The game is not yet available for purchase. Tom said it'll be on Steam. Just no updates for that. The last month's update is from October 13th, 2022 and it has:
"EXTERIOR: Most of the exterior is completed; we are working on adding missing parts and cutting out the last of the windows and doorways that will seamlessly connect our interior environments with our exterior model.
INTERIOR: A-Deck is finished with the exception of moldings in the Smoke Room. Levi is doing an immeasurable amount of damage to his mental health by cutting out hundreds, if not thousands, of corridor paneling by hand to model every significant passenger corridor for at least First Class.
SINKING: The sinking has been fully blocked out and we are adding effects.
ETC: Ambient details are being done and marketing strategies are being finalized, as well as a few additional partnerships for launch. We are even beginning to lay the ground work for our next project after Lusitania.
Please note that we work on the ship a lot more often than we update this page, so an update from a few days ago doesn’t mean we’ve stopped working."
The only link available to the virtual experience is this:
Lusitania: The Greyhound's Wake — HFX Studios