If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
You dream to a God, so this game can make you a God.
So you are free to do as you please.
WASD to move, mouse to look, space to move up, control to move down, shift to toggle boost
Tab to open main menu, Q for spawn shortcut, E for the empire menu, R for object editor, T for time control shortcut, U for fullscreen
Left click to use GodPower, Right click to zoom/use secondary GodPower
1/2/3 to select GP category (editors, weapons, physics)
Scroll to select specific GPs