Please read the license agreement before purchasing: license.txt

How to register Freeworld3D:
Download Freeworld3D from the Downloads Page.
Run Freeworld3D and go to the About menu item,  then click Register to access the registration Dialog box.
Enter your name and click Generate KeyID.
Email this KeyID to soconne@freeworld3d.org
You will then receive an Activation Code.
Enter the Activation Code into the corresponding text box in the registration dialog box.
Click Register.
 

Single License              $30.00 USD
  No limitations or disabled save functions
  Unlimited use on a licensed computer
  Unlimited use of the software and materials produced
  Free upgrades of Freeworld3D 2.X.X
  Discounts on future versions of Freeworld3D