Face unlock ID randomly pops up in a game I was playing. I unlocked it not knowing what it was unlocking

Hello sefakor179,

Thanks for choosing the Apple Support Communities. If we understand correctly, you were prompted for Face ID on a game. We can understand why you'd reach out for a solution.

Have you went to Settings > Face ID & Passcode > Other Apps, to see fi the game you are using has access to Face ID?

Here is a resource that can help.

Use Face ID on your iPhone, or iPad Pro

Cheers!