- Quantum Realm -
The Quantum Realm is a subatomic dimension where time passes differently.
How To Get There
To get to the Quantum Realm you must be either Ant-Man or Wasp and be the smallest size when your regulator breaks. Once in the Quantum Realm, you will have 5 minutes before you will automatically be pulled out. To get out early, replace your regulator and grow.
There is really no use for the Quantum Realm other than to encourage Ant-Man and Wasp users to watch their regulator usage.
Throughout the Quantum Realm, there are atoms that have a gravitational pull that is hard to escape.