Citadel Swords

One of the six families a delivered blade can grow into at +10. Its final form at +20 is Continent-Cleaving Iron Citadel.

A blade only joins this family if it came down the lane that turns it into a Thick Iron Sword at +6 (a Portable Iron Door at +8). At +10 a hidden coin flip made on delivery sends it here or to the Holy Swords, so half the blades from that lane end up in each. A sword bought from the merchant as a basic sword rolls its lane and branch at random.

Worn Sword+0 to +1Refined Sword+2 to +3Decent Iron Sword+4 to +5Thick Iron Sword+6 to +7Portable Iron Door+8 to +9Something's Off with This Greatsword+10 to +11Double-Plated Greatsword+12 to +13A Gate Torn from Its Hinges+14 to +15Fortress with a Handle+16 to +17Mountain-Crushing Citadel+18 to +19Continent-Cleaving Iron Citadel+20 and up

Form	Shown at	Value at that grade	Break chance there
Something's Off with This Greatsword	+10 to +11	18,453	46.7%
Double-Plated Greatsword	+12 to +13	41,519	50.5%
A Gate Torn from Its Hinges	+14 to +15	93,417	53.2%
Fortress with a Handle	+16 to +17	210,189	55.8%
Mountain-Crushing Citadel	+18 to +19	472,925	59.4%
Continent-Cleaving Iron Citadel	+20 and up	1,064,082	63.0%

A Great multiplies value by 2.5 rather than the 2.25 that two levels would give, so a blade that climbed on Greats is worth more than this table.

Achievement

Citadel Sword Mastery

Forge a Citadel Sword to +20.

Counts at+20, on an unbroken blade

Unlocks the masterworkUnyielding CornerstoneThe first Break of each sword becomes Damage.