Main.22.com.nvidia.valvesoftware.halflife2.obb -

main.22.com.nvidia.valvesoftware.halflife2.obb

Let’s parse the identifier piece by piece. main.22.com.nvidia.valvesoftware.halflife2.obb

Version 22 likely addressed compatibility with Android 6.0/7.0 and the Shield’s upgrade to Android TV. The naming pattern main

This appears to be an (expansion file) for a version of Half-Life 2 , possibly associated with NVIDIA’s SHIELD or Tegra devices. The naming pattern main.<version>.<package name>.obb is standard for Android apps using Google Play’s expansion files. That said, if you own the game on

In modern "unofficial" setups (like using the Source Engine for Android or launchers by developers like Nillerusr), this file is typically placed in the /Android/obb/com.nvidia.valvesoftware.halflife2/ directory on your device's internal storage.

If you’re asking:

Distributing main.22.com.nvidia.valvesoftware.halflife2.obb without purchase is piracy. That said, if you own the game on Steam (PC), some argue that downloading the OBB for a device you own falls under fair use for personal archiving—though this is legally untested. The safest route: extract your own OBB from a Shield device you legally own.