Before attempting to install any third-party mods, ensure you have the base game from official sources. Poppy Playtime: Chapter 4 was released on . Where to Install Chapter 4 Officially: Poppy Playtime Chapter 4 - Apps on Google Play
Files hosted on non-official sites like Geokar frequently contain spyware or trojans designed to steal personal data.
Have you encountered the "Geokar" installer? Share your experience in the comments below—but remember to never post direct download links. Help fellow gamers stay safe.