Hi Laura,
The Linux version works.
In order to run the program, it may be necessary (it was for me) to run a terminal window (command line interface) in the game folder and type:
./aroomwithoutyou
Else, clicking on the file may just open an editor with the content of the file...
Maybe most Linux users are already aware of that, but you could add this information to your instructions...
Cheers,
Nicolas