Hamster Power Plant
Put hamsters in cages, and with their vigorous energy, make them a source of electricity.
1.Upgrade the treadmill cabin to allow more hamsters to participate in power generation.
2.Upgrade Power Storage. In order to be able to produce batteries faster.
3.Unlock more hamsters. Produce more batteries. They became real workers.
Full of science fiction in the future world, hamsters work for themselves, and work hard to get high salaries