Dystopian: We from Yevgeny Zamyatin. Russian, 1921 (bit older than you want?)
This alternate reality thing you should look into the novels classified under the "steampunk" genre
Theme: Alcohol, drugs use/misuse.
- Junky from beat generation auther William S burroughs, poet in this genre Allen Ginsberg
- Different genre writer Phillip K Dick: A scanner darkly