Transcription: You are now viewing the research screen. There are three basic research groups, tanks, spaceships and buildings, as well as a fourth special group that I will explain later. Each of the main groups has several subgroups. For example, the spaceship group has ship, hull and gun subgroups. In these groups, you can select the invention by clicking on its graphic or by selecting it from the menu. If you press and hold the right mouse button, and move the mouse, you can rotate the sphere that contains the inventions. The wireframe models are designs that are still to be researched, and the solid tex ...
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