Hi,
I am trying to make game with 2d sprites as tiles 1x1 units and they sometimes seems to flicker when moving the player/camera position. Its like having 1 pixel gap between the tiles. All the tiles are in rounded to exact positions and there shouldnt be any gap whatsoever. I tried to find solutions from old answers but none of them really gave me the real answer.
Might this be the problem of camera or such? I havent been aiming any pixel perfect or such.
Here is a better solution in a whole internet: http://nielson.io/2015/10/fixing-gaps-between-sprites-better-2d-in-unity-part-2/
Just create an atlas and problem will disappear without any scripts or making crutchy sprites 
I had this too and I fixed it by Instead of using a sprite sheet I use individual images!
Have you tried going to Edit → Project Settings → Quality and disabling Anti-Aliasing?
Disabling MSAA on your camera or in the quality setting also fixes this.