If you already own GMod on Steam, install the Steam Link App on your Android device.
You can play the actual PC version of GMod on your phone using cloud streaming . This requires you to own the game on Steam. 1. Steam Link (Recommended) Steam Link from the Play Store. Run GMod on your Stream the video to your phone over Wi-Fi. 2. GeForce NOW Sign up for Nvidia GeForce NOW Link your Steam library. Play GMod via the cloud on your phone (no PC required). set up Steam Link for the first time, or are you looking for more sandbox game recommendations that are native to Android? gmod android port download link
If you are looking for a GMod-like experience on your phone, these are the most popular and safe options: Simple Sandbox 2 If you already own GMod on Steam, install