Hi Fadedurbex, are you still looking for closed playtesters for LIE LIAR! LIE!? Your need for detailed feedback on gameplay, bugs, difficulty and atmosphere closely matches a platform I recently built for indie developers.
It’s called Iconic Nexus. Developers can publish a project, create a structured testing campaign and specify the feedback they need. Members earn credits for testing one another’s projects and can use those credits for their own campaigns.
The platform is completely new, and I’m looking for a few founding developers who are willing to try it and provide honest feedback on what needs improvement. If you’re interested, I’d be happy to personally help you set up the project.