Just Asking
Do you mean downloading someone else game and uploading it (doesnt matter where you download the game)? Yes
Do you mean copying a play style like RPG with original art like sword-gun-lash-spacebeam super weapon? No
Do you mean downloading some else game and switching art or code to trick people into thinking the original is fake? Yes
using exactly the same assests/asset flipping... although not illegal EVERYONE hates it.... There are some *Direct copies* of specific games out there *rim world vs king under the mountain* for example... take a very close look and notice how exactly the same they are??? The only reason its legal (as far as i know) is because they have rivers in king under the mountain and they changed certain rules and triggers and etc... but on the surface it looks EXACTLY the same... and it is still be offered on steam and here... so *copying* to a certain extent MUST be legal ;)