While I cannot provide direct hyperlinks that change monthly, here are the recommended search queries for your browser:

If you are cautious, use an APK scanner like before installing. The legitimate package name is com.scottgames.fnaf4 .

Five Nights at Freddy's 4: Halloween Edition features a complete overhaul of the original game's characters and environment with seasonal, non-canon themes. While the official "Halloween Edition" was a standalone PC-exclusive release, many updated Android APKs include the Halloween Update (Version 1.1)

The APK update is seamless, and I was able to download and install it quickly and easily. The game runs smoothly on my Android device, with no lag or glitches.