I'm sure many of us are wondering the same thing here, so thought I'd bring it up:
To what extent are we allowed to use existing assets in our project?
For example, are we allowed to use Creative Commons-licensed images and sound created by other people in our game? What about prefabs or scripts from the Unity Asset store (free or paid)? Can we re-use assets from other projects we've made ourselves?
And if we do use existing assets, should we cite our sources for these somewhere in our project?
Thanks for clarifying.