Oh no, to clarify the game isn't bad at all and it's certainly worth playing for the atmosphere and mechanics. Similar to the Void the world you play in has its own set of rules you have to learn in order to survive and it's a really incredible experience. One of the more interesting aspects is you can play as three different characters and in each one's story you can find the other two going about town doing their business. Like The Void it is one of the most creative games out there and to this day there is really nothing like it.
The translation is just very.....it's hard to explain but basically I'd say it kind of has a nonsensical, faux poetic vibe mixed with some really bizarre basic grammar issues. It almost leads the game an even more unsettling atmosphere but really it's just a shame that us English speaking people can't experience the game in its true form.
It's not on steam but gog has it for 9.99.
http://www.gog.com/gamecard/pathologic Really is an incredibly unique game with one of the most unsettling stories in gaming, and some great progression and reveals towards the end. Just hope that remake comes out sometime within the next few years so more people will play it and in general just so that it can be considered one of the greatest games without reservations.
Edit:
Rockpapershotgun has a great series of articles on the game. Just keep in mind there are spoilers, especially in the last two parts and if you plan on playing the game it's best to avoid all but the first one.