The Smoke Room is a 100-year prequel to Echo, which is a horror-themed furry visual novel.

For those looking to play The Smoke Room and not finding it on https://echoproject.itch.io/, the visual novel's Build 35 is now hosted on https://tsr-vn.com/.

The reason for this seems to have been some complications between Echo Project and GeorgeSquares, the main TSR writer, which lead to a hiatus of a few months.

I'm not familiar with both projects' history, but presumably them going separate ways means TSR will resume course since it seems to have a history of being regularly updated anyway.