v2.42.1
Romulan Vulnerability
Romulan Vulnerability
TREECombat
UNLOCKS ATOPS 50
MAX LEVEL10

Increases Critical Hit Damage against Romulan opponents.

What it costs to research each level, how long it takes, and the effect at that level.

LEVELTIMEHARD CURRENCYCOSTEFFECT
Lv 1 198d 23h Not purchasable 9,214,000,000 Dilithium · 42,000 4★ Common Refined Crystal · 11,000 4★ Uncommon Refined Crystal · 1,300 4★ Rare Refined Crystal Romulan Vulnerability 0.01
Lv 2 230d 12h 110,925,154 23,035,000,000 Dilithium · 24,000 5★ Common Refined Crystal Romulan Vulnerability 0.02
Lv 3 244d 2h 166,335,634 34,553,000,000 Dilithium · 34,000 5★ Common Refined Crystal Romulan Vulnerability 0.03
Lv 4 259d Not purchasable 51,830,000,000 Dilithium · 36,000 5★ Common Refined Crystal · 12,000 5★ Uncommon Refined Crystal Romulan Vulnerability 0.04
Lv 5 277d 5h Not purchasable 77,745,000,000 Dilithium · 42,000 5★ Common Refined Crystal · 15,000 5★ Uncommon Refined Crystal Romulan Vulnerability 0.05
Lv 6 292d 19h Not purchasable 116,618,000,000 Dilithium · 56,000 5★ Common Refined Crystal · 18,000 5★ Uncommon Refined Crystal Romulan Vulnerability 0.06
Lv 7 317d 5h Not purchasable 174,927,000,000 Dilithium · 63,000 5★ Common Refined Crystal · 7,300 5★ Rare Refined Crystal Romulan Vulnerability 0.08
Lv 8 346d 15h Not purchasable 262,391,000,000 Dilithium · 66,000 5★ Common Refined Crystal · 8,100 5★ Rare Refined Crystal Romulan Vulnerability 0.1
Lv 9 361d 19h Not purchasable 393,587,000,000 Dilithium · 68,000 5★ Common Refined Crystal · 8,500 5★ Rare Refined Crystal Romulan Vulnerability 0.12
Lv 10 377d 5h Not purchasable 590,381,000,000 Dilithium · 78,000 5★ Common Refined Crystal · 9,000 5★ Rare Refined Crystal Romulan Vulnerability 0.15
R&D Department Lv50
Romulan Armada Defects
4★ Siege Warfare