Pricing
darksoil dual licence
In order to use this module in your software, you are required to purchase the commercial licence of this module. When you buy the licence for this module you can use any version released this calendar year in perpetuity.
If you want to keep using newer versions next year, that requires a new licence purchase for that year. The per year cost of using this module is $1000.
If your project is completely GPL complient you can use this module for free.