Since you are not downloading from the Google Play Store, you need to allow installations from unknown sources.
While there is no official version of Mineirinho Ultra Adventures 2 (also known as Miner Ultra Adventures 2 mineirinho ultra adventures 2 download android
The original Mineirinho Ultra Adventures did have a small mobile presence through a DLC-style companion app released in 2017. However, for the sequel, the developer focused entirely on a PC release using the Unity engine. Since you are not downloading from the Google
If you want to play it on an Android device, you must use a PC-to-Android emulation tool. Playing on Android via Winlator (PC Emulator) for the sequel