First and foremost you are going to need AtomicRPG.com. This website is your portal into all of the rules, mechanics, ideas, and fun for the Atomic RPG System.
Next, you will need a few friends to play the Atomic RPG System with you.
Some pencils and paper to write down all of the important things about your character. You can use some of the more advanced and helpful Atomic RPG System Tools on this AtomicRPG.com.
You may also want to have a set of dice to play Atomic. Dice add a bit of randomness and the excitement of chance to the Atomic RPG System. If you don’t have a set of dice yet you can use the Atomic RPG System Random Die Roller, created specifically for the Atomic RPG System.
That’s all you need to play the Atomic RPG System system!