Smithy Room

Some info here might be faulty, so please edit it if there is.

Level 1
Cost: 7.5K Gold

Castle Level Requirement: 3

Build Time: 10 Minutes

Daily Upkeep: 250 Gold

This level is pretty much equal to the anvils at spawn, only that you unlock 3 new things which is the ability to craft A bow and arrows and a bucket.

Unlocks:

Item > Required Smithy Skill Level
 * Wood Sword > 0
 * Wood Shovel > 0
 * Wood Pickaxe > 0
 * Wood Axe > 0
 * Wood Hoe > 0
 * Leather Cap > 3
 * Leather Chestplate > 3
 * Leather Pants > 3
 * Leather Boots > 3
 * Bucket > 5
 * Bow > 8
 * 4 Arrows > 8

Level 2
Cost: 55k Gold

Castle Level Requirement: 5

Build Time: 1 hour and 30 minutes

Daily Upkeep: 916 Gold

With this new upgrade one unlocks the ability to craft stone tools, and also chainmail armor, which is crafted through using an Iron Block, for each piece.

Unlocks:

Item > Required Smithy Skill Level
 * Stone Sword > 11
 * Stone Shovel > 11
 * Stone Pickaxe > 11
 * Stone Axe > 11
 * Stone Hoe > 11
 * Chainmail Helmet > 15
 * Chainmail Chestplate > 15
 * Chainmail Leggings > 15
 * Chainmail Boots > 15
 * Iron Bars > 19

Level 3
Cost: 250k Gold

Castle Level Requirement: 6

Build Time: 12 hours

Daily Upkeep: 2.7k Gold

Unlocks:

Item > Required Smithy Skill Level
 * Rails > 24
 * Minecart > 29

Level 4
Cost: 5.5m Gold

Castle Level Requirement: ?

Build Time: 24 hours

Daily Upkeep: 16.7k Gold