Iron Mine

The Iron Mine allows you to generate Iron which is required for some troops. iron generated per hour will differentiate between the level of the iron patch. This chart is a level basis.
==Upgrade Information==
Level 	Iron per hour	Oil required	Money required	Upgrade time
Level 1 	400 	 	 	3 seconds
Level 2 	640 	 	 	30 seconds
Level 3 	920 	 	 	5 minutes
Level 4 	1240 	Unknown 	Unknown 	1 hour
Level 5 	1600 	6400 	12,800 	3 hours
Level 6 	2000 	Unknown 	Unknown 	6 hours
Level 7 	2440 	Unknown 	Unknown 	9 hours
Level 8 	2920 	Unknown 	Unknown 	Unknown
Level 9 	3440 	Unknown 	Unknown 	Unknown
Level 10	4000 	Unknown 	Unknown 	Unknown
Category:Buildings