Better look again. 
Terresculptor Standard Edition is free for academic, commercial, non-commercial and student use.
Only TerreSculptor Professional is pay for use and has four different licenses.
And Pro was also always totally free for all uses during its entire alpha, beta, and release candidate phases, which was multiple years up until month (Dec 2016).
has always been the case with the TerreSculptor edition licenses.
TerreSculptor Standard Edition which has a free license and no expiry date is available for download.
TerreSculptor Professional Edition is available at the online store at store.demenzunmedia.com and at an extremely reasonable price.
I am very appreciative and thankful to anyone who buys a copy.
There is a reason why most of type of software costs some money.
The years of development have cost me hundreds of thousands of dollars and hours of development time.
If the sales are sufficiently good enough, the income will be reinvested into hiring another programmer so that future features can be added much more quickly.
The current wish list of thousands of future features will take me a few years to implement and complete.