Change the game window built

The game’s resolutions is 9000x6000, so isn’t a square. When I build my game just there are squares resolutions, so I wanna know if there’s a way to change the start resolution (I have the free license). Or if there’s no, i just wanna put my GUItext in the game’s display, but if the resolution is bigger, the text go to the black belt

I’m brazilian

9000x6000? Holy cow! Do you use a wall as screen? My screen has a 1680x1050 resolution and I can’t say that it is small. I guess that unity clamps the resolution (which makes sense since most screens won’t be able to display such a resolution anywas) and you get a maxSizeXmaxSize resolution which is pretty square.

Change the resolution to something reasonable and you should be good to go.