I have some texts, objects, and other items that give a bad effect when you look at them from a long-ranged distance. They look sharp all over the edges. I notice other games and projects have something in the options menu where you can "smooth out sharp edges." This makes the sharp edges more smooth and appealing to the eye rather than sharp and 'ugly.' How can I smooth out sharp edges in the GE; also, if you can, would it work with a property (boolean) where, when set to true, the edges are smooth, but edges are sharp when false (like usual)? Thanks!
Turn up the number of AA samples in Properties > Render settings:
Note that this may affect performance. Also note that this setting only seems to take effect in the standalone player. Otherwise the multisample setting in the user preferences is used.