Thanks so much for everyone who has played the Playtest so far and provided Feedback.
New Interface Indicators!
There are a number of (hopefully) clarifying interface additions to communicate UI intent a bit better.
Explorable Echo Area
First up is an added draggable Are in the Memory Probing, to indicate where the Probe Marker should dragged to look for the memory synapse:

This addition also gives you an indication on the area you already checked. The more you probe, the more that area will recede until the only indicator left is the correct position to place the probeMarker to. So there's multiple things happening depending on how you want to engage with the interface. (You can also still check yourself where the source of the echo is).
More consistent Orb Interaction
The Orb now uses similar interface elements to indicate that you can turn it. I also added an indicator at the top so that you can get a sense if you are going in the right direction. You still need to find a line and follow it though:

Also, some much needed Updates to the Factboard:
Notification if current Memory has changed
When connecting new Fact, you can remove Blockers within the current Memory. There just wasn't any indicator telling you. So now there is!

And yes, I am aware of the Sound FX slider bug and it is fixed now!
I hope these updates get more of you to finish the Playtest.
Please keep the feedback coming, it is very helpful!
Enjoy!
