The majority of communication about REDengine happens on our Discord server. Use the following link to join our modding community.
If you want to follow development, look for help with our tools, or contribute, Discord is the place to be.
You may find the following Discord to be helpful as well. While the CP77 modding community is focused on REDengine 4, this server is home to many seasoned veterans of REDengine 3.