Using a file manager, copy the valve folder from your PC’s Half-Life installation (e.g., C:\Program Files (x86)\Steam\steamapps\common\Half-Life\valve ) to /sdcard/xash3d/ on your Android device.
For those unfamiliar with Black Mesa, the game follows the story of Gordon Freeman, a theoretical physicist at the Black Mesa research facility. An experiment gone wrong opens a portal to another dimension, unleashing a horde of alien creatures on the research facility. Players take on the role of Gordon Freeman, navigating through the facility, fighting to survive, and uncovering the mysteries behind the catastrophic event. black mesa android apk updated