Mystery reward...
	Resources...
	Skill points...

Select the that golden chest at the bottom right corner of the screen every three minutes to get a random gift.

Buildings that generate you resources over time, such as your Quarries, Farms, and Lumbermills, should always be upgrade.

As you level up, skill points will be earned. At the start, you will only be able to use Building and Research skills, which speed up those respective activities. Level up to unlock more skills.