We anticipate adding Unreal compatibility in the next few months. There are a few developers currently working with our engineers on Unreal ports, and once that work is done we will make an Unreal develoeprs guide available. 

If you have a game built in Unreal that you would like to bring to the Atari VCS, you do not need to wait on this work to be finished. Please visit shop.atarivcs.com/developer to submit your work and we will contact you.