Estimated prices for freelance work will be estimated based on workload, license and re-saleability. Estimates for a typical non-exclusive license ranges between 25-150$ per item, for example a custom created particle system for Unity.
Non-exclusive, non transferable license: The software can be sold to other clients, no resale of source by client
Exclusive, non transferable license: The software will only be available to the exclusive client, no resale of source by client
Full copyright license: The client will have all the copyrights to the software to distribute freely
By choosing the non-exclusive the client will get a high quality product at a low price, but the item might later be sold to other clients and/or uploaded to asset vendor sites like the Asset Store or Activeden.net.
Interested in purchasing more several files at once? Contact me for a package deal!