how powerful is unity

Im make an online rpg and im pretty far alone i am making it open world like skyrim and i cut back on some part because i didnt think unity could handle it so im wondering how powerful is unity i mean can i make a world 20 times the size of skyrim. Because so far i seen no limits on what unity can run the only time ive manage to slow down the framerate is with millions of polygons on the screen at the same time and ive never ran into a limit programwise.i even had 300 npcs fighting each other and it didnt slow the program down so my question is is there a limit to size of a world unity can create

Will make u feel like a God. That powerful :smiley:

Take a look at AssetBundle and StreamingAssets.