This site is being deprecated.
Please see the official X‑Plane Support page for help.
An internet connection is required to occasionally verify your product key. X-Plane will stop working after approximately 2 weeks (I think) if it cannot connect to the internet to verify the key.
X-Plane can be installed on all of your home computers, including new purchases. We do require you to have a license for each of the networked computers that will be running X-Plane at the same time. If you are not running X-Plane at the same time on multiple computers, you do not need more than one product key.
This site is no longer being actively maintained.