So I was bored and I found this program called "SoftXpand 2011" been using the duo version. So anyways it basically turns your computer into two, everything is shared between them and seperated by user accounts. Well it turns out this program is amazing for lan parties, I have a nice computer like the most of us on here so it can handle anything you throw at it.
So I decide lets try running two games at the same time on the same computer with two users logged in at the same time with their own keyboard, mouse and monitor. Turns out I had no issues at all, was playing Company of heroes today, while my bro was playing skyrim all on one pc with out lag!
Meaning if you've got a beast of a machine you could share it with everyone in your house or use it for a lan party. This would save you space, energy and money since you only need one computer to act as others.
Also if you've got a buddy you could combinedyour cash and build an OP gaming machine and just share it together.
~If you want to play the same game on the same machine you might have to copy the game folder to another location and run it.