This is the million-dollar question, and the answer requires some nuance. There is no official, plug-and-play “GTA Underground Mod APK” that you can simply download and run like a standard mobile game. The mod was exclusively developed for the PC version of GTA: San Andreas, and no verified, stable Android port has been officially released by the original developers.

This occurs if the texture format (ETC2, PVRTC, or DXT) is incompatible with your phone’s GPU (Adreno vs. Mali). Ensure you download the specific file variant optimized for your phone's processor brand.

Snapdragon 700 series / MediaTek Dimensity 800 or better (Octa-core). RAM: At least 4 GB to 6 GB of available RAM.

GTA Underground includes Underground Multiplayer (UG-MP), a fork of SA-MP 0.3.7 that is backwards compatible with SA-MP. Features include RGB and pearlescent vehicle colors, radio synchronization, and the ability to customize in-game atmosphere settings like draw distance and sky color.

A clean installation of GTA: San Andreas for Android (specifically compatible with older v1.08 or v2.00 .apk builds depending on the specific mod pack instructions).

Octa-core chipset (e.g., Snapdragon 800 series / MediaTek Dimensity) How to Install GTA Underground on Android

What and phone model are you currently using?

The mod also includes built-in convenience features for players who want to experiment. By entering specific cheat commands—such as “carspawner” or “weaponspawner”—you can instantly spawn any vehicle or weapon from the mod’s massive library. This is perfect for testing new additions or simply having fun with the incredible variety of content.