Why my unity scene is so grey? I didn’t change anything and there is light. When I zoom in, I can finally see my player and some light.
Could be one or two things, either fog or else auto-bake lighting.
First check fog under Lighting Settings. If fog, turn it off.
Otherwise, note that in the editor the auto-bake lighting doesn’t work properly.
Workaround: disable auto-build lighting and build your lighting for the scene, then it should always look good in editor.
In the build, this should work just fine.