Actually, it isn’t completely abandoned. There is a population of 10(as of 2012) and it still remains the least-populated municipality in Pennsylvania.
Thank you for the added information.
Anyway here are some connections of Centralia with the game/movie I got from this site
The fog effect in the game represents that constant carbon monoxide gas that keeps spewing up from underneath, creating the smokey poisonous atmosphere in Centralia. .
Town The empty foggy town of Centralia, which had general stores, elementary schools, post office’s and other stores, represent the town Silent Hill.
Road Blocks The constant road blocks that you witness in the game when you reach a caved in dead end, represent the unexpected route blocks that are distributed outside of Centralia, which are put their as part of a safety procedure leaving only one road available to enter Centralia. This is also another element that is displayed in the movie and games.
Secret Society The secret society within Silent Hill, represent the Molly McGuire’s, a secret society consisting of Irish only, that use to coincide within the town during the 1800’s. They were known for kidnapping people and their criminal activities within Centralia.
For all those heavily debating amongst themselves about whether Centralia influenced the movie or the game, can we all just be friends and enjoy the realized connections between the real event and the movie/game regardless of what came first
This post said that there’s a real event behind the video/game and that there are connections (which there are), and not that this thing is based on the other thing.