The fan-made English patch is a great effort from enthusiasts who want to make the game more accessible to a broader audience. The patch seems to be well-done, with many players reporting that it works smoothly and allows them to enjoy the game in English.
After conducting a search, I found that "Room No 9" is a survival horror game developed by MGame and originally released in 2002 for the PlayStation 2. The game received mixed reviews at the time of its release. Room No 9 English Patch
The game received criticism for its awkward controls, grainy graphics, and some frustrating puzzles. However, fans of survival horror games appreciate its creepy atmosphere, decent storyline, and challenging gameplay. The fan-made English patch is a great effort
Would you like to know more about where to download the patch or how to play the game? The game received mixed reviews at the time of its release
The "English Patch" you're referring to is likely a fan-made translation patch that allows players to experience the game in English, even if they don't speak the original language (which was Korean).
You've mentioned "Room No 9 English Patch"!
Here's a brief review of the game and the patch: