On the fields of the Idle Mine & Merge game, you will have a lot of work and, logically, you will need brute male power, because you need to fight monsters, extract resources, biting into the rock. Swords are needed for battle, and they can be forged from the ore that you mine. To get to great depths you need good tools. Buy the cheapest ones, and then combine them together to get more reliable and efficient ones. The same can be done with weapons. All processes must run in parallel. To earn money, kill more monsters, and to get weapons, get more resources in Idle Mine&Merge.