Even though Wintermute Engine is provided for free, donations are accepted and will encourage further development. The money received from donations will be used to help to cover the expenses associated with WME development (website hosting, purchasing software tools and libraries, etc.).
Since Wintermute Engine is used for a variety of products, both hobby and commercial, we believe this is the most fair way of handling development costs.
If you find Wintermute Engine helpful, and especially if you are making or are intending to make any profit from it, please consider making a donation.