Controls

Beyond These Stars is primarily controlled by keyboard and mouse, but keyboard hotkeys are available for constructing buildings. Numbers 1-9 and 0 can be used to select categories. The bracket keys can be used to rotate building placement and the ctrl key can be used to toggle road-requirement mode to on or off. R can be used to toggle road mode.
Demolish mode can be toggled by tapping the X key.
The camera can be controlled using the mouse wheel and freely adjusted by holding the middle mouse button.