Click and drag, or use WASD or the Arrow Keys to move the screen Tap the background to make Stardust Tap on a generator to purchase it, assuming you can afford it. The cost of a generator is shown in a speech bubble when you hover your mouse near it. When you collect enough of a generator, it will automatically rank itself up, indicated by a sound effect and a massive increase to its production. Upgrade the universe to reset your progress, but gain a production boost and unlock new generators. Pressing the green flag will NOT reset what episode you are on, so you can't accidentally lose your progress. :D
Most generator icons from the Solar System Scope website All SFX and music is from Cell to Singularity All code by me (: