The Internet Archive hosts version 1.4.01 , which is often safer than random torrent sites.
Sites like APKMirror provide the installation files (APK) for version 1.1.7g , though you will still need the separate OBB data files (usually ~2GB) for the game to run. Compatibility Warnings (Android 14+) The Internet Archive hosts version 1
Many newer phones (like the Pixel 7/8/9 series) cannot run 32-bit apps like MC3 at all. The Internet Archive hosts version 1.4.01
Since the game is considered "abandonware" by many in the community, you can find it on archival and third-party hosting sites: Where to Find It The Internet Archive hosts version 1