breezett93 wrote:I just thought of ARC. Does that apply the same way as Steam?
No. ARC will let you start it up again without it complaining about an existing running game, and let you launch a second copy.
Steam is more annoying in that if you are running a Steam game (one that you cannot run without using Steam to launch it) then when you start up steam the second time to launch a second game instance, it either 1) sees the existing game, and wont let you launch another copy or 2) sees the existing game and shuts it down. Steam is (currently) the only launcher process that is like this. The others, once you shut them down between game launches, will allow a second game instance to launch.