Sins of a Solar Empire
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The Diplomacy Tree is the diplomacy research tree for the TEC.

Skilled Diplomats was originally from the Civilian Tree.

Diplomacy[]

Name Civics Labs Prerequisites Effect (Per level) Cost
(Credits/Metal/Crystal)
Cultural Relations 1 Gives plus 1 to relationship bonus. 400/0/25
Neruda Prototype 1 Unlocks Neruda Envoy Cruiser 400/0/25
Cultural Affinity 2 Cultural Relations Give an additional plus 1 to relationship bonus. 600/50/100
Worthy Cause 2 Neruda Prototype Unlocks Worthy Cause 600/50/100
Bounty Hunting 2 Grants the the ability to offer missions to other factions. 600/50/100
Arbitrate Tariff 3 Neruda Prototype Unlocks Arbitrate Tariff 800/100/175
Universal Negotiation 3 Bounty Hunting Allows you to offer and demand gifts of Credits, Metal, and Crystal from opposing factions. 800/100/175
Cultural Mastery 3 Cultural Affinity Give an additional plus 1 to relationship bonus. 800/100/175
Political Kickbacks 3 Universal Negotiation Increases the maximum relationship gain from resources by 1, and the amount gained from Credits by 100%. 800/100/175
900/125/200
Settlers 4 Arbitrate Tariff Unlocks Settlers 1000/150/250
Backroom Deals 4 Political Kickbacks Allows you to offer missions to pirate factions. 1000/150/250
Trade Pact 4 Improves trade profit for factions that sign the pact with each other. 1000/150/250
Metal Pact 4 Trade Pact Improves metal production for factions that sign the pact with each other. 1000/150/250
Skilled Diplomats 4 Increases relationship standing rewarded by 15% and decreases relationship lose by 10% for failure. 1000/150/250
1100/175/275
Missile Pact 5 Trade Pact Increases missile damage for factions that sign the pact with each other. 1200/200/325
Labor Negotiations 6 Increases ship and structure construction rates by 15%. 1400/250/400
Siege Pact 6 Missile Pact Increases bombardment damage for factions that sign the pact with each other. 1400/250/400
Public Forgiveness 7 Removes the racial relations penalty. 1600/300/475
Armor Pact 7 Siege Pact Increases armor for factions that sign the pact with each other. 1600/300/475
Supply Pact 8 Armor Pact Increases supply capacity for factions that sign the pact with each other. 1800/350/550
TEC Structures
Logistics: Metal Extractor Crystal Extractor Frigate Factory Capital Ship FactoryMilitary LabCivics Lab Trade PortBroadcast CenterOrbital Refinery
Tactical: Gauss Defense PlatformHangar DefenseRepair PlatformPhase Jump InhibitorShield GeneratorNovalith CannonProximity Mine FieldTitan Foundry
TEC Ships
Corvettes: Shriken Corvette (Loyalist) • Stilat Corvette (Rebel)
Frigates: Arcova Scout FrigateCobalt Light FrigateJavelis LRM FrigateKrosov Siege FrigateGarda Flak FrigateProtev Colony Frigate
Cruisers: Percheron Light CarrierHoshiko Robotics CruiserCielo Command CruiserKodiak Heavy CruiserRaloz Heavy ConstructorOgrov Torpedo CruiserNeruda Envoy Cruiser
Capital Ships: Kol BattleshipSova CarrierAkkan BattlecruiserDunov BattlecruiserMarza DreadnoughtCorsev Battlecruiser
Titans: Ankylon Titan (Loyalist) • Ragnarov Titan (Rebel)
Starbase: Argonev Star Base
TEC Tech Tree
Military TreeDefense TreeCivilian TreeDiplomacy Tree
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