Unfortunately, the downloadable version doesn't work inside Wine.
Viewing post in Courier: Tentacle Road comments
Yep, I took into account the installation instructions you wrote on the main page; for some reason, I was unable to successfully get it into my Wine prefix.
It's worth mentioning that I was tired at the time, so I'll look into it a bit deeper later. Still, thank you for answering. And I really like your game.