How to run a game or other program in a new X session in Ubuntu Linux

To do this, CTRL-ALT-F1 to an open terminal, log in, and run:

xinit ./program -- :1

where program is the program file you want to start in a new X session. Assuming your normal X session is on :0 and appears when you CTRL-ALT-F7, your new one will spawn on CTRL-ALT-F8.

Questions, comments? Please feel free to leave them in the comments section below. Thank you.