Dedicated servers have been enabled on the PTB. This is primarily a technical test and is not focused on gameplay.
For instructions on how to join the PTB, click here: https://forum.deadbydaylight.com/en/discussion/26/
If you have any feedback for dedicated servers, click here: https://forum.deadbydaylight.com/en/categories/3-1-0-ptb-dedicated-servers-feedback