Same type (covert action) effects are not additive e.g.

Actions can still be executed even if a diplomat can't further build a spy network (due to discovery).

All actions are instantaneous and successful upon execution most actions have a duration of 5 years or an instant effect.

And finally, spy network will decay at the normal rate, as if you didn't have a spy there. For example, being discovered at spy network 70 will reduce the spy network to 50. In addition, the size of the spy network will be reduced to 25, 50 or 75 (the closest of these that is still less). After the 12 months are over the diplomat will resume spy network construction. While there are modifiers reducing (or increasing) the discovery chance, it cannot be reduced below approximately 0.06% per month.Ī nation which has been discovered building a spy network will have its spy network prevented from growing for 12 months, but the diplomat will not be expelled. The discovery chance is calculated as the sum of the yearly discovery chance, which has a base of 25% (or a 2.083% monthly discovery chance), and the difference between the defending nation's foreign spy detection and the attacker's spy network construction. Spy network construction has a discovery chance upon reaching size 25 meaning, an aggressor can fabricate a single claim or generate a trade conflict CB without risking the chance of being discovered if the network size is smaller than 25. This drastically hinders (if not outright precludes) the target's efforts to execute covert actions. As long as the diplomat continues the action, the diplomat's nation gets +33% Foreign spy detection against the foreign nation in addition to applying further −50% spy network construction and slowing the foreign nation's network construction.

Italian (minor) idea 3: Italian AristocracyĬounter-espionage is performed by sending a diplomat to a foreign nation with the intention of hunting down the foreign nation's spies in the diplomat's home nation.

Venetian idea 4: Found the State Inquisition.

Three Leagues idea 2: The League of God's House.

Cascadian idea 4: Settling the Boundaries.This benefit is unlocked at Diplomatic technology 9.įoreign spy detection įoreign spy detection determines the chances of discovering actively built spy networks and how quickly enemy spy networks grow in the nation.įoreign spy detection has a base efficiency of 100% modified by the following:.The reduction is affected by the size of the spy network.The applied reduction is −5% for each tech level the target is ahead in a certain tech field compared to the nation building the spy network (in case of multiple same-field reductions only the highest is applied).−30% Aggressive expansion impact (in that nation)Īvailable only with the The Cossacks DLC enabled.The benefits scale with the networks' size and at a 100 spy network will apply:Īvailable only with the Mare Nostrum DLC enabled. Having a spy network in a foreign nation grants several passive benefits for the country creating the spy network when certain DLCs are enabled. Italian (minor) idea 6: Italian Diplomacy.Frankfurter idea 4: Frankfurter Postzeitung.Trebizond idea 7: Greek Scholars Abroad.Tokugawa idea 2: Strengthen the Sekisho Network.Espionage-Offensive: The Black Chamber Act.Diplomatic-Offensive: The Underhanded Diplomacy Act.Infrastructure-Espionage: Spy Network Act.Ruler has ‘Intricate Webweaver’ personality Spy network construction has a base construction speed of 1.50 per month modified by distance, the foreign spy detection of the target and the following: That one network can then be used to execute covert actions in the overlord's and any of its subjects nations. The aggressor has to build the spy network in the overlord's nation instead. It is important to note that it's not possible to construct a spy network in a subject nation. As long as the aggressor has a big enough spy network it is possible, if so desired, to perform a succession of covert actions on the target all of which will be instantaneous and successful upon execution, along with most of the actions also having the effects lasting for a duration of 5 years. A spy network which isn't being actively maintained by a diplomat will slowly decay over time at a rate of 1.00 per month. As the spy networks' size grows, more costly covert actions can be executed in the target nation. Spy network construction Ĭovert actions are executed by spending spy network size, which is gained by sending a diplomat to construct a spy network in a foreign nation. Please help with verifying or updating this section.

Eu4 espionage tutorial