In Mobile Strike your quarry produce stone which is used to upgrade the buildings throughout your base.
Like the other resource buildings outside your walls, you can upgrade each quarry up to a maximum level of 22. Once maxed a quarry will produce 33,600 stone an hour for your base. You can build up to 25 quarries in total.
Upgrading your quarries also increases the maximum stone capacity of your base. Starting at 2,000 for a level 1 quarry, increasing to 1,444,800 at level 22. The maximum stone capacity is not a hard cap limit on your total stone, but rather a cap at which your quarries stop producing stone for your base.
You can further increase the stone production rate of your quarries by putting skill points in the abilities of your commander and by using special resource boost items. These boosts will apply to all of your quarries.
As you increase in level and your resource demand rises, it is useful to set up an alt account that specifically produces stone. You can equip your commander with stone production items and max out the stone production skills. The stone can then be transferred to your main base.
The table below has the build cost for each upgrade level from 1 to 22, the Headquarters level required, time to build (before boosts) and the power reward. Some of the figures have been extrapolated from the early levels, but should be broadly correct. We will update with accurate figures as they are obtained from Mobile Strike.
Quarry Building Requirements
The figures in red have been extrapolated based on previous level data. Whilst the data should be broadly correct, the red numbers may differ slightly from the actual game figures.
We will update with accurate figures (in black) as we can verify them. Please feel free to leave any details you have from Mobile Strike by commenting below and we will update the data accordingly.