As civilization continues to develop, the demand for energy will continue to increase in the vast universe. Develop the star's energy becomes an inevitable choice for civilization's development when the energy on the planet can no longer sustain. In 1960, Mr. Freeman Dyson put forward a legendary concept, the Dyson Sphere theory. Dyson Sphere is an imaginary space giant that can surround the entire star and obtain most or all of its energy output.
As our civilization gathers momentum in its development, the demand for energy keeps skyrocketing. Our planet soon reaches its limit. Naturally, we direct our eyes towards the star. In 1960, Freeman Dyson popularized a concept that would change our path forever - the Dyson Sphere, a hypothetical megastructure that completely encompasses a star and captures a large percentage of its solar power output. 
According to the classification of Kardashev civilization level: First-class civilization can develop and utilize all the resources of the planet on which it inhabits; Secondary civilization can collect the energy of the entire star system and even allow the matter to break the speed limit of light; Third level civilization can master and use all the energy of the entire galaxy. Possessing the ability to build a Dyson sphere indicates that humanity will move towards the Secondary civilization. 
Successfully completing a Dyson Sphere will put ourselves in the ranks of Type II civilization, as per the famous Kardashev scale: Type I civilizations can harness all the energy that reaches their home planet from its parent star. Type II civilizations are capable of harnessing the energy radiated by their own star. Type III civilizations are in possession of energy at the scale of their own galaxy.
Gather Resource Command You can use [Right mouse button] to dick on a ground target to command mecha to there. If the target is a resource, you can order the mecha to gather. Also, for more convenient operation, hold down [SHIFT] + [Right mouse button] to give a series of commands, such as continuously felling trees or moving to the target after felling.
Gathering Resources [Right Click] on any resource to gather. You can hold down [Shift] and assign a queue of actions to Icarus.