核弹

In real life, the Second World War saw the first development, deployment and (currently only) active use of nuclear bombs, so they are available as a gameplay option. They are extremely powerful weapons, but are both time- and resource-consuming to manufacture. Still, whoever gains the ability to use them, will be able to obliterate their enemies' warfighting abilities and shatter their opposition from very far away. This is the Wonder Weapon that opens the path to victory, and mass destruction. Once it is researched, both warfare and the world in general will never truly be the same again.

Preparation

Deploying nuclear bombs requires first researching the relevant Engineering科技, completion of the special projects, and specific aircraft to deliver the bombs.

科技

The 原子能研究 technology serves as the prerequisite for the nuclear special projects, and gives a +4%^[1] research speed bonus.

The 核反应堆 special project unlocks the state level building titled "Nuclear Reactor" which can be found in the 建造 screen. Built nuclear reactors provide the state with enriched uranium for use in nuclear weapons, but have no effect without the requisite technology to make nuclear bombs.

The 核裂变炸弹项目 special project allows the country to produce and stockpile nuclear bombs, with one free bomb produced on project completion to conduct the initial test with. Each reactor will provide 1 bomb per 7 years (2,555 days)^[2] divided by various values. Once researched, nuclear bombs are produced by building one of three types of 核反应堆s; those being the Nuclear reactor, Heavy water nuclear reactor and the Civilian nuclear reactor.

The heavy-water reactor produces 1 nuclear bomb per 1278 days (3,5 years)^[3] and 1 thermonuclear bomb per 2555 days (7 years)^[2] while the other two produce 1 nuclear bomb per 852 days (2,34 years)^[4] and 1 thermonuclear bomb per 1278 days (3,5 years)^[3]. The bomb production progress can be seen in the tooltip of the nuclear weapons stockpile counter on the topbar.

With the 诸神黄昏 DLC, subsequent projects enable the more powerful 热核弹, the 商用核反应堆 which gives state-wide industry bonuses, 核引擎 for 舰船, and 核弹头 which unlocks the Medium Range Ballistic Missile (MRBM) and the Intercontinental Ballistic Missile (ICBM) for launching nuclear strikes with 导弹. Thermonuclear bombs are produced in parallel to ordinary nuclear bombs.

It is possible to speed up research by employing a 理论家 with either the Nuclear Scientist or Nuclear Enthusiast trait, and by finishing certain focuses.

How to drop a nuclear bomb

With 补丁 1.15 accompanying the release of 诸神黄昏, use of nuclear bombs has been integrated into the raids interface, accessible from the bottom-right of the screen. There are two types of nuclear strikes; bomber strikes and missile strikes, both of which require a payload and delivery units. For bomber strikes, a strategic bomber wing is required, while for missile strikes, an MRBM or ICBM is required. The bombers are launched from Air Bases while the missiles are launched from Rocket Sites or from a 核潜艇 deployed from a Naval base. All must be within range of the target to be carried out, which is dependent on the operational range of the bombers, the missiles and the submarine carrying them. And that range can become quite immense; a nuclear submarine carrying ICBMs can reach and strike practically anywhere; the submarine can travel halfway across the world from the Naval base it is stationed at, and its ICBMs can travel the same distance further from that. Once a nation has researched and developed all three delivery methods (bombers, terrestrial missiles and submarine missiles), they will have access to the full Nuclear trifecta.

效果

If a Nuclear bomb is detonated, it will have the following effects:

• 该省份内的单位会承受其当前兵力与组织度的 10%^[5]到 90%^[6]之间一个随机百分比的伤害。
  • If a Thermonuclear bomb was used, this will apply to units in all provinces within the state, regardless of nationality. Because of this, players will want to generally avoid using Thermonuclear bombs in frontline states to avoid severe friendly fire.
• 目标省份内的所有province buildings都会被降到 0 HP
  • If a Thermonuclear bomb was used, this will apply to all province buildings in the targeted state
• 所有state and shared buildings都会被降低到低于其当前未受损等级的随机 HP 值
  • If a Thermonuclear bomb was used, then all state buildings will be reduced to 0 HP
• Targeting a province with an Air Base destroys all aircraft stationed there
• The controller of the target province loses up to 20%^[7] war support. If the largest victory point in the state is smaller than 3^[8] or the undamaged infrastructure is lower than level 10, the effect is proportionately lower respectively
• The first use, as well as uses on specific (capital) cities, will generate unique news messages, however those are purely informational
• After the 2nd nuclear bomb has been dropped on a Japanese 核心 state, Japan will gain access to a special decision to surrender if, prior to the 2nd nuclear bomb being dropped, Japan's navy comprises less than 40 ships and Japan is not in control of Okinawa or Iwo Jima

State-wide modifiers

When a regular Nuclear bomb is detonated, it will inflict the following penalty on the targeted 州 for one year (365 days):

核辐射

• Divisions Speed -30%
• -40% 资源获取效率
• -25% 师防御
• Factory Repair Speed -40%
• Free Repair -40%
• 最大构筑工事-50%
• Local Construction Speed -40%
• Infrastructure Repair Speed -40%
• Railway Repair Speed -40%

If a Thermonuclear bomb is detonated, it will inflict the following much more severe penalty on the targeted state for two years (730 days):

Intense Nuclear Fallout

• Divisions Speed -65%
• -75% 资源获取效率
• -50% 师防御
• Factory Repair Speed -75%
• Free Repair -75%
• 最大构筑工事-90%
• Local Construction Speed -75%
• Infrastructure Repair Speed -75%
• Railway Repair Speed -75%

参考资料