diff --git a/Casks/rhinoceroswip.rb b/Casks/rhinoceroswip.rb
new file mode 100644
index 000000000..d451e513f
--- /dev/null
+++ b/Casks/rhinoceroswip.rb
@@ -0,0 +1,12 @@
+cask 'rhinoceroswip' do
+  version '5C131w'
+  sha256 'a550976da9e8272240723451c46d2aaf7e76bb26b6d5539be224e5c81a39e53a'
+
+  # mcneel.com was verified as official when first introduced to the cask
+  url "https://files.mcneel.com/Releases/Rhino/5.0/Mac/RhinoWIP_#{version}.dmg"
+  name 'Rhinoceros WIP'
+  homepage 'http://www.rhino3d.com/download/rhino-for-mac/5/wip'
+  license :commercial
+
+  app 'RhinoWIP.app'
+end