Nebula gives you faster renders by crowd-sourcing computers from everyone to render for you. You can choose to render on hundreds of computers instead of your own. Or share your computer's processing power for your profit.
Nebula lets you play your favourite games from any device you already have at home. The game runs on somebody else's gaming PC (a Host), but the gameplay is streamed to and controlled by you with any device you choose. In return, you only pay an hourly rate to the Host for gaming on their hardware.