You won’t need a Steam Deck to play it, though, when it launches on March 1st.
But lifes got other plans, and they all involve chairs."
“Not Portal 3!”

one of the subheads declares.
“Lower your expectations: This is not a sequel to Portal.
Now get ready to raise them slightly, because it is in the expanded universe of those games.”

Mouse and keyboard aren’t supported.
It’ll unlock for freefrom Steamin two days time.
In the meantime, you might read aboutwhat Gabe Newell thinks of NFTs.