Diamond Miner
The Diamond Miner is one of the resource gathering machines in the game. It gives a some Gold per hour (but ticks every few seconds) and maxes out at some point. Further resource ticks will be wasted until you personally "harvest" the resource by tapping on the structure.
It is one of the primary targets of the Sniper units so it is a good idea to not leave these structures at the edge of a base without any defense. These structures also has low to moderate hit points and can take relatively little damage.
In PvP, it is one of the structures that "gives" resources when damaged. Obtaining over 50% of your opponent's resource yields one star for completion.
Build Quantity | Command Center level required (CC level)
1(CC7), 2(CC8), 3(CC10)