Making Scientifically possible aliens (Non Humanoid), How to do them correctly?

Any tips or advice, I want to make a sci-fi role playing game to play with my friends but I wanted non humanoid yet scientifically possible aliens. Thank you for reading, and for helping out if you do have a nice day :)

Submitted July 31, 2017 at 07:56AM by TerekKebab http://ift.tt/2vaW5Z0