical rocket engine.
Range: 300 km
Air attack: 56
Air superiority: 1.0
Naval targetting: 10
Reliability: 50% | |||
1946 | 150 days | Improved rocket engines | ![]() ![]() ![]() ![]()
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Rocket Interceptor III
We have finally worked out most of the problems with the rocket engines and the Rocket Interceptor is now a solid close range defender of facilities.
Range: 500 km
Air attack: 60
Air superiority: 1.0
Naval targetting: 10
Reliability: 80% |
Land | Infantry · Support companies · Armor · Artillery · Land doctrine |
Naval | Naval · Naval doctrine |
Air | Air · Air doctrine |
Industry | Engineering · Industry |
Politics | Ideology • Faction • National focus • Ideas • Government • Puppet • Diplomacy • World tension • Civil war • Occupation • Intelligence agency |
Production | Trade • Production • Construction • Equipment • Fuel |
Research and technology | Research • Infantry technology • Support Companies technology • Armor technology • Artillery technology • Land doctrine • Naval technology • Naval doctrine • Air technology • Air doctrine • Engineering technology • Industry technology |
Military and warfare | Warfare • Land units • Land warfare • Division designer • Tank design • Army planner • Command group • Commander • Battle plan • Combat tactics • Ship • Naval warfare • Aircraft • Air warfare • Experience • Officer corps • Attrition and accidents • Logistics • Manpower • Nuclear bomb |
Map | Map • Province • Terrain • Weather • State |
Events and Decisions | Events • Decisions |