almost 4 years ago - Gay Myers (Luzi) - Direct link
If you believe someone is cheaitng, you can report them in the game and send additional evidence to support: https://support.deadbydaylight.com

In the case of them being immersed and intentionally not progressing the game, that can be considered holding the game hostage after some time. IF there is prooif they have done nothing in the game at all for a long while, e.g. no progression on generators, no totems done, etc.