Instead, try or Cura . Both are free, powerful, and safer. If you absolutely need Simplify3D’s specific features, save up $5 a month for 30 months — or wait for a Humble Bundle deal.
Your 3D printer is a tool of creation. Don’t let a cracked slicer turn it into a liability. Have you used a cracked slicer before and regretted it? Share your story in the comments — it might save someone else from the same mistake.